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sil700 (temperature tolerance)
At very low temperatures silicone will stiffen and become ""glass-like"". It will not respond like a rubber at these temperatures and will not react to the stimuli placed upon it i.e. deformation loads will need to increase up to a point where the material may shatter.
Primasil has developed phenyl-based compounds for products in operation in these environments (below the –55°C which general purpose silicone can withstand). These low temperature resistant compounds can be moulded, extruded, or calendered, and offer excellent resistance to temperatures down to –100°C.
Low Temperature Capability
| Durometer Hardness (Shore A) | 30 – 70 |
| Specific Gravity (g/cm3) | 1.15 – 1.22 |
| Tensile Strength (Mpa) | 6 – 8 |
| Elongation (%) | 200 – 550 |
| Tear Strength (N/mm) | 10 – 22 |
| Catalyst type | M / E |
| Compression Set % (22h @ 175°C) | 20 – 45 |
| Approvals | FDA |
| Colours available: All | |
An increasing number of products demand reliable operation in very challenging environments.
High temperature resistant silicone compounds can withstand temperatures of up to 300°C for periods of up to 3weeks.
Temperature peaks above 300°C can be tolerated for very short periods of time but they are not recommended for continuous operation at these temperatures. The effect of high temperatures tends to lead to a hardening and increasing brittleness of the silicone so it loses its elastomeric properties.
High Temperature Capability.
| Durometer Hardness (Shore A) | 40 – 70 |
| Specific Gravity (g/cm3) | 1.1 – 1.2 |
| Tensile Strength (Mpa) | 6.6 – 8 |
| Elongation (%) | 200 – 450 |
| Tear Strength (N/mm) | 12 – 20 |
| Catalyst type | M / E |
| Compression Set % (22h @ 175°C) | 20 – 40 |
| Colours available: All | |
For information regarding Health and Safety, please refer to the Health and Safety Data Sheet available from health&safety@primasil.com