Materials

In our daily production we process a wide variety of thermoplastic polymers ranging from low cost materials to technical plastics and super polymers.

See below for a short and accurate description of properties in most of our product range.

If you require materials which do not appear on the list, please do not hesitate to contact us.

 

The descriptions cover the following materials:

Polyamides
PA 11, PA 12, PA 6, PA Alloys

Flexible polymeres
PUR, PEBA, TPE

Fluor polymeres
PVDF, FEP, ETFE, PFA

Polyolefines
LDPE, HDPE, EVA, PP

Others
POM, PC, Cellulose, PSU, PVC

 

Polyamides

PA 11 (POLYAMIDE 11)

 

PA 11 has extremely good mechanical properties in a wide temperature range, resists long term mechanical loads without signs of fatigue and its chemical resistance is fine. Like other polyamides, PA 11 will suffer from hydrolytic wear after long-term exposure to warm water.

PA 11 is less rigid than PA 6. The E-module is 1100 MPa and 2200 MPa, accordingly. If you require flexibility, PA 11 is better suited than PA 6 and is able to incorporate larger or smaller quantities of plasticizers.

The natural colour of PA 11 is milk-white, but at small material thickness unmodified types can appear semi-transparent.

PA 11 is mainly used for tubes, hoses and cables for applications in industries from food and medical to pneumatics and off-shore.

Characteristics 
- good combination of strength, toughness and hardness 
- high durability 
- low dimensional stability 
- heat resistant continuously up to +100°C and peak temperatures up to 140°C 
- good chemical resistance 
- limited water absorption compared to other PA-types

Work range 
-40°C to +100°C

Chemical resistance 
PA 11 is resistant to: 
- oil products, petrol, fatty substances, lubricants and 
solvents such as alcohol, ketones, esters and ether 
PA 11 is not resistant to: 
- many acids, strong bases and oxidizing agents 
- chlorine based products

UV and weather resistance 
PA 11 will to some extent be influenced by UV-light, but in its standard form it has been stabilized by additives.

Flame resistance 
PA 11 is difficult to ignite and self-extinguishing. UL 94 classification is for standard types HB.

Food contact 
A number of unmodified types have been approved according to European regulations, while only one has been approved according to the FDA.

 

PA 12 (POLYAMIDE 12)

 

PA 12, also known as Nylon 12, belongs to the group of polyamides. The polyamides all have a number of carbon atoms in their molecular chain. The general rule is: the more carbon atoms in the chain, the lower melting point and water absorption.

For PA 12 the melting point is 177°C, while the water absorption is approximately 1%. For comparison PA 6 has a melting point at 220°C and a water absorption of 9-10%.

PA 12 has extremely good mechanical properties in a wide temperature range, resists long term mechanical loads without signs of fatigue and its chemical resistance is fine. Like other polyamides, PA 12 will suffer from hydrolytic wear after long-term exposure to warm water. PA 12 and its "sister" material PA 11 are very similar with minor differences.

PA 12 is less rigid than PA 6. The E-module is 1200 MPa and 2200 MPa, accordingly. If you require flexibility, PA 12 is better suited than PA 6 and is able to incorporate up to approximately 15% of plasticizers.

The natural colour of PA 12 is milk-white.

PA 12 is mainly used for tubes, hoses and cables for applications in industries from food and medical to pneumatics and off-shore.

Characteristics 
- good combination of strength, toughness and hardness 
- high durability 
- low dimensional stability 
- heat resistant continuously up to +100°C and short-term temperatures up to 140°C 
- good chemical resistance 
- limited water absorption compared to other PA-types

Work range 
-40°C to +100°C

Chemical resistance 
PA 12 is resistant to: 
- oil products, petrol, fatty substances, lubricants and solvents such as alcohol, ketones, esters and ether 
PA 12 is not resistant to: 
- many acids, strong bases and oxidizing agents 
- chlorine based products

UV and weather resistance 
PA 12 will to some extent be influenced by UV-light, but in its standard form it has been stabilized by additives.

