Painting aluminum trailer guidance.

J

Jmb930

New Member
Hey there I was directed here from a different forum and I'm just looking for a little guidance on the SPI Epoxy Primer. I am painting an aluminum trailer (pictures below, I'm just painting over the white painted areas)

- I am sanding with 180, then 220, then wet red scuff pad.
- Clean well with SPI’s 700-1 Waterborne Wax and Grease Remover.
- Then use SPIs Epoxy Primer (mixing ratio 1:1)
- I then am going to use a single stage restoration shop acrylic enamel paint. (I can't find the information on the time window I have after I spray the Epoxy primer to then apply my SS?) -- If anyone knows this information that would be greatly appreciated!

Any other guidance, answers or direction will be much appreciated!

Appreciate the help! Thank you
 

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Prep - clean the trailer, 80-180 grit it, waterborne it, then shoot the 1st coat of epoxy the same day- do not wait overnight.
you can shoot SS 24 hours after epoxy
 
BrianK said:
Prep - clean the trailer, 80-180 grit it, waterborne it, then shoot the 1st coat of epoxy the same day- do not wait overnight.
you can shoot SS 24 hours after epoxy
Click to expand...

Okay, so your saying after the waterborne dries shoot the epoxy same day? -- Then let epoxy dry for 24 hours and I can shoot the SS?
 
If you're doing this by yourself, that's a lot of real estate to get prepped and sealed with epoxy in one day. It appears from the picture the horse trailer is made up of individual panels. If it was me, and because I'm slow, I would break the trailer up into four sections. The good news is you've already prepped the trailer by sanding the bulk of the old paint. Now all you have to do to before spraying epoxy is go over the panels that you can spray for that day using a da with 80 grit. Blow off the panels with compressed air, then wipe down with SPI-700. This will give you fresh aluminum that had already started the oxidation process with your initial sanding.

Let the SPI 700 dry for an hour before spraying epoxy since it may have absorb into the remaining existing paint. While waiting for the SPI 700 to dry, you can mask off adjacent panels from over spray.
 
Last edited:
MJM said:
If you're doing this by yourself, that's a lot of real estate to get prepped and sealed with epoxy in one day. It appears from the picture the horse trailer is made up of individual panels. If it was me, and because I'm slow, I would break the trailer up into four sections. The good news is you've already prepped the trailer by sanding the bulk of the old paint. Now all you have to do to before spraying epoxy is go over the panels that you can spray for that day using a da with 80 grit. Blow off the panels with compressed air, then wipe down with SPI-700. This will give you fresh aluminum that had already started the oxidation process with your initial sanding.

Let the SPI 700 dry for an hour before spraying epoxy since it may have absorb into the remaining existing paint. While waiting for the SPI 700 to dry, you can mask off adjacent panels from over spray.
Click to expand...
Thank you MJM! Very helpful info!-- I should be able to spray them all in one day. I'm now at the point where I can hit it with DA 80 grit, give it a good scrub cleaning (soap and water) - Tape everything off then clean/wipe with SPI-700, spray epoxy after the 700 dries... (That's the idea in my head anyway.. lol. The next day hit it single stage.

Also curious if you have information on spray gun. I already have a large compressor, Is there a gun out there you recommend that can get the job done, but also not over $200..

Thank you so much for your help!
 
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