Mr. Funky 29 Posted Thursday at 01:29 PM Share Posted Thursday at 01:29 PM Hi, due to some circumstances with water and insufficient ventilation over 2 months, the mahgoni wood inside my little boat from the seventies showed larger areas with thin white mold on the surfaces. After wiping it away last weekend, it began to dawn on me, that i have to take more actions to prevent it from coming back again. ...beside the obvious steps of sorting the issue with the water and the ventilation out, of course. One of the previous owners removed the ventilators on the forecabin, wich will be reinstalled... But what can i do, to protect the wood. It's mahagoni whithout varnish. It was slightly oiled with yachticon teak oil last year, wich i fear, was a mistake. Any thoughts, beside varnishing the complete inside? Thanks in advance, Mr. Funky Quote Link to post Share on other sites
valcour2 22 Posted Thursday at 02:00 PM Share Posted Thursday at 02:00 PM Lemon oil. Pick up a copy of Don Casey’s “This old boat”. He goes into some detail on this exact approach. 1 Quote Link to post Share on other sites
Mr. Funky 29 Posted Thursday at 02:21 PM Author Share Posted Thursday at 02:21 PM So the oil is not completly bad? I was afraid, that have to strip it... Quote Link to post Share on other sites
SloopJonB 12,553 Posted Thursday at 03:47 PM Share Posted Thursday at 03:47 PM 1 Quote Link to post Share on other sites
Mr. Funky 29 Posted Thursday at 08:00 PM Author Share Posted Thursday at 08:00 PM Doesn't chlorox Affekt the wood? Thought to give it a try on a hidden spot. Quote Link to post Share on other sites
Marty Gingras 313 Posted Thursday at 08:09 PM Share Posted Thursday at 08:09 PM 7 minutes ago, Mr. Funky said: Doesn't chlorox Affekt the wood? Thought to give it a try on a hidden spot. Wipe it in, wipe it off, and wipe again w/water. Never had an issue and done it many times. Probably don't even need that last step. Quote Link to post Share on other sites
SloopJonB 12,553 Posted Thursday at 08:38 PM Share Posted Thursday at 08:38 PM 35 minutes ago, Mr. Funky said: Doesn't chlorox Affekt the wood? Thought to give it a try on a hidden spot. While it contains some bleach it is not just spray bleach. Dunno the ingredients but it is the best green slime & mold cleaner I've ever found. 1 Quote Link to post Share on other sites
Mr. Funky 29 Posted Thursday at 08:44 PM Author Share Posted Thursday at 08:44 PM Thanks! Will be interesting to see, if it's available around here (germany), or to find something equivalent. Quote Link to post Share on other sites
SloopJonB 12,553 Posted Thursday at 09:09 PM Share Posted Thursday at 09:09 PM I just checked - 1.5% sodium hypochlorite Product ingredients Ingredient. SODIUM HYPOCHLORITE. ... Some Concern: skin irritation/allergies/damage, acute aquatic toxicity, respiratory effects, biodegradation; Disclosure Concern: non-specific ingredient. DIMETHICONE/SILICA/PEG DISTEARATE ANTIFOAM. LAURAMINE OXIDE. ... SODIUM SILICATE. ... SODIUM HYDROXIDE. 1 Quote Link to post Share on other sites
Mr. Funky 29 Posted Friday at 05:32 AM Author Share Posted Friday at 05:32 AM 8 hours ago, SloopJonB said: I just checked - 1.5% sodium hypochlorite Product ingredients Ingredient. SODIUM HYPOCHLORITE. ... Some Concern: skin irritation/allergies/damage, acute aquatic toxicity, respiratory effects, biodegradation; Disclosure Concern: non-specific ingredient. DIMETHICONE/SILICA/PEG DISTEARATE ANTIFOAM. LAURAMINE OXIDE. ... SODIUM SILICATE. ... SODIUM HYDROXIDE. Thanks! Quote Link to post Share on other sites
Leeroy Jenkins 474 Posted Friday at 01:34 PM Share Posted Friday at 01:34 PM 16 hours ago, SloopJonB said: I just checked - 1.5% sodium hypochlorite Product ingredients Ingredient. SODIUM HYPOCHLORITE. ... Some Concern: skin irritation/allergies/damage, acute aquatic toxicity, respiratory effects, biodegradation; Disclosure Concern: non-specific ingredient. DIMETHICONE/SILICA/PEG DISTEARATE ANTIFOAM. LAURAMINE OXIDE. ... SODIUM SILICATE. ... SODIUM HYDROXIDE. Ever use it on sails? Quote Link to post Share on other sites
SloopJonB 12,553 Posted Friday at 03:55 PM Share Posted Friday at 03:55 PM No - I'd be concerned about the bleach component yellowing things. Maybe try it on a part of an old sail - we all have one or more of those taking up space somewhere. I've had a couple cleaned by pro's and I think they soak them in an Oxy type "bleach" cleaner. (They were a bit cagey about their process. Quote Link to post Share on other sites
SASSAFRASS 764 Posted Saturday at 05:28 AM Share Posted Saturday at 05:28 AM Concrobium. Multi cleaners are ok for a big cleanup but the above is a good long term effective solution. Bleach can be a PITA Quote Link to post Share on other sites
asmo 5 Posted Saturday at 04:09 PM Share Posted Saturday at 04:09 PM Formula B! Drew Frye, a chemical engineer who writes for Good Old Boat magazine posted an article on cleaning and preventing mildew on boats. In it he gives his recipe for Formula B (a solution of Borax, Washing Soda, and TSP). We’ve used it a fair amount with great success. https://goodoldboat.com/clean-mildew-sailboat/ 1 Quote Link to post Share on other sites
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