Grit dog
Full Access Member
- Joined
- May 18, 2020
- Posts
- 6,976
- Reaction score
- 12,224
- Location
- Auburn, Washington
- First Name
- Todd
- Truck Year
- 1986, 1977
- Truck Model
- K20, C10
- Engine Size
- 454, 350
So's I went ahead and bought a can of this stuff with the little snorkel tube to try to stave off more rust around my windshield. (Only actual rust on the truck.)
Having a half dozen rotten areas to cut out and patch and several more small holes that will just weld up, I assume the rest of the insides is somewhere in the process of rusting out as well.
The existing rust holes, factory holes and holes from the windshield visor provided enough access to get inside the frame everywhere.
Prior to cutting out any of the bad spots, I gave the whole thing a coat. Also wanted to see how "well" it did afterwards when I cut out the bad spots.
Couple observations.
1. Stuff comes out fast. 1 coat around the windshield all 4 sides used most of 1 can.
2. It appears to actually get into most nooks and crannies and appeared to bond decently to the old/rusty steel (after cutting out a couple bad pieces).
3. Must tape off all holes well. I taped all the holes, but it was still getting through the weld seams with any small gap. (This is a good thing). But it was slobbering out of spots I had to clean up. Glad I did this with the truck all tore apart or it probably would have gotten on parts that I didn't want it to.
4. After welding the patch pieces in and grinding them down, I gave a quick shot of coating again in those areas.
5. It is somewhere between undercoating and paint. Doesn't get super hard and has a thick buildup.
It's not cheap at $20+/spray can, but can you put a price on rust prevention? LOL
Having a half dozen rotten areas to cut out and patch and several more small holes that will just weld up, I assume the rest of the insides is somewhere in the process of rusting out as well.
The existing rust holes, factory holes and holes from the windshield visor provided enough access to get inside the frame everywhere.
Prior to cutting out any of the bad spots, I gave the whole thing a coat. Also wanted to see how "well" it did afterwards when I cut out the bad spots.
Couple observations.
1. Stuff comes out fast. 1 coat around the windshield all 4 sides used most of 1 can.
2. It appears to actually get into most nooks and crannies and appeared to bond decently to the old/rusty steel (after cutting out a couple bad pieces).
3. Must tape off all holes well. I taped all the holes, but it was still getting through the weld seams with any small gap. (This is a good thing). But it was slobbering out of spots I had to clean up. Glad I did this with the truck all tore apart or it probably would have gotten on parts that I didn't want it to.
4. After welding the patch pieces in and grinding them down, I gave a quick shot of coating again in those areas.
5. It is somewhere between undercoating and paint. Doesn't get super hard and has a thick buildup.
It's not cheap at $20+/spray can, but can you put a price on rust prevention? LOL