Acid bubbles above waterline.

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Posted by Ron Visser on March 31, 2000 at 01:52:26:

I have just purchased a 45ft. monohull Cape Vickers sailing yacht in Richards Bay, South Africa. Apparently this yacht was built with GRP and no gelcoat, as Kevlar was also used in the construction. The boat is 9 years old and and has formed a lot of acidic bubbles, approximately 10mm in diameter and 50 per square meter, above the waterline under the Latex paint coat. It does not seem to have affected the laminate layers.(however not sure)

A professional boatyard in Durban, South Africa is effecting repairs and has sanded the Latex paint coat down to the laminate level. They have suggested to refill with epoxy and to use a cheaper paint from the automotive industry in order to effect DIY bubble maintenance.

The surveyor could not confirm if the were any of the bubbles below the waterline.

This yacht will not be used for racing and I am planning to go bluewater cruising for the next 8 to 9 years.

Two questions arise:

1) Acidic bubbles above the water-line?

2) Automotive paint?

Your advice on this matter will be greatly appreciated.

Ron Visser
S.Y. Akela
Cape Town
South Africa

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