Getting dirt out of Collinite paste wax - SailNet Community

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Go Back   SailNet Community > On Board > Gear & Maintenance
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Old 05-05-2012
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Getting dirt out of Collinite paste wax

Here in SW PA we have coal soot in the air - which lands on the deck which gets washed over the rub rail and (naturally) down the hull.

Have done the compounding, polish, glaze and Collinite x2 routine in MaineSail's "Compound, Polish & Wax" thread - with outstanding results.

But, today we scrubbed the cabintop, deck and hull. After drying there remains a couple of small bloches where there is still dirt - I suspect coal soot. The hull is uniformly polished and waxed - so the dirt is not in the gel coat.

What's a strong soap that will remove dirt from Coillinite? Or maybe a more correct question is what's the most effective way to remove Collinite?

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Old 05-05-2012
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Re: Getting dirt out of Collinite paste wax

Any 'strong' soap will remove the wax. So, any soap or detergent that wont destroy the wax is going to have to 'pH Neutral' ... like some of the higher priced 'neutral' auto detergents.

Are you sure its coal dust? Reason I ask is this is fungus spore season and artillery fungus (aka shotgun fungus) which causes 'black specks' on boats is quite rampant this time of year ... and it likes to 'eat' wax. Artillery fungus 'thrives' in cool/humid conditions ... its the black stuff that you always see on the roofs, garden furniture and boats anywhere near a 'woods' or hardwood forest. On boats it usually looks like 'teeny' black specks - like coal dust.
The bad thing about artillery fungus is that to remove it from a boat, etc. you need something highly caustic so that the fungal cells are dissolved, and that will also remove/strip the wax.
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Old 05-05-2012
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Re: Getting dirt out of Collinite paste wax

Interesting RichH. Within a few days of cleaning the boat we have faint black drip marks that run down the hull - at the widest (and therefore with the most curvature) of the hull. INW, where the water that drips down from the rubrail directly onto the hull. Also get faint black streaks down the hull where there is an opening in the gunwale for the stanchions.

I am now wondering if you can determine one from the other. Coal soot can be acidic also.

Last edited by oomfh; 05-05-2012 at 10:37 PM.
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Re: Getting dirt out of Collinite paste wax

Im from E Penna. where the coal is 'hard' and all the mills were closed down by the EPA pressure, I dont know about soft coal dust. ;-)

Here's a test.
Put a few drops of strong ammonia or TriSodiumPhosphate (TSP) solution on these specs on a horizontal location on your boat, immediately cover with saran wrap and tape the edges to the FRG gel coat. Come back in a few hours and if the specs are now 'smeared' or even dissolved = a fungus, probably artillery fungus. If you dont have strong ammonia, than any 'strong industrial grade' caustic detergent will work.

Last edited by RichH; 05-05-2012 at 11:33 PM.
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Old 05-06-2012
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Re: Getting dirt out of Collinite paste wax

Thanks for all the info Rich. Didn't read this until after I spent the day cleaning the boat. Washed the entire hull with TSP with some interesting results. The TSP actually doesn't (in my noivce opinion) seem to remove the Collinite. The water still beaded on the forward part of the hull (where rain water does not drip down onto it.) The parts of the hull where rain water does drip - there is no beading. I ineterpret this as the acid on the coal soot is dissolving the wax - and gettting into (as highly polished as it is) the gel coat. Even after washing with TSP there are still "shadows" running down the hull - directly below the stanchions.

After investing all the money and time in restoring the gel coat - I am very bummed about this. How do you combat acid rain???

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Old 05-07-2012
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Re: Getting dirt out of Collinite paste wax

Spoke with Collinite this a.m..

We pretty much concluded that acid rain is removing the wax - even the 885 paste will not hold up. They recommended using the 870 cleaner/wax in the affected area during the season.

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