Materials Processed
UPVC (Rigid PVC)
The most widely used rigid material in extrusion for it’s ease of processing and relative cheapness. There are a wide variety of grades available for all types of applications including outdoor, non toxic and clear. We offer a carbon free grade for use on radomes.
| Physical Properties |
| Tensile Strength |
2.60 |
N/mm² |
| Notched Impact Strength |
2.0 - 45 |
Kj/m² |
| Thermal Coefficient of expansion |
80 |
x 10 -6 |
| Max Cont Use Temp |
60 |
oC |
| Density |
1.38 - 1.42 |
g/cm 3 |
PVC (flexible PVC)
The cheapest alternative for flexible profiles. Available in a wide variety of grades from soft to semi rigid. Easily coloured to specification but also available in clear or natural. Often used in hoses, tubes, seals, edgings and trims, and can be used in conjunction with rigid PVC to form dual hardness profiles.
ABS
Rigid material with good temperature performances (high and low). Has excellent surface finish and colour (mainly indoor use). More expensive than PVC, often used in domestic appliances, housings and tubes for water applications. Fire retardant grades available.
| Physical Properties |
| Tensile Strength |
40-50 |
N/mm² |
| Notched Impact Strength |
10 - 20 |
Kj/m² |
| Thermal Coefficient of expansion |
70 - 90 |
x 10 -6 |
| Max Cont Use Temp |
80 - 95 |
oC |
| Density |
1.0 |
g/cm 3 |
PS and HIPS (high impact polystyrene)
HIPS is mainly used indoors on point of sale with mid range pricing and has good impact strength. For clear applications we can also offer general purpose polystyrene for use on light diffusers for example but it tends to be brittle.
| Physical Properties HIPS |
| Tensile Strength |
2.20 - 2.70 |
N/mm² |
| Notched Impact Strength |
10.0 - 20.0 |
Kj/m² |
| Thermal Coefficient of expansion |
80 |
x 10 -6 |
| Max Cont Use Temp |
60 - 80 |
oC |
| Density |
1.0 |
g/cm 3 |
POLYCARBONATE
Very rigid and strong with good high temperature performance but at relatively high cost. Often used in light diffusers and in vandal proof situations. Clear and colours available.
| Physical Properties |
| Tensile Strength |
70 - 80 |
N/mm² |
| Notched Impact Strength |
60 - 80 |
Kj/m² |
| Thermal Coefficient of expansion |
65 |
x 10 -6 |
| Max Cont Use Temp |
125 |
oC |
| Density |
1.20 |
g/cm 3 |
POLYETHYLENE (high and low density)
Semi rigid with waxy finish, HDPE is good for outdoor uses and has good low temperature performance and chemical resistance. Often used in tubing and packaging applications. Translucent only.
| Physical Properties |
| Tensile Strength |
0.20 - 0.40 |
N/mm² |
| Notched Impact Strength |
no break |
Kj/m² |
| Thermal Coefficient of expansion |
100 - 220 |
x 10 -6 |
| Max Cont Use Temp |
65 |
oC |
| Density |
0.95 |
g/cm 3 |
POLYPROPYLENE (PP)
Similar in feel to HDPE, this is a very tough material mainly for indoor use. Has a good high temperature performance. Often used in hinges and tubing.
| Physical Properties |
| Tensile Strength |
0.95 - 1.30 |
N/mm² |
| Notched Impact Strength |
3.0 - 30.0 |
Kj/m² |
| Thermal Coefficient of expansion |
100 - 150 |
x 10 -6 |
| Max Cont Use Temp |
80 |
oC |
| Density |
0.9 |
g/cm 3 |
Others include
1] PETG -- for high clarity tubing and ticketing applications
2] Noryl -- electrical applications
3] PC / ABS blends -- high cost / high performance materials
4] Acrylic -- for high clarity tubing and ticketing
5] Nylon 6 -- small tubes and rods only
Please note that the information given above is for general purposes only and is not a definitive reference guide. Specification sheets for individual grades of material can be submitted on request.
|
