Anybody use Por15?

[70sixpkrt]

Anybody use Por15 to stop rust on their trunk floor?

[Mike DC]

   
To cover decent metal?  Yeah.  I've used it.   

It is strong stuff but it has adhesion and sunlight and topcoating issues.  The only way it works is if you take the drastic step of following the directions.     



Would I use POR again?  I dunno.  Depends on what I was doing.  It's good, but so is epoxy primer.  EP has fewer complications & limitations.  I'm not big into trying to cover surface rust with paint either.  Some people are. 

[70sixpkrt]

I've got some rust from my trunk mat. No holes but want to treat it.

[Dreamcar]

Look into Chassis Saver. Almost the same as POR, but a little easier prep. Like POR, prep is key.

[Canadian1968]

I've got some rust from my trunk mat. No holes but want to treat it.

Sounds like it is pretty minor ? I would take a wire wheel , on the end of drill and remove the rust , or as much as you can . Then spray an epoxy primer on there and top coat if you want . I am a big fan of SPI epoxy , high zinc content , easy to use , hard and a rock once fully cured !

[Charger-Bodie]

Look into Chassis Saver. Almost the same as POR, but a little easier prep. Like POR, prep is key.

I also recommend chassis saver.

[1974dodgecharger]

Look into Chassis Saver. Almost the same as POR, but a little easier prep. Like POR, prep is key.

I also recommend chassis saver.

is it resistant to brake fluid?  I had brake fluid drip on my POR15 rails and took the POR15 off like butter.

[Dreamcar]

Look into Chassis Saver. Almost the same as POR, but a little easier prep. Like POR, prep is key.

I also recommend chassis saver.

is it resistant to brake fluid?  I had brake fluid drip on my POR15 rails and took the POR15 off like butter.

http://www.magnetpaints.com/underbody.asp

[jaak]

I've got some rust from my trunk mat. No holes but want to treat it.

Sounds like it is pretty minor ? I would take a wire wheel , on the end of drill and remove the rust , or as much as you can . Then spray an epoxy primer on there and top coat if you want . I am a big fan of SPI epoxy , high zinc content , easy to use , hard and a rock once fully cured !

I agree.

Jason

[1974dodgecharger]

I have bought probably 6 gallons of POR15 each gallon I think was 90 bucks?  Don't remember, but that chassis seems a lot cheaper......

Look into Chassis Saver. Almost the same as POR, but a little easier prep. Like POR, prep is key.

I also recommend chassis saver.

is it resistant to brake fluid?  I had brake fluid drip on my POR15 rails and took the POR15 off like butter.

http://www.magnetpaints.com/underbody.asp

[Brock Lee]

I have used Por15.

As mentioned, it is important to follow directions and the claims it doesn't hold up to UV exposure is absolutely true. I did my floor pans with it 10 years ago. I did not paint over it. I just pulled back the carpet recently and the areas under the carpet look as good as the day I painted it. Areas not covered by carpet getting even residual amounts of UV is flaking off the metal.

[70sixpkrt]

I'm just using it for small area in the trunk. Don't know what to use but just want to stop the rust from getting bigger.

[Dreamcar]

I'm just using it for small area in the trunk. Don't know what to use but just want to stop the rust from getting bigger.

You might not even need to make this complicated at all if there's no moisture getting in the trunk. You would probably be ok just taking a brass wire wheel on a grinder and removing most of the rust. Then shoot some rustoleum primer and topcoat or something similar, which if I'm not mistaken is made to go over rust anyway. Unless you have something scratching the paint back off or unless your trunk is always submerged, you will likely be ok, all for no more than $20

[Old Moparz]

Another product to consider is made by PM Industries called Mastercoat. I've used this on many car parts & the rusty steel lally columns in my basement. A friend turned me onto it about 20 years ago & said he likes it better than POR 15.

http://www.masterseriescoatings.com/index/

I bought high temperature coating from them but have not tried it yet. Hope to soon & will see if it's any good.

[ACUDANUT]

Don't use it for areas that sunlight hits. 

[440]

What about rust bullet? It's expensive though

[Dreamcar]

What about rust bullet? It's expensive though

From what I've read, POR, RB, and CS are all about the same except for a few differences in prep. As mentioned, I tried CS and liked it so far. Their customer service has been second to none. But like I also said, for 70sixpkrt's issue, any one of these may just be overkill and more $ than necessary.

[HeavyFuel]

The best way I used POR15 was to coat my differential, k frame and front bumper supports in it, wait a few hours for tack-up, then shoot it with SEM Trim Black.

The results are awesome, and bulletproof.

[bill440rt]

I used POR-15 on my floor pans/undercarriage, interior area, inside the frame rails after removing the trunk floor, etc. This was after sandblasting.
It likes a CLEAN, rough surface to adhere to. If applied over a smooth surface it will peel. This is why they suggest a clean rusty surface (after wire brushing). A clean metal sandblasted surface is ideal as well. Just make sure it is clean & free of oil/contaminants. They do not recommend the use of a solvent-based cleaner, either. You can use their water-based degreaser instead, or similar product.

As mentioned it is UV sensitive & must be topcoated. On many areas that needed to be painted I applied their self-etching primer over the cured POR-15 (it's intended purpose), & then topcoated with paint. It's held up great so far now going 8 years.

Just be sure to read their tech sheets & follow them closely.

[Lord Warlock]

I used it on the entire interior floor after grinding/buffing all the surface rust off (after taking out the carpeting and pads there was a lot of minor rust that came off easily.  A little tends to go a long way, follow directions and don't get any on you or you'll wear it for a few days afterwards.   (wear gloves)

[Cncguy]

Alright, I've been thinking this over for about two weeks wondering. If I paint the insides of my frame rails with por-15 or rust bullet what happens when you weld on them? Welding the floor pans to the rails will generate some heat. So won't this damage the coating?

[68charger440]

Alright, I've been thinking this over for about two weeks wondering. If I paint the insides of my frame rails with por-15 or rust bullet what happens when you weld on them? Welding the floor pans to the rails will generate some heat. So won't this damage the coating?

Yes, you will have to reapply for a couple of inches around the area after welding, but the mating metal you are welding should be free of rust to begin with so you are just reapplying to anything that is close to the weld that has been treated.

[pipeliner]

The best way I used POR15 was to coat my differential, k frame and front bumper supports in it, wait a few hours for tack-up, then shoot it with SEM Trim Black.

The results are awesome, and bulletproof.

That's how I use Port 15 with awesome results. I've used Rust Bullet also and it Does not work nothing like it says it does. I used some of it as a natural metal color with 3 coats and rust is coming through it after I sand blasted it lol

[stripedelete]

Save some money.     1:3 penetrol to boiled linseed oil. 
Brush it onto (wire brushed rusty surface).  Then paint.   I use rustoluem.

Skeptical?  I was too.   Try it on a trailer or a piece of equipement.