Need a STRONG Chemical rust remover
 

Were rebuilding an 81 Chevy K10 shortbed from the frame up and putting an 80 body on it. But we need to get the rust on this K frame cleaned up so we can paint the thing. I started sandblasting it with my little 5 gallon sandblaster in the driveway but this is just way too much work. So I decided we would try some chemical solutions.

So I need a GOOD STRONG chemical rust remover, any suggestions? Eastwood has a couple different products like their oxisolv, but I don't know how strong these are? I'v tried the little spray bottles of gel from advance auto, but it just doesn't seem strong enough to get this rust off.

Re: Need a STRONG Chemical rust remover
 

you may be better off and it may be cheaper to take the frame to the sand blast man, if you have one in your area. around here the cost is 75-100 bucks. good luck

Re: Need a STRONG Chemical rust remover
 

I'd look into coating it with POR 15. IT works well and you do not remove the rust first, only have to knock off any lose scale.

Re: Need a STRONG Chemical rust remover
 

We used something similar to that on our jet ski trailer we built, it had nasty rust on it that would take forever to remove, some of the frame is like this its worst inside the frame rails where its hard to get to. But the rust converter stuff seems to have worked well on that trailer, so maybe that could be a good option.

Guess I could call around and see how much to have it blasted, but were tight on money, so the cheapest way is the best way here lol.

Re: Need a STRONG Chemical rust remover
 

Por-15 would probally be more expensive than sandblasting but from what I have heard por-15 is virtually impossible to remove when cured

Re: Need a STRONG Chemical rust remover
 

You might also want to post your question in the paint/body section of this board. There are some really knowledgeable folks there.

You won't be lacking for opinions in what to do ;)

Brian

Re: Need a STRONG Chemical rust remover
 

Well a gallon of por 15 will run you $100, but it will be more than you'll need. I coated an entire jeep frame, 3 coats and used about a half of a gallon.

You can bruse it on, or thin it to use in a spray gun, which will go even farther then.

The stuff works well too, again, all you need to do is go over the chassis with a wire brush and apply.

Just make sure to wear gloves and long sleeves, this stuff really is permenent.

Re: Need a STRONG Chemical rust remover
 

And Por 15 is a rust converter right? So you just get the scale off and any loose debri and just spray it on? I have a spray gun and compressor, so that could be easily done. Plus i'm sure we could use it on the bottom side of the body and what not after we patch it up.

Re: Need a STRONG Chemical rust remover
 

you might also wanna go to the paint and body forum and read the sticky at top entitled "what the hell happened" just for the heck of it ..:)

Re: Need a STRONG Chemical rust remover
 

Yeah, just take a stiff wire brush and knock all the lose stuff off. I have always brushed mine on, and never had any problems. If you were going to spray it on, I'd definatly use a forced air resperator.

check out the site, www.por-15.com for lots of info.

The entire bottom of my IROC and dads 55 are coated in it. No need to use a top coat on under vehicle areas either.

Re: Need a STRONG Chemical rust remover
 

i use por-15 on all my restores, stuff does work, if applied the correct way you can not chip it, best way to do it is get the metal ready spray the frame then wash it off, then use the metal prep wash it off, then apply the por-15. if the sun does not hit it you don't need a top coat. only top coat you can use is por-15 unles you use there primer.. good luck

Re: Need a STRONG Chemical rust remover
 

Yeah the metal ready is good, esp. on clean metal that is not rusted, as it gives the metal teeth for the por 15 to adhere to. Mearine Clean is another product of theirs that is a great non toxic degreaser.

Re: Need a STRONG Chemical rust remover
 

A buddy of mine was telling me the other day that POR15 has a new product out that is suppose to attack and neturalize the rust more agressively than the old stuff did but he didn't remember what it was called.

There is also a product that works very well it's called OSPHO it's mainly used in the marine industry. go to www.ospho.com

I've used this this stuff for over 20 years now and it's great stuff i had a front bed panel i got new and it was bare metal and i knew i wasn't going to install it rght away and i treated it with ospho and 2 years later when i pulled it out of the box it didn't have any rust on it down here in Fla. we have high humidity year round.

Re: Need a STRONG Chemical rust remover
 

You might also want to check out Zerorust. It's a little easier to work with and cheaper than POR15.

I have yet to use it but, I am going to use it on my truck.

Re: Need a STRONG Chemical rust remover
 

Have you considered having the frame galvanized? I'll have to find the post but someone in the 67-72 forum did it recently. Since this is a 4wd that would make the frame very durable for 4 wheelin...:)

Re: Need a STRONG Chemical rust remover
 

I sure dont know anything but what read here .but can you just spray Pors ,dont you need special breathing stuff to keep from causing lung damage or worse

Re: Need a STRONG Chemical rust remover
 

You can spray it but POR contains Isocyanates. Nasty Stuff, read this note about Isocyanates on the stovebolt page.
I imagine that as long as you are brushing POR on in a well ventilated area you should be OK. If you are going to spray it then you should probably use a professional booth and an air supplied respirator.

That's what got me looking at Zerorust in the first place, it doesn't contain any Isocyanates. I plan on doing my painting myself at home so better safe than sorry. Zerorust can be painted on like POR as well, that'll make doing teh frame and underside easy.

Re: Need a STRONG Chemical rust remover
 

I probably wouldn't spray it, I don't need that stuff getting on anything else, so brushing would be best method, plus I don't have the respirator equipment, just the spray equipment for paint.

I'll ask the Fiance what she wants to do as its her truck, i'm just trying to find some options before we move ahead, gotta get this frame ready so its new body can go on!

Re: Need a STRONG Chemical rust remover
 

Dang Zippy,

Are you gonna wait 2 weeks to a month for that stuff to cure? Thats a loooong time to wait befor you can top coat your surface.

That could add years to a resto job if you coat every panel front & back & every crack inbetween like that article states.

I don't know how long Por15 takes to cure but i do know that Ospho cures in hours not weeks or months thats big if your on a time budget.

Re: Need a STRONG Chemical rust remover
 

Where did you read that??

Their website says it can be top coated in 30 minutes to four hours. At least if you use the crystal coat top coat.

http://www.zerorust.com/crystalcoat.htm

Re: Need a STRONG Chemical rust remover
 

In that link you posted at the stovebolt page its just about even with the 2nd truck pic with the drivers side hood opened.

It states "Once fully cured, Which can take two weeks to a month, ZeroRust holds up well to all automotive fluids, including petroleum products(oils and greases). ZeroRust will even hold up to race fuels."

Maybe it took that long for his to cure due to the climent where he lives where ever that is.

Or maybe that dude just didn't use the product correctlly i dont know which but whatever the case may be thats what it say's.