Neoprene Profile
Description
Neoprene or Poly-Chloroprene is a family of synthetic rubbers that are produced by polymerization of chloroprene. Neoprene in general has good chemical stability, and maintains flexibility over a wide temperature range.
Features Benefits and Applications
Its wide range of products are extruded as well as molded products e.g automotive seals, laptop sleeves, orthopedic braces (wrist, knee, etc.), applied elastomeric membranes or flashings and electrical insulation, liquid and sheet applied elastomeric membranes or flashings, and car fan belts. A foamed neoprene containing gas cells is used as an insulation material, most notably in wetsuits. Foamed neoprene is also used in other insulation and shock-protection (packing) applications.Quality and Standards
IRC produces various extruded and moulded neoprene rubber products for automotive and industrial applications following various international test standards e.g. ASTM D-412 and BS 5400 Standards. It has a good weathering resistance, flame retarding and moderate resistance to petroleum based fluids. It is also resistance to Ozone, Chemicals, acids, Oils, fats, greases and solvents.
General Physical Properties- Bearing Pad: ASTM Standard
| Properties | Specifications | Test Method |
|---|---|---|
| Hardness (Shore A) | 50 ± 5 | ASTM D-2240 |
| Tensile Strength (Mpa) | 17.0 Min | ASTM D-412 |
| Elongation Break % | 350 Min | ASTM D-412 |
| Heat Ageing, 70 hrs @ 100° C Change in Hardness, points Change in Tensile Strength, % Change in Elongation,% |
0 to +15 -/+ 15 Max 40 Max |
ASTM-D-573 ASTM D-2240 ASTM D-412 ASTM D-412 |
| Compression Set - 22 Hours at 70° C | 25% Max | ASTM D-395 |
| Ozone Resistance 20% Stretch 40° C 100 PPHM 100 Hrs | No visible cracks | ASTM D-1149 |
| Tear test (Pounds/Lin .in minimum) | 45 kg/cm | ASTM D-624 |
General Physical Properties – Bearing Pad: BS Standard
| Properties | Specifications | Test Method |
|---|---|---|
| Hardness (Shore A) | 60 ± 5 | BS903, Part A26 |
| Tensile Strength (Mpa) | 15.5 Min | BS903, Part-A2 |
| Elongation Break % | 350 Min | BS903, Part-A2 |
| Heat Ageing, 70 hrs @ 100° C Change in Hardness, points Change in Tensile Strength, % Change in Elongation,% |
+ 15 Max + 15 Max + 40 Max |
BS903 Part A19 BS903, Part A26 BS903, Part-A2 BS903, Part-A2 |
| Compression Set - 22 Hours at 100° C | 35% Max | BS903, Part-A6 |
| Ozone Resistance 20% Stretch 30° C 25 PPHM 96 Hrs | No visible cracks | BS903, Part-A43 |
| Low Temperature Crystallization Compression Set; 10 days @ -10°C, % Compression Ser, 3 days @ -25°C, % |
65 Max 65 Max |
BS903 Part A39 |
| Properties | Specifications | Test Method |
|---|---|---|
| Hardness (Shore A) | 70 ± 5 | BS903, Part A26 |
| Tensile Strength (Mpa) | 10.5 Min | BS 903, Part-A2 |
| Elongation Break % | 350 Min | BS 903, Part-A2 |
| Tensile Change % | 15 Max | BS 903, Part A2 |
| Elongation Change % | 40 Max | BS 903 Part A2 |
| Compression Set - 22 Hours at 100° C | 25% Max | BS 903, Part-A6 |
| Low Temperature Flexibility | Should be flexible at -40°C | |
| Maximum Working Temperature | 125°C | |
| Fire Resistance | Excellent | |
| Oil Resistance | Good |