Total Eternabond Failure!
In October I Eternabonded one roof seam down over to the side rain gutter, and also the roof/front cap junction. Two days layer I covered the roof and put my trailer to bed for the winter. Yesterday I...
Forum Discussion
solismaris wrote:
While I did clean it at least 4 times with acetone, as we know these roofs exude a chalky substance as they age, and how do I know when to stop cleaning?
Yes, "as they age", and this process begins from the day one. 1-2 year old EPDM roof is already shedding a whitish powder when you wash it, even with just a fresh water.
I didn't try Enternabond, but here is how I clean it before applying any adhesive.
I clean/rub it with water first, and then with Methyl alcohol. Acetone evaporates too quickly so it doesn't clean well.
I stop cleaning when a clear Scotch tape (packing tape) doesn't pick up any whitish substance, or almost doesn't. This whitish substance is the paint that is oxidizing and crumbling out with time. Basically, during the cleaning you remove top layer of the paint up to the point when black spiderweb "cracks" start showing up on the white surface (that is, if they were not there before).
