Notice:
The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.
Heres a link to a google doc with some pictures and questions about the bottom job Im doing. I am sanding the bottom but came across a few types of defects, nothing major. Just trying to figure out the best way to fix them. I am painting and have painted the bottom three times with Micron CSC and Im doing it again but I have few defects I need advice on.
Take a look. I tried posting this way. If it doesnt work Ill upload the pics. Let me know.
5 L A T E S T R E P L I E S (Newest First)
Captmorgan
Posted - 04/14/2020 : 20:58:27 i ended up putting interlux watertight epoxy as a primer on places that I sanded down to gel coat. There was a sopt then went to fiber glass. small hole so I sanded and then used watertight interlux epoxy.
I pull it out every other year well see how it holds up. Ill put two coats of bottom pnt cdc micron over those too.
Voyager
Posted - 04/08/2020 : 11:37:38 In rough spots on my 2020 bottom painting, I used that exact doohickey plus a sheet of 80grit sandpaper over the top. Elsewhere, just the rough sponge. Using a flexible backing on the sandpaper prevented overly scraping and digging into the surface.
Captmorgan
Posted - 04/08/2020 : 11:26:36 Thanks alot for the advice.
I will do that. I actually used a scrubber like the one you showed too.
That was useful also. Thanks again This support group is excellent.
I makes me want to keep my boat but I would like to go to a 34 ish
Get the head room and more comfortable overnights!
islander
Posted - 04/08/2020 : 07:07:11 Smooth the chips like in the second photo then I would use a paint brush to apply bottom paint over the sanded chip spots then when those spots dry I would go ahead and paint the entire bottom. Do this after you roughen the entire bottom with 80 grit sandpaper.
Steve Milby
Posted - 04/08/2020 : 05:28:33 When did you last paint it? How many coats did you apply?
When you build up too many layers of antifouling paint, it begins to peel, and eventually you need to strip it off and start over. That's a big, nasty job that you'll want to avoid. So, one coat of Micron CSC per year is usually enough. I have occasionally gone two seasons without re-painting. Micron CSC is a good quality ablative paint. It gradually sloughs off, and consequently it builds up slowly. Your paint appears to be just beginning to peel, so you can defer stripping it for a few years if you don't build it up too fast.
I just looked up the application instructions for Micron CSC, and the instructions do not require a primer over bare fiberglass. It only recommends two coats of CSC. Looking at your photos, I'd scrub the bottom lightly with clear water. I use this type of scrubber.
After scrubbing it, if last year's paint looks good and there are no barnacles, I'd probably apply two coats over the bare spot and launch the boat, and plan on applying one coat over all next year.
Notice: The advice given on this site is based upon individual or quoted experience, yours may differ. The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.