Issue with milscale will spi epoxy stick?

Just to keep it plain as possible::
1. I would use a spray bottle and wet the entire hood with ospho and go over with Red scotch brite while keeping the surface wet.
2. Make sure the surface stays wet while scuffing for about 5-10 minutes or long enough to treat the area.
3. After scuffing then use a water hose(No nozzle) with clean towels or rags, wipe over the entire panel pretty good with running and towels.( how long should you run water over it?
Million Dollar question: How can tell its 100 percent Neutralized by looking at before moving on to prep for epoxy?
4. Wipe panel completely dry with clean dry towels.
(Repeat as needed to prep panel)
5. DA with 80# grit
6. wipe with 700 or 710
7. Let dry for 1 hour
8. Shoot epoxy
 
Million Dollar question: How can tell its 100 percent Neutralized by looking at before moving on to prep for epoxy?
If it turns orange you know there is no acid left:) The "tinge" won't hurt anything, but is easily removed with the 80# DA. On a surface like yours, don't be surprised if all the rust is not removed with the first application. Try your steps 1-6 above, and if it still doesn't look like you want it, spray it again and let it sit overnight. Then repeat your steps again. That black rust that crash mentioned above can be a real bear to remove. I had a couple of roofs so bad, I finally ended up blasting a few areas after trying everything else I could think of, including 8" 40# and 80#, several different wire wheels, acid several times with scotchbrite, wire brush, and blasting media with a scotchbrite, 3M 07476 Clean and Strip discs (these work pretty good most of the time), and the Roloc surface conditioning discs (brown ones). Hopefully yours just comes right off:)
 
For the stubborn stuff just wet it with acid, and cover it with saran wrap. Let it stay like that over night, that keeps it wet and working.
Yes. The cover plastic for covering the car when painting works well also. I keep a few pieces of it for that purpose and it works good with paint remover to keep that wet longer. Usually goes from the car to the trash but lots of it doesn't get much on it.
 
Thanks guys, I will do a few more treatments, hit with wire wheel or brush and soak overnight with plastic or saran wrap. Scotch brite only tickles it at this point
 
I had to paint the inside of a hood a few years ago that had deep pitting on the inside from a battery explosion. I used naval jelly and plastic to soak it after the paint was stripped, plus scrubbing with a stainless bristle brush by hand. It took around 36 hours of soaking, scrubbing it every 3-4 hours during the day.

shKmkqkh.jpg


R1gJYWvh.jpg


gVTLuCih.jpg


CCsW2L7h.jpg
 
Back
Top