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Hull degreaser


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A few hull coating data sheets I've seen recently specify an alkaline degreaser as part of the prep. What are people using?

 

I was thinking of plain soda crystals in hot water, safe and cheap, pH of around 11, would that do the job?

 

 

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Which hull coating data sheets are these? I've never seen, or heard of alkaline degreaser being used on any blacking for inland steel hulls. I may even have read the instructions on the tin at some time! Are we talking about anti-foul for GRP hulls, or something else?

My concern with using anything that is going to be rinsed off is where is the rinse water going to end up? The cut, storm drain, sewer? In each case someone might have something to say about a high pH chemical ending up in it. 

Jen

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10 hours ago, barmyfluid said:

degreaser

http://www.cloverchem.co.uk/2013/info/en/326_virosol_info.pdf

which may be diluted with water and seems to work better when used with water 

 

or 

 

https://www.bmstores.co.uk/products/elbow-grease-all-purpose-degreaser-500ml-345773

which  also works well with water and may be easier to obtain as it is sold in places like The Range , Morrisons and B&M

 

.

 

 

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2 hours ago, Jen-in-Wellies said:

Which hull coating data sheets are these? I've never seen, or heard of alkaline degreaser being used on any blacking for inland steel hulls. I may even have read the instructions on the tin at some time! Are we talking about anti-foul for GRP hulls, or something else?

My concern with using anything that is going to be rinsed off is where is the rinse water going to end up? The cut, storm drain, sewer? In each case someone might have something to say about a high pH chemical ending up in it. 

Jen

SML Vinyguard and Ballastic epoxy for a couple:

 

https://www.smlmarinepaints.co.uk/files/library/files/DATA_SHEETS/Vinyguard_Silvergrey_88_AG.pdf

 

I've never seen it as a requirement for standard blacking either, though I'd guess it's not immune.

 

I would be wary of high pH or chemical runoff, that's why I thought soda crystals may be a good choice, they're pretty innocuous in the scheme of things, they're used in laundry etc.

 

 

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