Where to buy Hengs roof coating

I would not use that stuff. It turns hard as a rock and cracks, like murder to get it off and redo in the future.

My NL camper was redone several years ago using Sono Last caulking.

I blue taped a nice square masking and spread the caulk all over the Hengs. It's rubber, very durable, stays flexible and coats very well. Remember to work into the surface going both directions after cleaning with lacquere thinner first. Very easy to spread with a stiff throw away brush. Brush can be made stiffer by cutting bristles or brush hair shorter length.

Why not use EternaBond tape instead?

rlb8s wrote:
Why not use EternaBond tape instead?

X2. Good product and lasts a long time.

If you guys saw this SonoLast job I did you wouldn't believe how nice it looks and wouldn't believe its that tough and still like rubber after 5/6 years.

problem with the tape is that the old Hengs is on thick and has divets and low spots. Tape does not like compounded bends/folds nor can fill voids.

How about this stuff? Kool Seal White Elastomeric Roof Coating. Its easily available locally but doesn't mention fiberglass in its list of suitable surfaces.