Hard, messy work....but worth it.
I used Peel Away I on 36C&C. Found that I had to 'pace' myself as the removal required the putty knife to free the loose stuff...then a water hose and Scotch pad and VERY LIBERAL amounts of elbow grease to finish antifoul removal to (apparent) barrier coat. Several 'up' things happened....due to the use of P.A. 1 versus P.A.-7 I did not remove the barrier coat that I didn't know was there, (I think the #7 would have taken it)....I didn't spread toxic dust over my back yard or my neighbors sanding off the two layers of hard red antifoul. I am uncertain what affect the Peel Away 7 would have had on faired areas or blister repair....something to ponder. The different batches that I purchased varied from 'mayonaise' consistancy to trying to spread 'ranch dressing' on the bottom....very tough with the thinner stuff to get more on the bottom than on the drop cloth.Suggestions:-Application of only the area that you will be able to remove the next day....found myself too tired to finish an area and couldn't quit. (Leaving it on longer allows drying of paste to 'concrete'.)-Good, long rubber gloves and eye protection...as the first bit of this caustic on your skin will REALLY get your attention....(have a hose w/ nozzle close by).....found I could 'grovel around' under boat in mud with antifoul bibbs & boots pretty well.-My hull came into recommended PH range (<8.5) by the rinse-&-scrub-down, + spray down with white vinegar, + final rinse....( 6.5 ph). Saved purchase of $16. neutralizer.The results were satisfactory...eh, GOOD---but LOTS of work....and would have to think hard about a future replay.