Re: The proper way to wet sand a Gel coat hull Vinegar is an excellent mild solvent. It will not damage the gelcoat and it will remove any of the sanding dust particles on the boat. Acetone could be used I guess, but not recommended because it can deteriorate the gelcoat and effect the resins in the hull. How to wetsan cut and buff a gel-coat boat. In a five gallon bucket, I put about gallons of water, a few drops of dish washing soap, and my sand paper.
I also kept the hose handy. However, if the rubbing compound is getting you nowhere (try a test patch), and after washing the rubbed area, the oxidation is still visible, it’s time to wet - sand the hull. Assuming, of course, you’ve got enough gelcoat to sand. Follow the wet sand with a fast-cut, coarse-grit rubbing compound. Wet sanding gel coat General Discussion.
Like has been said before, go with the least aggressive first! I second the polisher with good compound route. Part covers wet sanding.
Anyway, my friend and I prepped it and sprayed black gelcoat on it and I block sande wet sanded and buffed it out. In this video we show step by step how to wetsand and polish (buff) the oxidation out of a boat. Confining work to the immediate repair area, continue wet - sanding with 600-grit paper until nearly even with surrounding gelcoat.
Whenever I wet sand by hand I ALWAYS use a pad or sanding block underneath the sandpaper. The choice depends on what is being sanded. The danger in both wet sanding and power buffing is going through the gel coat (or paint). In my experience this usually happens on an edge, for example a chine.
When you pick your boat up from him the gel coat will look brand new. Over waxing increase the suns uv rays to burn the pigment out of the gel coat color or even paint. I was told waxing is good for helping the dirt wash off period. Spray furniture polish all over the boat its almost the same stuff.
I have just lifted my boat out for winter storage and am going to use this time to work on so bad scratches on the gel coat. I was just wondering have any of you guys any tips on the wet sanding thing. Sand with grit, clean, then go over top of that with the. Sanding And Finishing Gelcoat. REPAIR OF GELCOAT AND OTHER SECRETS OF MAINTAINING YOUR BOATS FINISH FOUND ON WWW.
The purpose of the grits in wet sanding is speed. Gelcoat is an epoxy or resin-based compound that is used to line the molds when making fiberglass components. This process releases any air pockets from the gelcoat that would cause problems when sanding and painting.
If the gelcoat scratches aren’t too deep, you may be able to eliminate them with a combination of wet - sanding and compounding. M makes a variety of products used by the pros. If the scratches are deep, you’ll need to know where to get the right gelcoat for your boat. As some of our team moved around the hull wet sanding some of the rest of followed by removing the. Grit on a power sander will go through the gel coat is nothing flat.
The gel coat is extremely thin, typically 0to. You can pick up a gel coat kit and try to color match the spot. West Marine will have kits and you can find them on the internet. Restoring Gelcoat Finish The old fashioned way!
Use increasingly lighter grit wet sanding papers to get rid of the previous grit sanding marks. Use the 4grit paper, keeping it and the dried Gelcoat wet , to bring out a high-luster finish. Go from wet sanding to a compound (more than one grit of compound may be needed depending on how deep the sanding scratches go into the gelcoat ), then apply a polish to remove swirl marks and finally an application of wax and the boat should shine like new.
The wet sanding process is simply expediting the time presumably it takes to get to good gel coat. It is simply a matter of the removal process. Many years ago a production company came to me with a problem to resolve.
Clean the hull and other parts of your boat or RV which you intend to treat with Feldten-Marine Gelcoat Sealer. If you have very heavy oxidation, remove as much as possible before starting your treatment(e.g. wet sanding ) 2. I am therefore thinking of using Abralon wet sanding pads and try and restore the gelcoat to new shape. The light gray is easier to hold than the darker colors, so this should hold a new years.
All the cut debris in solution with water ends up on the floor. This is difficult to sweep up when dry. But the advantage, as mentioned before, is that wet sanding produces no dust.
Much of the quality of a final finish is in surface preparation. Price to have gel coat restored? I was quoted 2k to wet sand , then different products with the buffer.
Do not sand ( wet or dry) the gel coat. Colored Metalflake is only coated with the color.
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