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A few years ago, I made some waterfalls using clear silicone.  Instead of applying it to a plastic bag or wax paper, I applied the silicone directly on white latex paint.  They looked great when I first made them, but after a few years in a hot attic, they are turning yellow.  I’m wondering if my problem is due to the hot attic or due to applying the silicone directly over the paint.  Has anyone else had a problem with yellowing due to heat or direct paint contact?

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Hi we have some water falls here at our club.

 there 4 years old now. An yes ours has yellowed not bad.

 but all glues will yellow in time. weather it's clear silicone or weather it's clear epoxy.

 Hope this helps.

 We found that washing with soap and water. Then give it a light spray with crc helps to keep it looking better.

Hope this helps.

From:

Dow Corning® Silicone Sealants Frequently Asked Questions:

 

Q: Will cured silicone sealants yellow?
Most do not yellow. Some oxime sealants, which contain amines, will yellow and should not be used in places where the yellowing will be seen. Occasionally, other sealants can be discolored by hard coats used on plastics. Some rubbers have plasticizers that will leach out and discolor adjacent, light-colored sealants. 

 

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OGR Publishing, Inc., 1310 Eastside Centre Ct, Ste 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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