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Which varnish for plywood?
Posted: 01 Nov 2015, 20:30
by Emma&Al
Id like to varnish the plywood cards instead of covering them in vinyl or other material.
Which should I go for and how long does it normally take to dry?
Thanks

Re: Which varnish for plywood?
Posted: 01 Nov 2015, 20:52
by Reimotim
Yacht varnish is good and also resistant to moisture, which is useful on the back of the door cards.
Tim
Re: Which varnish for plywood?
Posted: 01 Nov 2015, 20:54
by Emma&Al
Thanks Tim

Re: Which varnish for plywood?
Posted: 01 Nov 2015, 20:58
by Emma&Al
Do I need to thin the varnish before I apply it and if so, what should I use? Thanks

Re: Which varnish for plywood?
Posted: 01 Nov 2015, 21:02
by nicq
The only trouble with yacht varnish is it cracks when bent.
Re: Which varnish for plywood?
Posted: 01 Nov 2015, 21:05
by Reimotim
Emma&Al wrote:Do I need to thin the varnish before I apply it and if so, what should I use? Thanks

I just put mine on as it came out of the tin. I used it to seal the ply before covering, but if you are looking for a good wood finish then you probably want to do several coats with a sand back with fine sand paper in between.

Re: Which varnish for plywood?
Posted: 01 Nov 2015, 21:07
by Reimotim
nicq wrote:The only trouble with yacht varnish is it cracks when bent.
Fortunately if you're only doing the door cards there shouldn't be too much bending.

Re: Which varnish for plywood?
Posted: 01 Nov 2015, 21:17
by Emma&Al
Thank you!

Re: Which varnish for plywood?
Posted: 02 Nov 2015, 06:33
by Titus A Duxass
You should thin it before applying especially for the first coat.
50\50 for the first coat, then more varnish than thinner say 80\20.
If you put it on straight from the tin it doesn't soak in as much and sits thickly on the surface which can lead to cracking.
Re: Which varnish for plywood?
Posted: 02 Nov 2015, 08:23
by paperhouselad
Hi yes you need "old fashioned" boat varnish as used on clinker built type vessels, this tends to flex a little unlike yacht varnish which is a much harder glaze. As above thin down to soak it in, also best to get spirit based not water soluble. Cheers.
Re: Which varnish for plywood?
Posted: 02 Nov 2015, 11:28
by Emma&Al
Thanks so much

Re: Which varnish for plywood?
Posted: 02 Nov 2015, 16:20
by CovKid
Mine are ply. I gave them a sand, followed by pale blue colour wash with a sponge, then a coat of polyeurethane varnish. If you use yacht varnish it soaks in and also darkens the ply.
Re: Which varnish for plywood?
Posted: 04 Nov 2015, 21:50
by what2do
Alternatively, a superior product would be QD acrylic varnish. Recoatable in an hour or so and improved flexibility over any solvent based product, cheaper too.
Re: Which varnish for plywood?
Posted: 05 Nov 2015, 11:21
by NicBeeee
If I have to varnish interior wood I normally use beeswax with wire wool to finish, gets rid off any bits of dust and leaves a nice smooth finish, I prefer to use oil nowadays, easy to apply and gives a nice mat finish
Re: Which varnish for plywood?
Posted: 05 Nov 2015, 21:36
by Reimotim
NicBeeee wrote:If I have to varnish interior wood I normally use beeswax with wire wool to finish, gets rid off any bits of dust and leaves a nice smooth finish, I prefer to use oil nowadays, easy to apply and gives a nice mat finish
I like a bit of Danish oil, which I have used on several DIY projects
