Hi Folks;
I am restoring a '56 Cessna 172 and I just can't get the old paint off the wings and struts.
I've tried two different acid based strippers, the last being CPC.
Usually the top coat comes off but those under, especially the primer won't budge.
I tried to "scruff" the paint-didn't work
I cleaned off any residual film barrier with MEK-didn't work.
I tried covering the wet stripper with sheet plastic to hold the solvents-didn't work.
Any suggestions?
Roy
Have you tried Klean Strip KS-3? I have found it to remove just about anything, including really old green chromate primer. Stiff plastic brushes and scrapers are a must for areas that don't bubble and lift well. Some paints just smear around instead of bubbling up.
I'll give it a try. This paint and primer is stuck like bad reputation.
thanks a bunch
Roy
Most shops use a lightly hand stroked wire brush in the wet stripper, followed with scotchbright to polish any scratches from the wire brush.
I know the wire brush isn't recommended in the books. But it actually makes the paint stick better.
Don't use a wire brush if you intend to go bare polished aluminum.
If a wire brush is used, make sure it has SS bristles. Use of Scotch-Brite will also preclude a having a polished finish. Can never get those scratches out.
The least effort paint removal method, especially old paint like that described, will be soda blasting. It's just not practical for a lot of applications.
concur strongly with Marty. using a steel brush will embed bits in the aluminum, ensuring future corrosion. ref - navy (now all military) corrosion control manual.Originally Posted by martymayes
buddyamine swears the best paint stripper he's ever used is DOT 1,2,or 3 brake fluid; takes off anything he's ever spilled it on if it sits overnight, but washes off easily with soap and water. i've never tried to verify. you probably have some in the garage to experiment with, right?
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