"SofaKing" wrote in message news:7ew4c.789381$X%5.349676@pd7tw2no...
Sink's built. I'm about to line it with fiberglass cloth and two-part epoxy
resin. I built the box with 3/4" G1S Fir plywood. (an 8' X 28" sink in case
you're wondering, as per "Building Your Darkroom" Lista Duren & Will
McDonald, 1990). Duren's book doesn't have any info on using fiberglass
however. If I go fiberglass resin w/cloth on bare wood there should be no
problem right? Or should I prime the whole thing with oil base primer
with/or without oil-based paint? If I do paint it will I be able to see the
color through the fiberglass? Can Fiberglass resin be top-coated with paint?
Thx. And thanks to all those who gave me practical advice on the colour of
the darkroom question too. Many good points. Incidentally Orange is the best
colour to wear with Dektol. Orange is the new Black this year.


I've spoken to other older darkroom workers about fiberglassed sinks.
They always said that they had to do maintenance to the sink at some
point, like re-applying resin, etc, because either the sink started
leaking or the cloth started separating from the wood.

I took this information to heart as I built my own first sink.
Instead of using Fiberglass, I used a product called 'Gluvit' which is
a marine epoxy. I purchased it at a marine supply store - I don't
think you can find it anywhere else. I don't remember how I came upon
this product, but it has served me well. The current sink I am using
now was built about 5 years ago. No leaks at all. And for the past 2
and half years, it's been getting very regular use by the people who
rent my darkroom.

When I coated the sink, I just went for a natural look, mainly because
I didn't know any better. I think the next one I might build (if the
current one ever does leak) would be to mix gray paint into the epoxy
or paint it gray first and then epoxy over it.

One thing I would do differently would be to use a plastic or pvc
drain fixture. The metal one I installed is rusting.

Hope this helps.

dp