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For highly wear-resistant or rigid seals, industry uses presses and very strong, thick silicones, but with pourable silicones professional users and hobbyists can often achieve the desired results too.

If you work in a dirty environment and the seal is replaced every year, you can use condensation-cure silicones. If the seal needs to last longer and you can make it in a clean environment, we recommend addition-cure silicones.

Silicones are relatively permeable to gas and air and are therefore not suitable for gas seals.
For questions about the resistance of silicones to specific substances, please contact us at info@siliconesandmore.com.