1" thick HDU, two coats of Jay Cook primer.
2 coats of OneShot black enamel
Sponges and feathers.
2 coats of UV resistant clear.
Sign is 3 pieces. One seam across, one seam vertical. Done with
TruMatch (wavy bit) and Gorilla Glue.
At 67" x 107" the thing had to be done in sections because my CNC is
only 50 x 100
Talked to all kinds of sign people on different forums and nothing
works as well as Gorilla glue on HDU. It is essentially the same
material. That glue has its place, but I am not sure that woodworking
is it. It's sure is yucky to work with.
Then, while leveling the seam, the GG sands as nice as the HDU ... and
it is waterproof.
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