Flame resistance 
PA 12 is difficult to ignite and self-extinguishing. UL 94 classification is for standard types HB.

Food contact 
A number of unmodified types have been approved according to European regulations.

 

PA 6 (POLYAMIDE 6)

 

PA 6, also known as Nylon 6, belongs to the group of polyamides. The polyamides all have a number of carbon atoms in their molecular chain. The general rule is: the more carbon atoms in the chain, the lower melting point and water absorption.

For PA 6 the melting point is 220°C and the water absorption is 9-10%.

PA 6 has extremely good mechanical properties in a wide temperature range, resists long term mechanical loads without signs of fatigue and its chemical resistance is fine. Due to the high absorption of water PA 6' dimensional stability is poor. Like other polyamides, PA 6 will suffer from hydrolytic wear after long-term exposure to warm water.

PA 6 is more rigid than both PA 11 and PA 12 and extremely well suited for modification with glass fibres and filling materials in order to obtain even firmer materials.

The natural colour of PA 6 is milk-white.

Since PA 6 is sold at a lower price than PA 11 and PA 12 and has extremely fine mechanical qualities, it is used for many purposes in heavy as well as processing industry, for food contact, motor industry and articles for packaging and domestic utensils.

Characteristics 
- good combination of strength, toughness and hardness 
- high durability 
- low dimensional stability 
- heat resistant continuously up to +80-100°C and short-term at temperatures up to 150°C 
- god chemical resistance 
- large water absorption compared to other polyamides

Work range 
-40°C to +80-100°C (at higher temperatures and continuous operation stabilisation is required).

Chemical resistance 
PA 6 is resistant to: 
- oil products, petrol, fatty substances, lubricants and solvents such as alcohol, ketones, esters and ether 
PA 6 is not resistant to: 
- many acids, strong bases and oxidizing agents 
- chlorine based products 
- hydrolysis

UV and weather resistance 
PA 6 will be influenced by UV-light, but in its standard form it has been stabilized by additives.

Flame resistance 
PA 6 is difficult to ignite and is self-extinguishing. UL 94 classification is for standard types HB.

Food contact 
A number of unmodified types have been approved according to European regulations and FDA.

 

PA ALLOYS (POLYAMIDE ALLOYS)

 

As the polyamide 6 or 6.6 both have poor dimensional stability we offer a number of polyamide alloys with optimised properties. With a view to improve their properties these alloys are often based on PA 6 or PA 6.6 and various additives or other polymers.

It would not be possible to schedule their properties the way we have for other materials in this section.

FleXible polymereS

PUR (POLYURETHAN)

 

PUR is a common name for a group of materials containing urethane bonds. PUR is available as thermo set plastics, cellular plastics, adhesives, joint fillers and traditional thermoplastics. In this description we will focus on thermoplastics.

There are two categories of thermoplastic polyurethanes (TPU), ester or ether. The ether based types are more resistant to thermal hydrolysis and chemicals than the ester-types. Furthermore, the ether based types are more transparent than the ester-types.

Among other things PUR (TPU) is used for pneumatic hoses and spirals.

Characteristics 
- good strength and flexibility 
- high wear resistance 
- unchanged properties at temperatures down to -50°C 
- good resistance to ozone 
- good elastic memory 
- shiny surface

Work range 
-50°C to +60°C

Chemical resistance 
PUR is resistant to: 
- oils and a number of different chemicals. 
PUR is not resistant to: 
- strong acids, bases and solvents 
- ester-based PUR badly resists thermal hydrolysis and is therefore not recommendable for contact with water.

UV and weather resistance 
PUR is not resistant to UV, but can be stabilised by additives.

Flame resistance 
PUR is not flame resistant (classified as HB according to UL 94).

Food contact 
FDA approved ether types are available.

 

PEBA (POLYETHER-BLOCK-AMID)

 

PEBA is a copolymer of polyamide (hard segment) and polyether (flexible segment). By changing the proportion between polyamide and polyether it is possible to change the properties of the material. The more polyamide the harder the product and vice versa, the more polyether the more flexibility.

