Product Introduction:
High temperature resistant molded silicone rubber is a special high-temperature product used for molding, which is easy to open, color, and process. Good resilience after vulcanization, low compression permanent deformation, and good physical and mechanical properties.
This silicone rubber has excellent resistance to high and low temperatures, ozone, high temperature service life, and mechanical strength at high temperatures. Its heat resistance in air is much better than that of general silicone rubber. Its physical properties remain basically unchanged when used at -60 ° C to 300 ° C, and it can be used semi permanently.
Product application:
Widely used in the production of various electronic appliances, mechanical equipment accessories, mobile phone and computer covers, sealing gaskets, tableware, kitchenware, watch straps, wallets, lampshades, and baby products.
Technical sheet:
| Pertormance | 630R | 640R | 650R | 660R | 670R | 680R | |
| Before Vulcanization | Appearance | light yellow | light yellow | light yellow | light yellow | light yellow | light yellow |
| Specific Gravity (25℃) (±0.03) | 1.1 | 1.12 | 1.15 | 1.17 | 1.2 | 1.22 | |
| Williams Plasticity (±20) | 140 | 160 | 190 | 240 | 280 | 300 | |
| Vulcanizing Agent | Name | C-14 | C-14 | C-14 | C-14 | C-14 | C-14 |
| Dosage (phr) | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | |
| After Vulcanization | Hardness (Shore A) (±3) | 30 | 40 | 50 | 60 | 70 | 80 |
| Tensile Strength / MPa (≥) | 6 | 7 | 7.5 | 7 | 6.5 | 6 | |
| Elongation at Break / % (≥) | 700 | 550 | 500 | 380 | 300 | 200 | |
| Tear Strength / KN/m (≥) | 15 | 16 | 17 | 16 | 15 | 12 | |
| Resilience / % (≥) | 45 | 50 | 50 | 45 | 43 | 40 | |
● Physical data in the above table is for reference only.
● Sulfurization conditions: 175 ℃ for 5 minutes, with a liquid vulcanizing agent addition ratio of 0.65%, mainly composed of 2,5-dimethyl-2,5-di (tert butylperoxy) hexane.
●The supplied test report is obtained by the Quality Inspection Department with the curing conditions and testing method of the company; due to the difference of curing conditions and testing method, we can't guarantee that both parties obtain the same testing result, and we suggest that users should use the test data obtained under their own testing conditions as the reference for service performance. All the above performance data and application recommendations are only a reference for use on the service performance of product, instead of a guarantee on the effectiveness or general applicability of our products under a certain application.
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