I painted the exposed fiberglass in my sailboat cabin with West Marine's linear polyurethane paint designed for the exterior topside of a boat. It is too white and I want to paint it a semi gloss almond color. I found some at Home Depot which is an oil based enamel type exterior paint. Do you know if I can paint over the polyurethane linear paint with this? Remember, it is inside and will be protected from the elements. The surface is NOT smooth but irregular and somewhat rough. Please tell me it can be done. Help.
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Why not paint it again with some color?
Rick: Why don't you get some more of the original paint and tint it?
Rick: Why don't you get some more of the original paint and tint it?
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Rick
Great idea. thanks
I hadn't even thought of tinting my original paint. Duh. Do I feel stupid now or what. Thanks for your input guys.
I hadn't even thought of tinting my original paint. Duh. Do I feel stupid now or what. Thanks for your input guys.
Cabin paint
for compatibility, call the help desk for technical advice at 800 BOATING; they will probably have to ask the manufacturer and get back to you. I agree that its probably better to tint/mix the same paint. There may be an off-white color thats close to what you want, and you could add some flattening agent to dull the shine. I also seem to remember an interior white from Interlux. If you mix colors, you might want to keep track of the ratio in case you need to match it in the future.
for compatibility, call the help desk for technical advice at 800 BOATING; they will probably have to ask the manufacturer and get back to you. I agree that its probably better to tint/mix the same paint. There may be an off-white color thats close to what you want, and you could add some flattening agent to dull the shine. I also seem to remember an interior white from Interlux. If you mix colors, you might want to keep track of the ratio in case you need to match it in the future.
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Paul
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Steve M
Alkyd enamel
Don Casey, in his book 'This Old Boat', suggests Alkyd enamel from a home improvement or hardware store. It's the same as 'Marine' alkyd enamel, but half the price. Easy to apply, flows smoothly and lasts a long time.
Don Casey, in his book 'This Old Boat', suggests Alkyd enamel from a home improvement or hardware store. It's the same as 'Marine' alkyd enamel, but half the price. Easy to apply, flows smoothly and lasts a long time.
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Bill
Linear Polyurethane paints
Linear Polyurethane paints (like Awlgrip) is a very hard, durable paint and most other types of paint can be painted on top of it without problem. Linear Poly paints themselves, however, are quite aggressive & cannot be applied over other types of paint without problems, so you must, after proper preparation (sanding and cleaning) apply an epoxy primer over the original paint surface before applying the poly paint. Always stick with the recommended primer that the manufacturer suggests with the product you are using. In the case of Awlgrip it is their 545 epoxy primer which is two part 1:1. Linear polyurethane paint lasts longer than any other type of paint. It has the best color retention, abrasion resistance & gloss. If you make a mistake (sag) they can be repaired within a few days of the paint job (wet sanded and buffed out) without much problem (use the proper sandpaper and compounds - for paint - not fiberglass - refer to Awlgrip data). Softer linear polyurethane paints like Awlcraft are designed to be repairable at later dates. They do lose some of the advantages of Awlgrip, but still are the best paint around. Of course, they are the most expensive too. For a lower gloss look you can add a flattening agent to your paint mix to reduce the shine or make it flat depending on how much agent you mix in. This is particularly good for the nonskid surface of boats as decks with no flattening agent in are slippery when wet even if you add a grit to the paint. Awlgrip and other types of linear poly paints are not guaranteed below the waterline. They will blister on a daysailor that stays in the water constantly. They are great for waterlines and topsides (hull sides) or decks, but must be above the waterline. Epoxy paints are better for a no blister surface, but epoxy does not hold up to sunlight and degrades (oxidizes) rapidly. If possible use epoxy below the waterline or antifouling paint. I suggest you stick with marine paints & not Home Depot type paints unless you have a boat that is not worth much and you are not particular about longevity or boat beauty. Good luck.
Linear Polyurethane paints (like Awlgrip) is a very hard, durable paint and most other types of paint can be painted on top of it without problem. Linear Poly paints themselves, however, are quite aggressive & cannot be applied over other types of paint without problems, so you must, after proper preparation (sanding and cleaning) apply an epoxy primer over the original paint surface before applying the poly paint. Always stick with the recommended primer that the manufacturer suggests with the product you are using. In the case of Awlgrip it is their 545 epoxy primer which is two part 1:1. Linear polyurethane paint lasts longer than any other type of paint. It has the best color retention, abrasion resistance & gloss. If you make a mistake (sag) they can be repaired within a few days of the paint job (wet sanded and buffed out) without much problem (use the proper sandpaper and compounds - for paint - not fiberglass - refer to Awlgrip data). Softer linear polyurethane paints like Awlcraft are designed to be repairable at later dates. They do lose some of the advantages of Awlgrip, but still are the best paint around. Of course, they are the most expensive too. For a lower gloss look you can add a flattening agent to your paint mix to reduce the shine or make it flat depending on how much agent you mix in. This is particularly good for the nonskid surface of boats as decks with no flattening agent in are slippery when wet even if you add a grit to the paint. Awlgrip and other types of linear poly paints are not guaranteed below the waterline. They will blister on a daysailor that stays in the water constantly. They are great for waterlines and topsides (hull sides) or decks, but must be above the waterline. Epoxy paints are better for a no blister surface, but epoxy does not hold up to sunlight and degrades (oxidizes) rapidly. If possible use epoxy below the waterline or antifouling paint. I suggest you stick with marine paints & not Home Depot type paints unless you have a boat that is not worth much and you are not particular about longevity or boat beauty. Good luck.
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