In general, PEBA is a flexible polyamide without plasticizer.

PEBA is available with a surface hardness ranging from shore D 25 (75 A) to D 72, with a melting point from 133°C to 174°C, accordingly. The water absorption is similar to PA 12, that is approx. 1%.

The colour of PEBA depends on the type. The softest types are semi transparent, but not as shiny as PUR, but the natural colour of the more rigid types is milk-white.

PEBA is mainly used as an alternative to PUR for flexible hoses due to its unchanged mechanical properties in a temperature range from -40°C to +80°C.

Characteristics 
- flexible (no change over time, since no volatile plasticizers were used) 
- unchanged mechanical properties in wide temperature interval 
- good impact strength even at low temperatures 
- fine dimensional stability 
- good chemical resistance 
- maintains its mechanical properties

Work range 
-40°C to +80°C (dependent on type).

Chemical resistance 
PEBA is resistant to: 
- mineral oil, petrol and other unpolar matters 
- ozone 
PEBA is not resistant to: 
- polar matters (swells)

UV and weather resistance 
PEBA will to some extent be influenced by UV-light, but in their standard form several types have been stabilised by additives.

Flame resistance 
PEBA is classified HB according to UL 94

Food contact 
PEBA is not approved for food contact.

 

TPE (TERMOPLASTIC ELASTOMERS)

 

Thermoplastic elastomers is a group of materials that has some rubbery properties. Unlike rubber, which must be vulcanised, TPE can be processed the traditional way with thermoplastic processes such as die casting and extrusion.

The thermoplastic elastomers are usually divided into 5 groups:

  • Styrene based TPE
  • Olefins based TPE
  • Urethane based TPE (TPU)
  • Ester based TPE
  • Amide based TPE

The styrene based TPEs are mainly used for die casting and as adhesives. S-TPE has a good flexibility at low temperatures, poor hardness and limited chemical and heat resistance.

The Olefins based TPEs (mainly EPDM-rubber) are widely used for motor and sports industries and for extruded profiles and strips. O-TPE has good mechanical strength, is usable within a wide temperature interval (-40°C to +100°C), has good resistance to ozone and it is therefore safe to use it outside, due to its fine UV-resistance.

The Urethane based TPEs are described in the section about Thermoplastic Polyurethane (PUR).

The ester based TPEs are less costly than the three before mentioned and are typically used where good chemical resistance is needed, e.g. to petrol, oils and aromatic solutions. E-TPE is more rigid than both the S-, O-, and U-TPEs and has poor resistance to concentrated acids and bases.

The amide based TPEs are described in the section about Polyether-Block-Amide (PEBA).

Fluor-
polymeres

PVDF (POLYVINYLIDENFLUORIDE)

 

PVDF is a thermoplastic partly crystalline material which is characterised by its high degree of purity and extremely fine mechanical properties which are superior to all other polymers in the flour-group. In return PVDF's thermal properties are among the weakest in the flour polymer-group.

The natural colour of PVDF is usually white.

PVDF is available both as homopolymers and copolymers. The homopolymer is more rigid than the copolymer.

PVDF is mainly used in areas where a combination of high resistance to chemicals, mechanical strength and thermal loads is required. PVDF is often a better choice than PTFE or PFA, as the mechanical properties for PVDF are fully adequate and the price and weight are lower.

Characteristics 
- extremely fine mechanical properties (impact strength, tensile strength, rigidity, etc.) 
- extremely fine chemical resistance 
- resistant to thermal hydrolysis (not influenced by moisture) 
- fine wear resistance combined with very low friction 
- high material purity 
- high resistance to ageing 
- heat resistant 
- UV-resistant 
- fine dielectric properties

Work range 
-30°C to +140°C for homopolymers and a little lower maximum temperature for copolymers.

Chemical resistance 
PVDF is resistant to: 
- most mineral oils and organic acids, oxidising environments, hydrocarbons, alcohol and halogenous solutions. 
PVDF is not resistant to: 
- flour, warm sulphuric acid, warm concentrated alkali and solutions like acetone ethyl acetate, in which PVDF will swell.

