HEAT CURED SILICONE RUBBER IOTA HCR 9170 U
Description: IOTA HCR 9170 U is a silicone master-batch, heat curing after the addition of a vulcanizing agent (chosen according to the processing method).
Applications: IOTA HCR 9170 U is recommended for moulding, has good compromise of mechanical properties.
Special properties:
Good processability, non-stick rollers, easy release;
Good appearance, transparent, anti-yellowing;
Good mechanical properties;
Good thermal stability, up to 200℃
Not easy to structured after long-term storage;
Characteristics
Type (in accordance with GB/T 5576-1997) ………………………………………… VMQ
Density at 25°C, g/cm3, approx………………………………………………………… 1.19
Natural color……………………………………………………………………… translucent
Properties after working：
After addition of 1.0% 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane (at 45%), and vulcanization for 10 minutes at 170℃。
Typical Properties：
1 Properties after a vulcanization
Shore A hardness, approx………………………………………………………… 70
Tensile strength, MPa, approx…………………………………………………… 8.9
Elongation at break, %, approx…………………………………………………. 335
Modulus at 100% elongation, MPa, approx…………………………………. 3.1
Tear strength, (ASTM D 624 Die B) kN/m, approx……………………………. 31.9
Rebound resilience, %, approx…………………………………………………… 46
2 Properties after post-cure for 4 hours at 200°C
Shore A hardness, approx……………………………………………………… 72
Tensile strength, MPa, approx…………………………………………. ……. 7.9
Elongation at break, %, approx……………………………………………… 290
Modulus at 100% elongation, MPa, approx……………………………… 3.2
Tear strength (ASTM D 624 Die B)，kN/m, approx……………………… 26.6
Rebound resilience, %, approx……………………………………………… 47
Please note: This technical data listed in the table as a typical performance, can not be used as a technical parameter IOTA HCR 9170 U special applications.
Packaging: IOTA HCR 9170 U is delivered in 20 kg carton boxes.
Storage and shelf life: IOTA HCR 9170 U may be stored in its original unopened packaging at a temperature below 40°C for up to 6 months from the date of manufacture marked clearly on the packaging.
Past this date, IOTA no longer guarantees that the product meets the sales specifications.
