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Common problem

Q:
What is the effect of adding mineral oil to silicone weather-proofing sealant?
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A:
After a period of time, the mineral oil will migrate out of the silicone weather-proofing sealant, cause the sealant become hard and start powdering and cracking.
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Q:
Can the EPDM strip be compatible with silicone structural sealants?
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A:
A compatibility test is required to do, generally EPDM strip without mineral oil can be compatible with a good quality silicone structural sealants.
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Q:
What is the reason for neutral translucent silicone sealant yellowing?
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A:
The reason mainly is: The contact surface between the silicone sealant and the rubber strip (such as inferior EPDM rubber and neoprene) turns yellow; the oxime-based silicone sealant turns yellow overall in an acidic environment.
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Q:
Why is the same grade of silicone sealant, there are more granules in colorful silicone sealant than transparent one?
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A:
Because the colorful silicone sealants add the pigment. However the appearance of good quality sealants are even and delicate. They have no differences.
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Q:
Is 804 resin a silicone adhesive? How to extend its service time?
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A:
The 804 resin on the market is the name of other manufacturers' products, all of which are epoxy or acrylic resins, not organic silicone adhesives. We can extend the service time according to the principle of resin chemical reaction.
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