UV and weather resistant 
PVDF is resistant to the ageing effect in e.g. UV-light.

Flame resistance 
PVDF has very fine self-extinguishing properties. Classified as V0 according to UL 94.

Food contact 
Due to its high material purity PVDF is applicable for contact to foods and medicine. The market has types with FDA and USP Class VI approvals.

 

FEP (TETRAFLUORETHYLENE-HEXAFLUOR-PROPYLENE)

 

FEP is a copolymer of tetra fluor ethylene and hexa fluor propylene. FEP is an interesting alternative to PTFE, as FEP has largely the same properties as PTFE. FEP is more flexible and has limited service temperatures compared to PTFE, which is applicable in the area -270°C to +260°C.

The natural colour of FEP is transparent.

FEP is mainly used in areas where a combination of high resistance to chemicals, flexibility and thermal loads is required. FEP will often be advantageous compared to PTFE or PFA.

Characteristics 
- good mechanical properties 
- extremely fine resistance to chemicals 
- resistant to thermal hydrolysis (moisture) 
- low friction factor 
- high resistance to ageing 
- heat resistant 
- UV-resistant 
- excellent electrical properties

Work range 
-40°C to +205°C

Chemical resistance 
FEP is resistant to most chemicals within a large temperature range.

UV and weather resistance 
FEP is resistant to the ageing effect in e.g. UV-light.

Flame resistance 
FEP has very fine self-extinguishing qualities.

Food contact 
FEP is applicable for food contact. Types approved according to European regulations are available and also types approved for medical use according to USP Class VI.

 

ETFE (ETHYLENE-TETRAFLUORETHYLENE)

 

ETFE is a copolymer of ethylene and tetra fluor ethylene. ETFE is a well suited, low cost alternative to PTFE, as ETFE has largely the same properties as PTFE.

ETFE has limited service temperatures compared to PTFE, which is applicable in the area -270°C to +260°C.

The natural colour of ETFE is usually milk-white.

ETFE is mainly used in areas where a combination of high resistance to chemicals, toughness and thermal loads is required. It will often be advantageous to use ETFE in stead of PTFE or PFA.

Characteristics 
- good mechanical properties 
- extremely fine resistance to chemicals 
- resistant to thermal hydrolysis (moisture) 
- low friction factor 
- high resistance to ageing 
- heat resistant 
- UV-resistant 
- excellent electrical properties

Work range 
-100°C to +150°C

Chemical resistance 
ETFE is resistant to most chemicals in a large temperature range.

UV and weather resistance 
ETFE is resistant to the ageing effect in e.g. UV-light.

Flame resistance 
ETFE has very fine self-extinguishing properties and is classified V0 according to UL 94.

Food contact 
No available information.

 

PFA (PERFLUORALKOXYPOLYMER)

 

Its properties close to PTFE, PFA is a suitable, low cost alternative to PTFE. PFA has better mechanical properties than FEP at temperatures > +150°C. The maximum application temperature for PFA is on PTFE-level, which can be used in the range up to +260°C .

The natural colour of PFE is usually milk-white.

PFA is mainly used in areas where a combination of high resistance to chemicals, flexibility and thermal loads is required. In many cases PFA would be a better choice than PTFE.

Characteristics 
- good mechanical properties 
- extremely fine resistance to chemicals 
- resistant to thermal hydrolysis (moisture) 
- low friction factor 
- high resistance to ageing 
- heat resistant 
- UV-resistant 
- excellent electrical properties

Work range 
-40°C to +250°C

Chemical resistance 
PFA is resistant to most chemicals within a vast temperature range.

UV and weather resistance 
PFA is resistant to the ageing effect in e.g. UV-light.

Flame resistant 
PFA has very fine self-extinguishing qualities and is classified as V0 according to UL 94.

Food contact 
Types approved by the FDA and European regulations are available in the market.

