[forever young]

I had about a 1/2 of a pint of chassis coat that I bought 2 years ago. I tried it today after removing the skin on the top insiide the can. I stirred the bottom solids and got a thick blend. I used a foam pad brush applicator and a cheap brisle brush. It covered well, dried- what seemed to me to be very fast, 15-20 minutes and did leave brush / foam brush marks. Is it possible that the paint went bad and is too thick with solids and not enough other stuff to make it thinner? Can you thin this paint?
Has anybody else had this issue with old POR 15?
Thanks,
Roland

 

[wakefoot]

I used some 15 year old POR-15 recently and it worked very well for what its worth. I used black, silver and grey. Had to stir it up alot to get the solids up and it dried normally, not as fast as yours. Beat on it with a hammer and it is hard as usual. Used the black on my frame, the black looks like it did 15 years ago. I did store it in the fridge most of that time. They do make POR thinner that I have used but I don't know if paint thinner is compatible.

 

[Philip]

Mine set on the shelf in the garage for 15 years unopened. Worked well on my frame, the unused portion has been in a glass jar in the garage refrigerator for 2 years and is still liquid.

 

[NickeyChevelle]

It sounds like you need to thin it down. As shipped, POR-15 should be thined (with POR-15 thiner) by 5 percent, since your POR-15 has dried out somewhat you may have to experiment to get it back to the correct ratio. Start with a small amount of POR-15 and try mixing in one part POR-15 thiner to nine parts POR-15.

 

[JohnC]

FWIW, I've somehow been able to use a jar of POR 15 for well over 10 years since it's been opened. Mind you, I'm sure there have been times when it wasn't opened for a couple of years or so. I think I got the quart size initially then poured what I didn't use into a pickle jar. I'd put two layers of saran wrap over the opening before putting the lid on so that if some of the paint got on the lip or the lid, it wouldn't seal the jar up entirely. I keep expecting that the next time I open it up, it'll be solid, but at worst, there's been a dried layer at the top that you poke through with a paint stick and it's liquid underneath and it's still worked as expected.

I also keep the jar in the garage fridgerator.

 

[Jade]

The Chassis Coat is thicker than the regular POR15 and dries to a tack much faster, after that the Chassis Coat can take a couple days to reach full hardness.

I've never read anything about needing to thin either product as shipped, at least not in any of the info I've read on their website.

 

[Jade]

Oops, I've now noticed comments that state that the Chassis Coat should be thinned if it's to be sprayed...

 

[Keith Tedford]

Check out www.por15.com Lots of good information there on use of their products. I've seen a piece from a thin grocery store shopping bag stretched over a paint can before re-installing the lid. The thin film makes for an air tight seal. In the old garage fridge is good to along with all my bottles of Loctite.

 

[Jade]

I've found that the grocery bags are a little thin and tear. Personally, I've gone to bread bags.

 

[royalplum67]

:hurray:I used to use the POR 15 on my frames, and when I got in a bind and couldn't find some when I needed it, I used Van Sycle's black implement paint from our farm supply store. He showed me his car trailor which has sat out for over 12 years and still looks freshly painted. The total cost of a gallon of it and a gallon of mineral spirits was under 25 and it sprayed on like a dream. I have done two frames with it and still have way over a quart left. :hurray:

 

[Jade]

So I was applying some Chassis Coat today and I swear that the stuff dries between brushstrokes.....

 

[glide]

So I was applying some Chassis Coat today and I swear that the stuff dries between brushstrokes.....

I had the same experience with the Chassis Coat. It definitely doesn't level out as nice as the regular POR15. Do you like how it looks finished? I don't think I would ever use it on a real visible piece. You can see the brush strokes too much.

 

[Jade]

I had the same experience with the Chassis Coat. It definitely doesn't level out as nice as the regular POR15. Do you like how it looks finished? I don't think I would ever use it on a real visible piece. You can see the brush strokes too much.

My application was on an off-road vehicle, so appearance was not paramount. Personally, I think it looks like it was painted with a barn broom. I'm not even sure that I'd want it on the frame of my El Camino. As it's not exposed to direct UV, I would look at going with a non-gloss variant of the regular POR15.

I'm thinking that if the plan were to brush Chassis Coat on the EC (maybe in a few years), I would experiment on something else and do as suggested when spraying it by thinning it out some.

 

[Philip]

The finish is awful, it does not look even whether brushed or sprayed. My inner fenders were out so I scuffed them and shot some Martin Senour Underhood black. Now they look great and still have the POR under them for protection.