Originally Posted by rgesner
It's an older fiberglass boat with epoxy
barrier coat and 2-3 coats of well worn Micron CSC ablative, with which the Pettit SR 40 is reportedly compatible.
Thanks everyone for all the info.
Here's what I do for this type of bottom.
(CAUTION: When working near spent airborne particulate or fresh liguid antifouling paint, where disposable nitrile gloves, taped at wrists to disposable Tyvek hooded coveralls, with a proper fitting organic respirator and face shield. Follow manufacturers directions and hazardous materials handling and disposal practices.)
1. If old CSC is flaking off in patches, it was not applied properly, remove it all, else proceed to step 2.
2. Wash with water
off anything left on after the last power wash.
3. Mask waterline with 3M auto refinishing tape. (Sticks much better than cheap
painters tape and leaves less residue.)
4. Scour with 3M pad.
5. Vacuum excess dust away from surface.
6. Wipe remaining dust with water
wet and dry rags (2 rag method.)
6. Apply anti-fouling
In my opinion, the roller nap has less to do with WFT than pressure and roll out.
If you possibly can, stick with CSC rather than switching. CSC is great paint, and if applied properly, has the lowest lifecycle cost of any retail Interlux anti-fouling
Full Disclosure: I sell and apply Interlux
and 3M products. This post is offered as free advice and not intended to solicit business.
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