Polyolefines

LDPE (LOW DENSITY POLYETHYLENE)

 

LDPE belongs to the group of thermoplastic materials (commodities) known as polyolefines. The group also includes HDPE, EVA and PP.

LDPE is relatively soft and flexible, yet has a high level of impact toughness. The natural colour of LDPE is milk-white.

LDPE is a low cost material which is widely used in both heavy, food and medical industries due to its fine mechanical and chemical properties within a particular temperature range.

Characteristics 
- extremely fine impact toughness 
- low (no) absorption of water 
- good barrier properties 
- well suited for food contact 
- good mechanical properties at low temperatures 
- good resistance to chemicals at temperatures < 50°C 
- resistant to thermal hydrolysis

Work range 
-50°C to +60°C

Chemical resistance 
LDPE is resistant to: 
- most aqueous solutions of salts, acids and bases 
LDPE is not resistant to: 
- highly oxidizing chemicals (nitric acid, oleum and halogens) 
- most chemicals at temperatures > 60°C.

UV and weather resistance 
LDPE is not resistant to UV, but can be stabilised by additives.

Flame resistance 
LDPE is easily inflammable and burns readily.

Food contact 
LDPE is applicable for food contact. Types approved by the FDA and European regulations are available.

 

HDPE (HIGH DENSITY POLYETHYLENE)

 

HDPE belongs to the group of thermoplastic materials (commodities) known as polyolefines. They also include LDPE, EVA and PP.

HDPE is firmer and stronger than LDPE, but the impact toughness is poorer. The friction and wear qualities in HDPE are good. This is especially valid for types with a molecular weight above average, which are often known as HMW-PE or WHMW-PE. UHMW-PE which has a molecular weight higher than the two mentioned types, cannot be processed with traditional extrusion or die cast equipment, but must be extruded by rod or pressure die cast.

The natural colour of HDPE is milk-white.

HDPE is a low cost material which is widely used in both heavy, food and medical industries due to its fine mechanical and chemical properties within a particular temperature range.

Characteristics 
- good mechanical properties (-50°C to +70°C) 
- low friction 
- good durability 
- low (no) absorption of water 
- good barrier properties 
- well suited for food contact 
- fine resistance to chemicals at temperatures < 60°C 
- resistant to thermal hydrolysis

Work range 
-50°C to +70°C

Chemical resistance 
HDPE is resistant to: 
- most aqueous solutions of salts, acids and bases 
HDPE is not resistant to: 
- highly oxidizing chemicals (nitric acid, oleum and halogens) 
- most chemicals at temperatures > 60°C.

UV and weather resistance 
HDPE is not resistant to UV, but can be stabilised by additives.

Flame resistance 
HDPE is easily inflammable and burns readily.

Food contact 
HDPE is applicable for food contact. Types approved by the FDA and European regulations are available.

 

EVA (ETHYLENE-VINYL-ACETATE)

 

EVA belongs to the group of thermoplastic materials (commodities) known as polyolefines. They also include LDPE, HDPE and PP.

EVA is a copolymer of ethylene and vinyl acetate (VA) its content of VA varying from approximately 5% to 40%. By changing the content of VA the material properties are adjusted and become more or less flexible. Types with high contents of VA have a very low melting point and are mainly used as adhesives.

The natural colour of EVA with a low VA-content is milk-white, while an increasing concentration of VA provides more transparent products.

EVA and the comparable materials EBA and EMA are increasingly being used as alternatives to soft PVC in the medical industry, but EVA is also widely used in the food and toy industries (plastic beads meant for ironing).

Characteristics 
- good impact toughness and elongation at break 
- low (no) absorption of water 
- suitable for food contact 
- good mechanical properties at low temperatures 
- good resistance to chemicals at temperatures < 50°C 
- resistant to thermal hydrolysis 
- high friction (types with high VA-contents)

Work range 
-50°C to +40°C

Chemical resistance 
EVA is resistant to: 
- almost all organic solvents and chemicals 
- thermal hydrolysis 
EVA is not resistant to: 
- highly oxidizing chemicals (nitric acid, oleum and halogens) 
- most chemicals at temperatures > 60°C

UV and weather resistance 
EVA is not resistant to UV, but can be stabilised by additives.

