Is there any way of "thinning" old tins of polyurethane varnish
that have not been sealed and have gone hard?

--
Timothy Murphy
e-mail (80k only): tim /at/ birdsnest.maths.tcd.ie
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland

"Timothy Murphy" wrote in message


Is there any way of "thinning" old tins of polyurethane varnish
that have not been sealed and have gone hard?

You mean one that will give you a cheaper alternative than buying a new
tin, yet allow you to apply a nice finish and have it last as long as
the
good stuff?

Or do you just want something you can throw at the bloody fool
responsible for leaving the tins open, without killing them?


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Michael Mcneil wrote:

Is there any way of "thinning" old tins of polyurethane varnish
that have not been sealed and have gone hard?

You mean one that will give you a cheaper alternative than buying a new
tin, yet allow you to apply a nice finish and have it last as long as
the good stuff?

Yes - though it's not so much saving money
as not wasting the half-tin that's left.

I assume from your response
that there is no solution (pun intended).

--
Timothy Murphy
e-mail (80k only): tim /at/ birdsnest.maths.tcd.ie
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland

Timothy Murphy wrote:

Is there any way of "thinning" old tins of polyurethane varnish
that have not been sealed and have gone hard?

no.

"The Natural Philosopher" wrote in message


Timothy Murphy wrote:

Is there any way of "thinning" old tins of polyurethane varnish
that have not been sealed and have gone hard?

no.

Quite. They are like epoxy resins. They react with oxygen to form a
plastic coat. I used to put turps or whatever thinner -just a few drops
on top of part tins and turn them upside down.

It kept them a little longer and any skin formed on the bottom. The tin
was properly sealed too or went to hell noticeably quickly.



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