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Old 7th Nov 2017, 9:51 am   #11
GrimJosef
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Join Date: Sep 2007
Location: Oxfordshire, UK.
Posts: 4,311
Default Re: Best oil-proof sealant?

Quote:
Originally Posted by astral highway View Post
... In terms of cleanliness, I will wash the container with detergent and hot water in a dishwasher - that should do the trick ...
Usually what seems to matter is the removal of grease. Detergents can do this, but then you tend to end up with a layer of detergent stuck to the surface. I used to work with people who told me that once an object had been exposed to detergent it was impossible ever to get all of it off again. I also knew people who used the detergent layer as a release agent for coatings.

If they wanted a really clean surface they'd either dry machine it in a clean workshop and then never touch it or, having used the detergent, they'd wash it again and again and again in increasingly pure water. I don't know whether any of this rigmarole would be necessary in your case though. Those folks wanted really good adhesion which is not the same as really good sealing.

Cheers,

GJ
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