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will vinyl stick to painted ply board?
Hi People
Your help would be be greatly recreived. I am sticking vinyl to painted ply board, i have used water and oil paint, varnished it, used heat and still the problem. I have seen some boards done and the seem to use a type of clear sealer and the vinyl stick like mad to theres Can anyone help
P.s the vinyl used is mactac both types
CheersDan
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12 Replies
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has the board been sanded down, then given a good gloss coat?
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Hi Robert
Yes its pretty smooth
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if its smooth and a decent "gloss" coat. there shouldnt be any issues… none i can think of off hand anyway… mactac 3-5 and 5-7 year range would be perfectly fine to use.
are you fitting the vinyl wet or dry?
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fitted dry, it seems to stick for a while and then starts to peel
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sounds odd Daniel, what if anything are you using to prep the board before applying the vinyl?
Peter
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You say you have used both water and oil paint.
Are you referring to Latex paint?
I can never get vinyl to stick to this well, even with a dry application.
Especially with MacTac.
You might try heating it with a hair dryer and burnishing with a felt squeegee.
But I doubt it will help.I would remove the vinyl, clean and sand the board, and paint it with 1-Shot lettering enamel. Wait two days, then try Oracal 751 applied dry.
You could probably varnish over this with 1-Shot speed dry UV clear to insure adhesion, but it’s not usually necessary.
Love….Jill -
Hi Peter
i seal it with a primer/ undercoat
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hi jill
thanks for that, its worth a try -
Now – importantly, is it VARNISH or clear polyurethane (PU)?
Not much sticks to real varnish…and you can unfortunately get some PU clear coats that contain such oddities as Teflon (non-stick).
I’d normally just apply straight to the paint. And it probably work best with a non-‘trade’ (often a lower oil content for domestic market) type & (although it’s not required) I’ve known it to be clear coated in yacht varnish (PU) for a pick-proof & even gloss finish.
What IS required though for best adhesion is a flat surface without the grain being prominent…or it’s out with the heat gun & dabbing the softened vinyl into the grain!
Dave
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Thanks dave i will try without the varnish
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Best way to coat plywood is:-
1. 2 coats of oil based primer.
2. 2 coats of oil based undercoat.
3. 2 coats of top coat gloss finish.Sand down between each coat starting with 120 grit then 180 and finally 240 grit and thin the first coat of primer about 20% with white spirit.
Paint using a 4" wool roller and switch to a foam roller for the top gloss coats.
I wouldn’t bother with varnish as this yellows after 18 months to 2 years and DO NOT use polyurethane varnish outdoors.
I use 1 Shot Sign Restoring clear and have never had any issues.
If you follow this procedure you should never have any adhesion problems.
Hope this helps.
Neil
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Thanks Dave I will give it a go
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