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Posted by WillR on August 18, 2005, 1:07 pm
Harry Muscle wrote:
> OK, I'm gonna try to call the manufacturer ... however in the mean
> time, here's some more information I pulled from the MSDS ...
>
> It's made by Torcan Coatings (www.torcancoatings.com) and it's called
> Gymnasium Satin. It's an oil modified polyurethane from the aliphatic
> hydrocarbon chemical family. It's 53% mineral spirts and 9% Silica
> Amorphous. I'm not sure if this info actually helps anyone, but you
> guys wanted more info.
>
> Thanks,
> Harry
>
From...
http://www.woodworking.com/wwtimes_oilvarnish.cfm
*****************************************************
One very important factor when applying varnish is how the temperature
effects the speed at which it cures. You should not apply varnish in
temperatures lower than 65 degrees. If you apply varnish in lower
temperatures it may take several days, even weeks for it to cure. Room
Temp. (approx. 70 to 75 degrees) is good for applying varnish. Hotter
temps. will make the varnish cure quicker, but the solvent in the
varnish will evaporate quicker, making the varnish set-up quickly and
you may have a problem getting the varnish to flow out properly. This
could result in brush marks, bubbles and an uneven film. When working in
temperatures higher than 75 degrees, try not to work on large surfaces.
****************************************************8
Nobody seems to mention specific times -- because...
Temperature ***
Humidity
Thickness o application layer
and Exact oil/varnish ratio
sanded between coats?
all make a difference.
I stick with my guess of about a month for close to max. hardness. But
it's a _guess_
I am guessing that they brushed it on and had to work quickly -- so the
there was not much oil... It should dry harder if so.
Certainly no less than a week...
http://www.michaels.com/art/online/displayArticle?articleNum=ae0119
"Let the varnish cure for several days before placing anything heavy on
it so as to prevent any dents being made in the finish. It is a good
idea to wipe a coat of clear paste wax on the bottom of any painted
object that is placed on the finished project, as this will prevent the
two sticking together."
http://www.google.ca/search?q=varnish+curing+time&hl=en&hs=sxm&lr=&client=firefox-a&rls=org.mozilla:en-US:official_s&start=10&sa=N
--
Will R.
Jewel Boxes and Wood Art
http://woodwork.pmccl.com
The power of accurate observation is commonly called cynicism by those
who have not got it.” George Bernard Shaw
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