I am working on a daily driver pickup truck, the bed is off and the owner will be picking it up in a few weeks to take it home and clean up the frame and treat it. He is not blasting the frame so there will be rust left on it, what do you guys recommend to treat the frame with?
Frame Coating
- Thread starter JC Daniel
- Start date
Moisture cure urethane--silver pigmented if any rust left on. If you have temperature issue with going less than 65F for epoxy-- Aluthane, Mastercoat are a couple. Aluthane is a better value in gallon sizes and not oriented toward the DIY market. Most of these are temp wise good to mid 40F for application with lower humidity.
Whitesnake
Newbie
I’m about to do the same soon on a truck. Just a 15 year old plow/work truck. Just wanna preserve it some. Not worth blasting a frame on a daily work truck in the northeast that plows snow. But would like to keep it from completely falling apart. I’ll clean/grind as much junk off as I can. Thought about just black epoxy but almost seems a waste? Or will it hold up aright for my purposes even though it’s not 100% clean metal? I was considering just a gallon of farm/implement paint or rustoleum satin black with hardener. After whatever coatings I choose to do I’ll likely fluid film it to help protect against the elements.
1A Rock
Promoted Users
I use Rustoleum rattle can on my truck frame. cheap easy and works,
Treeslayer
Mike
you guys have any links for the mastercoat or aluthane? iv never heard of them. could be a good option for heavy equipment or truck frames?
Jim C
Oldtimer
well a moisture cure urethane is what por-15 is. how comparable they are to por-15 though is anyone's guess. we all know how much everyone loves por-15 lol. probably unfair to clump all mcu's in the same (crap) category. would be like saying all clearcoats are the same. probably some good ones and some bad ones. the carc paint we used in the army were all mcu's
Whitesnake
Newbie
Anyone know how spi black epoxy would hold up over grinded/wire wheeled pitted metal. Like I said will still have some rust here and there but big stuff off. Or would it be a waste? Figured I could brush most areas.
Jim C
Oldtimer
Honestly i don't think it matters what you put over it. The rust in pits is going to be your problem. Nothing is going to magically lock that down. It will fester under any coating and eventually fail. In that situation i dont think any one coating will be much better than another.
Whitesnake
Newbie
Darn. I know the fluid film will protect it but was looking for it to look kinda smooth and black again. Would acid etch help at all?
Alutane is epoxyproducts.com>aluthane.
Lizer
Mad Scientist
The Mastercoat silver is an entirely different beast than POR-15. They both use a moisture-cured resin but everything else is different. The silver is aluminum pigmented which is what locks out air and water. But I'd hardly classify it as a crap category, for the right uses it is an extremely durable and effective coating. It can withstand a lot of abuse. I use it on things like frames, my farm equipment, horse trailer, gates, etc. Since it's aluminum colored I also use it for things I want to have an aluminum look.
All that being said, painting directly over rust is a fool's errand and can actually exacerbate the rust by trapping air and water contained within the rust.