por 15?

[the intimidator]

hey guys i know this has been discussed somewere before but i cant find it now anyways i am just wondering if this would be suituble for a snow plow it is only a small plow 54" i realize this stuff is expensive lol but after 2 seasons i am seaing some nasty rust forming and i want to repaint it and have it last for a good long time would por 15 be suitible for this application i use the plow to push gravel in the summer too so i need something that is strong. also can you paint the por 15 with any old rust paint tremclad ect the website says it will yellow when exposed to light rite. also what would i need to do to weld on the plow for repaires ect would i just grind the stuff off like i would a painted surface and weld away or do i need to do something speacial lol.

I also heard that a lil goes a long way so how much would i need to paint the plow 54'' long 13'' high and abought 10 feet of 1x1 square tubing? now for the big question what do i need in terms of resperaters ect to just brush this stuff on i wont spray it but i have heard some horror storries abought guys who have sprayed this stuff. thanks guys

 

[Homercules]

I have used POR15 many times on my 4x4. The stuff is very durable but expensive. Some tips:

1) It says you can apply it over rust but I recommend removing it as best as you can first. It will stick better.

2) It is strange stuff, it cures in the presence of water so you should not paint from the can but put a small amount in a in separate container. It will start to dry immediatly so you won't have a lot of time in high humidity.

3) I recommend using a brush. Buy lots of cheap brushes cause you can't clean them!

4) Don't get it on your skin! I did and had to wait 3 weeks before it eventually wore off. It literally stains the skin.

5) POR15 dosen't stick to itself when fully dried so time your second-third coats while it is still tacky.

6) It says it will fade in the light and I guess mine is a bit faded but it dosen't yellow. You can also throw a topcoat of tremclad or something to UV protect it but it would wear off quickly on a plow.

7) Don't get it on any parts that might have to be removed later ie bolts, threads etc. No fun using a chisel to get a bolt off!

8) Buy it by the pint. It shoud cover your parts with 1 pint but maybe 2 is needed with multiple coats.

9) After you have used it seal it up in plastic and put it in the fridge and it will last a long time.

 

[Homercules]

Hey that was my first post?!

I've been reading this board since December and I only posted now?!

 

[stimpy]

we use por 15 exclusivly on undercarriages of restored cars ( not concours) they recommend you use a tie coat(there product) to put other type paints over p15 like he said buy a load of cheap brushes and don't lay them on something and forget about it ( our bench needs a shave from the wiskers) as for resperator its more for the smell of the stuff just use a organics cartridge ( charcoal ) if you spray it its another story as the stuff will catalyze in your lungs from the water. the best stuff I have used for snow plows has been Rustoleum Industrial enamel (alykd) with a touch of hardner ( enamel ppg) prep the blade sand /wirebrush , then red oxide prime it then shoot or brush the paint on , let it flash for 24 hours then recoat then I let them sit in the sun for a week . I did this for a school and the blades held up real good especially when they ran the blades on a gravel parking lot and then used them to push sand in the summer . one thing I know they did was they waxed the blades with a paste floor wax when I sent them to them and polished them out .. I think this helped it alittle .

 

[byrdman]

I've had good luck using POR15 on surfaces that won't require a finish coat. You should look into their "Hardnose" paint for something like a plow, if I remember right it's made to go on over POR15.

Reread Homercule's comments, he speaks the truth!

 

[the intimidator]

ok thanks guys i think i will go with the por-15 and a top coat of tremclad ect that will be easy to tuch up. do you guys recomend sand blasting down to bare metal before applying or would a paint stripper and a wire brush be good enough? i am going to be doing this in the spring so i'll post my results when i get it done thanks for the help

 

[chevy302dz]

I would sandblast it if possible, it leaves the surface a little rougher and the paint tends to stick better.

 

[stimpy]

blast it ! we leave the undercarriges raw till we p15 them ,, the only problem we have had to date was trying to remove it to do some welding it grabs hard ..

 

[bgarrett]

You CAN wash the POR 15 out of brushes. I have been doing it for years. Use gasoline.

chevy302dz, any sandblasting I do is light. Just to get loose scale and caked rust off. Anytime I go to bare metal, I allow it to begin to rust again before appying POR

I have also learned that 80 grit paper on my grinder gets POR off pretty good

 

[rockford33]

A little off topic, but I have used POR-15 before and if I recall, they suggest you use their Metal Etch before painting with POR-15. Is this step necessary from your guys experience? I would think it would be hard to soak an entire plow blade in the Metal Etch stuff for the recommended 20 minutes. It was a pain when I coating the top heads of the bolts for my car!!

 

[bahamasair]

You have to use metal ready to etch if you are going to paint over shiny or smooth metal. POR15 wants a porus or rough surface to bond to.