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problems mounting reverse printed graphics onto glass
Im after any advice or tips on mounting reverse printed graphics onto glass. The problem is that the customer wants the reverse printed black letters to be completely black with no silvering. I decided to mount them wet using Rapidtac and got a great result. However once it had dried patches of the glue on the black letters had dried milky. Any suggestions on how best to mount these prints? The glass has been supplied cut to size and could go through a laminater but I think that the black would still appear silvery.
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8 Replies
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Have you tried simply applying dry to see what it looks like?
Just curious.
I try to do most glass applications dry.
Love….Jill -
Jayne, I’ve done a fair bit of dark colours on to glass or acrylic, always dry.
As far as I recall, initially there is a silvery look but after a few days the vinyl pulls down tight leaving solid colour.
Always use new applicators to minimise minute air residue.
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I think that it will have to be applied dry but the customer is VERY fussy and Im not sure if she will wait till the silvering disappears. At this point Im not sure that she has a choice 🙁
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quote Jayne Marsh:Im after any advice or tips on mounting reverse printed graphics onto glass. The problem is that the customer wants the reverse printed black letters to be completely black with no silvering. I decided to mount them wet using Rapidtac and got a great result. However once it had dried patches of the glue on the black letters had dried milky. Any suggestions on how best to mount these prints? The glass has been supplied cut to size and could go through a laminater but I think that the black would still appear silvery.Jayne
Which vinyl are you using ? as milkiness within the adhesive generally indicates a reaction of a water based adhesive. Most monomeric films have water based adhesives and will go milky with wet application, cast or polymeric calandered vinyls generally have solvent based adhesives and will not milk with a wet application.
The milkiness is generally only noticeable on darker colours so would not be as visible on white or lighter shades.
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If it helps just applied 50meters of 1230mm all wet with rapid tac one, after fitting slight milky spots, after 4-5 days pure gloss black no marks.Vinyl used jac vinyl used
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The vinyl used was solvent printed and I will have to check wether it was monomeric or polymeric. It will be interesting to see if the milky spots do disappear, unfortunately the job needs to go out today
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As Richard says, the milkyness goes in a few days, particularly if it’s warm. I think you’ll find that it is caused by the adhesive on the material not the actual material type. Acrylic based adhesives are affected by water unlike solvent based.
Steve
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Thanks for all your input, the job was eventually done dry and by hand and apart from a few patches of silvering it looked good 😀
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