I dont have my System Three book anymore, but I distinctly recall that a 10% variance in the amount of hardner was accptable (+- 5%). I have had close calls where added heat finally kicked it off, and I assumed it was either an incorrect mix, or not stirred well enough. More likely an incorrect mix.

I think it'd be worth a test spot to see, if the cloth adheres then it probably will be OK.

> Unfortunately, epoxy is a 2-part system where its takes exactly the
> correct ratio of resin to hardner to cure. This is at the molecular level.
> Epoxy hardens by the joining of molucules together into long chains. If
> there is any excess of one part over another, that excess has nothing to
> bind to and is left as an uncured void in the matrix. To properly cure we
> are instructed to mix very thoroughly before applying epoxy, this is
> because the 2 parts don't flow or mix together vey well on their own. Thus
> any of the uncured epoxy in the wood cells will remain so.

> Epoxy components are soluble in acetone but as the acetone evaporates it
> leaves the epoxy behind thus acetone must be scrubbed into the surface and
> removed before too much evaporation occurs.

> Bram