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tim grady
Posted: Aug 15, 2006 01:35 PM
On an existing spf roof, how do you tell if it has an existing silicone, or acrylic coating?
Gerry Wagoner
Posted: Aug 20, 2006 11:04 AM
experience. Silicone has a soft rubbery feel and will pick up dirt that scrapes away with a fingernail.
Aaron Scurlock
Posted: Aug 21, 2006 02:33 PM
So then how do you go about re-coating the silicone, guys?

Was anyone using aromatic polyureas as a topcoat back in the early 90's?

I looked at a roof today that had a black rubbery coating, SPF'ed in 1992.

Also looked at another today that had an aluminum rubbery coating roller-applied about two years ago. Any ideas?

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