catmandoo
Well-Known Member
About 4 .5 years ago I had the gelcoat stripped and replaced in Greece with what I understood to be a Wests system
The old gel coat was manually stripped off Hulls and keels and then washed with acetone . 2 coats West epoxy then applied , filling and sanding between coats with epoxy filler , cleaning with acetone and final faring with Hempel Profiiller 3 coats of EPU Light primer and then two coats of antifoul primer etc
Now 4.5 years later I have some small blisters on the hull which I have ground out 2 months ago and left to dry intending to come back in the spring to fill and fair and paint
I just got hold of the West system guide to gelcoat blisters and now have dilemma because it recommends an overall barrier thickness of 600 microns applied with 6 coats of West System epoxy and I think my original application may be under the minimum with only 2 coats although I don't know what the epoxy filler , the in between faring and the final faring may have contributed to the whole barrier coat
On top of that West's suggests that further barrier coats should be applied every 4 to 5 years which means stripping off the old antifoul work which I did not expect
So what should I do . If I just fill locally this year, will I still need to do a complete epoxy coat next year etc . If I apply barrier cats this year after fill ing will that be sufficient for another 4 to 5 years
Never heard about applying barrier coat every 4 years
any comments?
The old gel coat was manually stripped off Hulls and keels and then washed with acetone . 2 coats West epoxy then applied , filling and sanding between coats with epoxy filler , cleaning with acetone and final faring with Hempel Profiiller 3 coats of EPU Light primer and then two coats of antifoul primer etc
Now 4.5 years later I have some small blisters on the hull which I have ground out 2 months ago and left to dry intending to come back in the spring to fill and fair and paint
I just got hold of the West system guide to gelcoat blisters and now have dilemma because it recommends an overall barrier thickness of 600 microns applied with 6 coats of West System epoxy and I think my original application may be under the minimum with only 2 coats although I don't know what the epoxy filler , the in between faring and the final faring may have contributed to the whole barrier coat
On top of that West's suggests that further barrier coats should be applied every 4 to 5 years which means stripping off the old antifoul work which I did not expect
So what should I do . If I just fill locally this year, will I still need to do a complete epoxy coat next year etc . If I apply barrier cats this year after fill ing will that be sufficient for another 4 to 5 years
Never heard about applying barrier coat every 4 years
any comments?
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