First, I want to announce that I have indeed found something that you can entirely make out of Bondo and not feel at all
bad about it. I manufactured a completely bogus 1963 North Carolina license plate with some old
Plexiglass, a handful of modelling clay, some plaster of Paris, Bondo (the cheap kind), and some paints found in the garage.
The process was simple: Using the plexiglas as a base, I fashioned the raised letters and numbers with the modelling clay, making
the side bevels a bit more gradual than the eventual product. This allowed for some material for shaping. After applying a bit of
dishwasher soap and water to the Plexiglas and clay plate, I poured plaster of Paris over the plate. This made a mold. After the
mold had set, I applied Bondo to the mold, and embedded a piece of wire screen for strength an entirely good "blodger" practice.
I had to break the plaster apart to remove it from the Bondo, in spite of the soapy lubricant. Final shaping was with sandpaper.
The plate design came from the web. People actually have extensive collections of automobile license plates. Yellow lettering over
a black background was official for 1963, and apparently the first two characters were alphabetical, followed by and dash and then four
numbers.
Does this make me a felon? Sure hope not! I'll only use this plate for show, if I ever do that.
Priming and Painting
Priming and painting have occupied July so far. I decided to move away from the POR-15 "Tie-Coat" Primer, which basically serves to bond
to the POR-15 sealing coat. Although it's a buildable primer, it's expensive. I worked a bit with a two-part epoxy primer when I painted
the truck that the boys wrecked (good painting practice, I figured). I liked the two-part primer better than the "Tie-Coat," and I do think
that the epoxy paint probably is tougher than the "Tie-Coat." I have focused this priming/sanding effort on the exterior sections of the
car body. The inside of the trunk and the interior I have left with just the "Tie-Coat" primer. I block sanded only sections of the trunk
interior that will be visible at times, namely the floor beneath the spare tire.
I decided to spray a sealer before any color. It isn't absolutely necessary, but I ran into a problem with paint not sticking and bubbling up.
That was enough of a pain to go through the precaution of using a sealer. Surface preparation entailed washing the surfaces with clean water to
remove dust and dirt. After that I used a degreaser to remove any residues of grease or oils that might have dropped onto the surfaces. Then it was
a matter of waiting and watching for everything to dry and no long wait was required, since North Carolina has been hot
lately. I gave it about two hours.
The Dupont sealer I used is three-part: a base, a thinner-activator, and an activator. Pot life for the mixed product is only one hour. I have found
that the stuff is tough to clean off of hands and any surface where it's dried. I was told that the sealer should be allowed to dry, but that painting
over it should take place pretty soon after drying. An overnight dry-time is not appropriate, I was told by some experienced painters. If the sealer
dries overnight, I was told to "scuff it up" before applying color.
After sealer comes the color and then the clearcoat. One thing I've noticed with spraying color over the sealer: you need to be sure not to miss
any places. The dark grey of the sealer masquerades as the opalescent basecoat, even when I've sprayed in very good light. I've decided to spray two or even three coats of base color, methodically
covering all areas. Method is probably the key here start and end your painting of a section following a plan.