Flame resistance 
EVA is easily inflammable and burns readily.

Food contact 
EVA is applicable for food contact. Types approved according to European regulations are available.

 

PP (POLYPROPYLENE)

 

PP belongs to the group of thermoplastic materials (commodities) known as polyolefines. They also include LDPE, HDPE and EVA.

PP has more rigidity than HDPE and unlike HDPE it maintains its mechanical properties at high temperatures. PP has a good balance between thermal, chemical and mechanical properties resulting in a versatile product with numerous applications.

We usually divide PP into 3 main groups:

  • PP-H (homopolymers) 
  • PP-C (copolymers with 2-5% ethylene) 
  • PP-R (Random copolymers) 

PP-H, which forms the major part of the world's consumption, is more rigid than the other types of PP. PP-H can be used at higher temperatures than PP-C, but should not be used at temperatures < 0°C due to poor impact strength. The natural colour of PP-H is milk-white. It is commercially available in filled types with chalk, glass and other fillers.

PP-C, which forms approximately 20% of the world's consumption, is more transparent, tougher and flexible, but has a lower temperature resistance than PP-H. Is likewise commercially available in filled types with chalk, glass and other fillers.

PP-R is the most transparent type, but also the most costly and it is mainly used for packaging.

PP is a low cost material which is widely used in both heavy, food and medical industries due to its fine mechanical and chemical properties within a particular temperature range.

Characteristics 
- good mechanical properties 
- high fatigue strength 
- low (no) water absorption 
- fine barrier against water and moisture 
- well suited for contact to foods 
- good resistance to chemicals at temperatures < 60°C 
- resistant to thermal hydrolysis 
- limited usage at temperatures < 0°C  
- limited UV-resistance (requires stabilisation)

Work range 
0°C to +70°C (limited usage under 0°C)

Chemical resistance 
PP is resistant to: 
- most aqueous solutions of salts, acids and bases plus alcohol and some oils 
PP is not resistant to: 
- oxidising chemicals (nitric acid, oleum and halogens) also hydrocarbons which causes swelling 
- most chemicals at temperatures > 60°C.

UV and weather resistance 
PP is not resistant to UV, but can be stabilised by additives.

Flame resistance 
PP is easily inflammable and burns readily.

Food contact 
PP is applicable for food contact. Types approved by the FDA and European regulations are available.

Others

POM (POLYOXYMETHYLENE)

 

POM consists of partly crystalline thermoplastics. In POM a number of properties are combined such as rigidness, hardness, strength and stability in form and dimension at high temperatures. POM is available both as homopolymers and copolymers.

POM is widely used for items in which good mechanical properties are required combined with low friction and high durability, e.g. for gear wheels, slide bearings and rails.

Characteristics 
- good combination of strength, rigidness and hardness 
- low friction and high durability 
- warmth resistant 
- dimensional stability 
- fine chemical resistance 
- easy to clean

Work range 
Max. 100°C in air and 80°C in water for copolymers. 
Max 85°C in air and 60°C in water for homopolymers.

Chemical resistance 
POM is resistant to: 
- most hydrocarbons and bases 
POM is not resistant to: 
- acids 
- thermal hydrolysis (water > 60°C for homopolymers and > 80°C for copolymers).

UV and weather resistance 
POM is not UV-stable, but can be stabilised with e.g. carbon black.

Flame resistance 
POM is less flame resistant than e.g. PA and PET. POM smells of formaldehyde when burned.

Food contact 
FDA approved versions are available. Please be aware that POM might contain free formaldehyde.

 

PC (POLYCARBONATE)

 

PC is an amorphous thermoplastics which is very impact resistant bordering to brake-proof. PC can resist both low and high temperatures and does not turn brittle or soft exposed to coldness or warmth, accordingly, within a relatively wide temperature range.

PC is naturally transparent.

