Automobile, Enamel, Epoxy primer, HVLP, Paint, transportation
Paint by Number Part II
September 18, 2012
Continuing the previous post where I outlined the steps I took to prep my frame and suspension components for paint.
I chose a two part epoxy primer to be applied directly over the bare metal. The product I had planned on using was from SPI (Southern Polyurethanes). I needed a bunch of other things and instead broke down and used the two part epoxy sold by Eastwood. It was really more of a convenience thing to go to one place combined with my impatience to get the truck done. The items I needed were:
- Mixing cups
- Paint Stainer
- Air pressure regulator at the spray gun
- Epoxy primer and catalyst
- Wax and grease remover
- Tack cloths
- Gun cleaning kit
I already had the Chassis black from Bill Hirsch which would be the topcoat.
I cleaned up and thought ahead so things would go smoothly. I learned quite a bit from this first attempt and the results were pretty good. Most of the things I would change had to do with technique or general layout and setup.
Areas where I could improve and realized while painting:
- Make sure there is plenty of room to get around everything so movements are smooth and linked between sections.
- I was not getting an even wet coat this was a combination of
- Pressure at the gun and speed of travel. I set the pressure at the gun at 30 psi (which would be about 10 psi at the tip) but I was getting some dry uneven coverage. I should have increased the pressure a bit and or also should have slowed down the movement of the gun during my passes. When I did do this the paint came out much nicer.
- More light as it was difficult with the black primer to keep track of where I was at.
- Plan out movements better before starting this would have helped avoid any errors where the paint finish has a hose dragged across it or paint is bumped into (only one minor spot).
- Have a plan for the bottom sections of the frame either brush on the paint, use a smaller gun such as a touch up gun or get the frame higher. Difficult to get good coverage with a gravity feed gun from underneath.
Overall I was happy with the outcome. The HVLP has a very small amount of overspray and the overspray that does occur is basically powder by the time it hits the ground. Contrast this with a rattle can which I did use for my brackets which had overspray everywhere. In the future I’ll definitely go with HVLP.
From → 1942 Chevy Stakebed, Paint