Your playing with fire my friend.
Polyurethane over vinyl wrap.
Using ppf on the front bumper or the lower door panels will shield your wrap from chips and damage from gravel and other hazards of daily driving.
When it shrinks and the hot sun reactivates the glue on the vinyl and the edges will start curling.
Been there done it.
For polyurethane you ll probably apply five to ten coats.
There s a running debate on whether or not you should apply your clear coat over your vinyl decals.
Once you have your letters down and put clear varnish or the polyurethane over vinyl this material will shrink in hot weather.
By lehua125 on sat jul 24 2010 1 52 am this is my first time building a set of boards i have stained the wood and coated with polyurethane.
Do i have to poly over vinyl decal.
You can use frog juice or cover it with a sheet of clear vinyl.
If your wrap begins to peel you can try applying additional coats of polycrylic to keep the vinyl down and protected but results can be mixed.
Let cure dry then apply the wraps and lightly clean then apply the vinyl wraps or decals.
The same thing seems to happen to every set.
If leaving your boards natural wood brush or spray minwax polyurethane on the wood board tops let cure for 24 hours and then lightly sand with 400 grit sand paper.
Once this happens the wrap or sticker will begin to peel away.
Let the paint totally cure dry before applying a poly clear coat to the top deck.