Eternabond over sealant?

clean with De-natured alcohol, or acetone

not soap and water

you can wash it first, to get the heavy stuff off

but must clean again with a solvent, before applying the eternabond

no soap or dirt residue on the surface

I bought Eternaprime in a spray can and a hard rubber roller. I applied it over 15 year's of Dicor on my old trailer, did just fine. My suggestion is to clean the roof well to ensure proper adhesion. Don't stretch the material (it loses its ability to adhere when stretched). Apply on a warmer day and use a hard rubber roller. Roll it thoroughly and with force to fully set the adhesive. It'll last longer than your trailer!

If you want to be extra secure, pay to have a pressure test done AFTER you Eternabond it. That way you can be certain you have everything sealed correctly. Good luck!

Ed_Gee wrote:
Eternabond must be applied to a completely clean surface. Results would likely be unreliable trying to do as you suggestm.

Not if it is cleaned properly first as already mentioned I did that on my trailer about 12 years ago and it has held up fine.
Barney

SB fine unless you used self leveling silicone which Eternabond doesn't like.

Eternabond will stick just fine to Dicor. Clean the surface first, and use a roller to press it down.

I cleaned and inspected the Dicor sealant prior to applying the Eternabond. This stuff is very pliable and will completely seal over the uneven surfaces of the dicor.

When I did our front and rear caps I applied it over the existing Dicor. I did clean the area well before applying but did not see the need to remove what would be covered up.

Eternabond must be applied to a completely clean surface. Results would likely be unreliable trying to do as you suggest.