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Varnish Boat table
Hello,
I’m getting ready to apply the two-component Epifanes Polyurethane varnish, and I need to coat both sides.
My plan was to apply three coats on one side during the same day, then do the other side 24 hours later, and continue alternating like that until I reach 9 coats. After that, I would sand between each coat until I reach a total of 12 coats.
I would like to know your method if it is different, or if you have any suggestions to improve my process.
thanks
Ghislain
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I applied a first coat today. I started with a roller, but there were a lot of small fibers/hairs coming off, so I continued with a brush, which was a little better.
Should I continue and apply my three coats before sanding, or would it be better to do a light sanding before continuing?
thanks
I forgot to mention I use red tree mohair 10 roller
maybe I will use foam roller.
thanks
Applying three coats of Polyurethane on both sides in one day would be very difficult unless you were spraying, it will all get very sticky! I would typically approach this as you see in the lesson on brush technique using spikes to support the part but I suspect you are better off doing 1x coat per day to let this become touch dry first.
I don't really like the red tree rollers as I have found they lose a lot of hair, the only ones I have found that shed no hairs at all are the Anza felt rollers: https://danleeboatbuilding.co.uk/product/anza-roller-covers/
Hi Dan
What I did was apply 3 coats on one side over a 24-hour period. I then waited until it was dry, sanded the edges, and applied 3 coats over a 24-hour period on the other side.
Would it be better to do it the way you suggested: apply 1 coat, wait until it is dry to the touch, flip it over, apply 1 coat on the other side, and continue this process until I reach 3 coats per side, then sand and repeat?
Thank you.
I think thats a good method you have there already. Two sided things are always difficult and it's a balance between creating pin marks in one of the faces vs a blend line where the two edges meet. If needed a blend line can be easily polished later on to remove it.
Hi everyone,
I’m now on my tenth coat, and this issue has started to appear. I don’t think it’s dust—my workspace is extremely well sealed and clean, and I wet the floor before applying the varnish.
It almost looks like some kind of reaction in the varnish itself. Does anyone have an idea what could be causing this? If so, how would you fix it?
thanks!
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Hi
The reason I purchased this boat varnishing course was to see if I could sort out issues with my varnishing Teak railway coaches 60' long I must admit looking at your pics they look similar to some finishes that I have had unfortunately, there is to much going on in the workshop to keep the dust down, although having tried several brands I think some varnishes today are not what they used to be with different formulas to satisfy the H/S brigade
This is most certainly caused by dust. It is amazing how small a particle can create a big crater like effect here. Looking at this it would be my suspicion that this is caused by dust contamination in the varnish rather than it landing on the surface post application. A few things to consider:
- Are you straining your varnish prior to application?
- What are you using for application?
Let me know and I'll try and help you get to the bottom of your issue.
Thanks
Dan