On Tuesday, 8 September 2020 14:59:00 UTC+1, TimW wrote:
What is the point of Aluminium? How does that work?

I am using some old boat primer I found in the back of the shed. It
doesn't even dissolve in white Spirit so it must be good stuff, but why
is it full of glittery aluminium flakes?

TW

A metal barrier stops stuff bleeding through, eg stains, burnt smells etc.


NT