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Author Topic:   Mangrove Stains

Shrdlu posted 12-31-2007 02:06 PM ET (US)
Any suggestions for removing mangrove leaf stains from nonskid? The oxalic acid formulas don't work.
Toilet bowl cleaner?
Brian7son posted 01-02-2008 04:40 PM ET (US)
You may want to clear this with some of the CW Guru's who are more knowledgeable than I before proceeding as it may not be good for your fiberglass. Try a little acetone on a rag. Then immediately wash it off thoroughly with soap and water. My boat is 10 years old and not "showroom". I have done this before and it worked on a few small spots on my deck that I just could not scrub off, no matter what.
Brian
Brian7son posted 01-02-2008 04:46 PM ET (US)
Before you do that, try RustAid. You can but it at Walmart, home depot etc.
L H G posted 01-04-2008 12:24 PM ET (US)
Try Castrol purple bottle "Degreaser", or some of the other purple bottle knock-offs. Best cleaner I have ever used for difficult stains and heavy grease. Oxi-clean may also work, and it is good for vegetable/fruit stains. Chorox makes it in a non-chlorine containing formulation.
Never use Acetone or chlorine bleach on gelcoat if you want to maintain a high gloss.
Tohsgib posted 01-04-2008 01:07 PM ET (US)
For mangrove and oak leaves(resemble wood more than leaf) I use straight bleach, does it without scrubbing. Sure it will strip the wax but so will scrubbing.
Bella con23 posted 01-04-2008 01:23 PM ET (US)
This is an excerpt from the Boston Whaler website -
Fiberglass/Gel Coat Stains and Scratches
Gel Coat and painted surfaces are very resistant to deep stains. Common surface stains can be removed with diluted household detergents, providing these detergents do not contain ammonia or chlorine. Porcelain-cleaning powders are too abrasive and often contain chlorine and ammonia, either of which would permanently discolor the Gel Coat and paint. Alcohol or kerosene can be used for difficult stains but should be washed away promptly with a mild detergent and water. Never use acetone or ketone solvents. Minor scratches and deeper stains which do not penetrate the Gel Coat may be removed by light sanding and buffing.
Tohsgib posted 01-04-2008 01:54 PM ET (US)
I have never discolored Whaler gel with bleach, nor did it affect the gel. Yes it strips the wax but I do not wax my floor, kinda defeats the purpose of non-skid. Acetone removes stains but also removes the gel, just look at the rag, it will be desert tan or whatever. I do use acetone as well to remove the gum from the decals, also takes away a lot of the gloss from the virgin gel under the decal allowing the new ones to adhere better. I do not recommend using bleach every wash, but I do use it a couple times a year to get stuff, factory clean.
Tohsgib posted 01-04-2008 02:48 PM ET (US)
Ps...I am using the cheap bleach from K-Mart, etc. Do NOT use the Chlorine from pools stores. Yes it will clean but that might do some damage....look what it does to your hands, etc.
Bella con23 posted 01-04-2008 02:52 PM ET (US)
"I do not recommend using bleach every wash, but I do use it a couple times a year to get stuff, factory clean. "
I'm guilty as well. I just wonder if it should be noted that a coat of wax should follow those spots that got the bleach just to protect any open pores left by the bleaching.
Makes me a little nervous now that I read it.
Joe

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Author	Topic: Mangrove Stains
Shrdlu	posted 12-31-2007 02:06 PM ET (US) Any suggestions for removing mangrove leaf stains from nonskid? The oxalic acid formulas don't work. Toilet bowl cleaner?
Brian7son	posted 01-02-2008 04:40 PM ET (US) You may want to clear this with some of the CW Guru's who are more knowledgeable than I before proceeding as it may not be good for your fiberglass. Try a little acetone on a rag. Then immediately wash it off thoroughly with soap and water. My boat is 10 years old and not "showroom". I have done this before and it worked on a few small spots on my deck that I just could not scrub off, no matter what. Brian
Brian7son	posted 01-02-2008 04:46 PM ET (US) Before you do that, try RustAid. You can but it at Walmart, home depot etc.
L H G	posted 01-04-2008 12:24 PM ET (US) Try Castrol purple bottle "Degreaser", or some of the other purple bottle knock-offs. Best cleaner I have ever used for difficult stains and heavy grease. Oxi-clean may also work, and it is good for vegetable/fruit stains. Chorox makes it in a non-chlorine containing formulation. Never use Acetone or chlorine bleach on gelcoat if you want to maintain a high gloss.
Tohsgib	posted 01-04-2008 01:07 PM ET (US) For mangrove and oak leaves(resemble wood more than leaf) I use straight bleach, does it without scrubbing. Sure it will strip the wax but so will scrubbing.
Bella con23	posted 01-04-2008 01:23 PM ET (US) This is an excerpt from the Boston Whaler website - Fiberglass/Gel Coat Stains and Scratches Gel Coat and painted surfaces are very resistant to deep stains. Common surface stains can be removed with diluted household detergents, providing these detergents do not contain ammonia or chlorine. Porcelain-cleaning powders are too abrasive and often contain chlorine and ammonia, either of which would permanently discolor the Gel Coat and paint. Alcohol or kerosene can be used for difficult stains but should be washed away promptly with a mild detergent and water. Never use acetone or ketone solvents. Minor scratches and deeper stains which do not penetrate the Gel Coat may be removed by light sanding and buffing.
Tohsgib	posted 01-04-2008 01:54 PM ET (US) I have never discolored Whaler gel with bleach, nor did it affect the gel. Yes it strips the wax but I do not wax my floor, kinda defeats the purpose of non-skid. Acetone removes stains but also removes the gel, just look at the rag, it will be desert tan or whatever. I do use acetone as well to remove the gum from the decals, also takes away a lot of the gloss from the virgin gel under the decal allowing the new ones to adhere better. I do not recommend using bleach every wash, but I do use it a couple times a year to get stuff, factory clean.
Tohsgib	posted 01-04-2008 02:48 PM ET (US) Ps...I am using the cheap bleach from K-Mart, etc. Do NOT use the Chlorine from pools stores. Yes it will clean but that might do some damage....look what it does to your hands, etc.
Bella con23	posted 01-04-2008 02:52 PM ET (US) "I do not recommend using bleach every wash, but I do use it a couple times a year to get stuff, factory clean. " I'm guilty as well. I just wonder if it should be noted that a coat of wax should follow those spots that got the bleach just to protect any open pores left by the bleaching. Makes me a little nervous now that I read it. Joe