Among other things PC is used for light fixtures and containers for water, oil and some chemicals.

Characteristics 
- extremely high impact toughness, even at low temperatures 
- dimensionally stable and heat resistant 
- transparent (light transmission 85-90%) 
- fine insulating ability 
- high rate of rigidity 
- usually better impact strength than PMMA 
- good resistance to pressure

Work range 
Max. 120°C (max. 60°C warm water)

Chemical resistance 
PC is resistant to: 
- water at temperatures <60°C. Temperatures higher than that will attack and break down PC (thermal hydrolysis) 
- diluted acids, standard oil products, alcohol and aliphatic hydrocarbons 
PC is not resistant to: 
- strong solvents and bases (e.g. chlorine)

UV and weather resistance 
Long-term UV-exposure will effect PC, but stabilised versions are available.

Flame resistance 
Limited resistance without fire-retarding additives.

Food contact 
FDA approved versions are available.

 

CELLULOSE

 

Celluloid plastics form a group of amorphous thermoplastics, in which the 3 most important types are:

  • CA (cellulose acetat) 
  • CAB (cellulose acetat butyrat) 
  • CAP (cellulose acetat propionat) 

They are all easy to process, have high transparency, good colouring potential and a high rate of rigidity and toughness. CAB and CAP have better dimensional stability and are tougher than CA. CAP surpasses CAB when it comes to hardness, tensile strength and rigidity.

Few plastics offer the same wide spectrum of appearances as the celluloid plastics. They are available in an almost endless spread of colours both transparent and opaque with effects of mother of pearl, metal or multi-coloured surfaces.

Characteristics 
- good combination of strength, rigidity and hardness 
- very tough 
- heat resistant dependent on type 
- dimensional stability 
- acceptable chemical resistance

Work range 
-50°C to 60-115°C (dependent on type). CA becomes brittle at temperatures < 0°C.

Chemical resistance 
The celluloid plastics dissolve or swell when exposed to a number of solvents such as alcohol, esters, ketones, aromatic and chlorinated hydro carbon and strong acids and bases.

UV- and weather resistance 
CA is not UV-stable, but can be stabilised with e.g. carbon black.

Flame resistance 
The colluloid plastics are easily inflammable.

Food contact 
Types approved for food contact are available.

 

PSU (POLYSULFONE)

 

PSU is an amorphous thermoplastics, slightly yellow, but still transparent. PSU is widely used for medical products and in the food industry.

Characteristics 
- good strength and rigidness 
- heat resistant 
- good chemical resistance 
- resistant to thermal hydrolysis 
- resistant to repeated sterilisations

Work range 
-100°C to 150°C (max. 140°C in steam). 

Chemical resistance 
PSU is resistant to: 
- acids, bases, salt solutions, mineral oils and a number of cleaning agents and detergents even at high temperatures. 
PSU is not resistant to: 
- organic solvents like ketones and chlorided and aromatic hydrocarbons.

UV and weather resistance 
PSU is sensitive to sunlight, but can be stabilised with e.g. carbon black. PSU is not affected by gamma and x-rays.

Flame resistance 
Good resistance.

Food contact 
FDA approved types are available.

 

PVC (POLYVINYLCHLORIDE)

 

PVC is amorphous and therefore a transparent thermoplastics. PVC is produced as homopolymers or as compound and by means of additives it is possible to achieve an almost unlimited quantity of properties.

Hard PVC is characterised by its strength and outstanding chemical resistance. Due to the vast possibilities for variation of the PVC-compound the spectrum of variations in properties is very wide.

Mutual for all PVC-types is their relatively poor heat resistance.

Characteristics 
Dependent on type

Work area 
~ 0°C to 50-70°C (dependent on additives).

Chemical resistance 
PVC is resistant to: 
- most acids and bases and a number of other chemicals 
PVC is not resistant to: 
- solutions

UV and weather resistance 
PVC is not weather resistant, but it is possible to stabilise it with additives in order to improve this feature.

Flame resistance 
Dependent on type

Food contact 
-

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Kunststoffabrik
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