paint

[thirstycanadian]

I want to repaint my rusty factory air cleaner.  This might be a stupid question, but would I be better off using high temperature paint, or would regular rust paint work?  I know it doesn't get nearly as hot as the exhaust or anything, but I would hate for it to degrade due to the temperature.

Thanks  

[Blazin]

I would use a wire brush and maybe 100 grit sand paper to knock the heavier rust down and use POR 15. You can paint over POR 15 but you don't have to. If you do it needs to be done right away, any more than several hours paint won't stick to POR 15.

[123 pugsy]

You don't need high temp paint for the air breather.If you are going to use spray bomb paint,it will need a shot of primer even if you are using "rust" paint.Don't be fooled by "Rust" paints.

As Blazin mentioned,POR 15 is the only "TRUE" rust paint that can be applied directly over rust.

I do believe you can paint over it after its cured if you scuff the surface for good adhesion.

[Blazin]

It says right on the can the only way to paint over it is right away or use their brand of self etching primer. If you use POR make sure the edge of the can and the lid look like brand new before closing it up. If not you will not get the lid off without destroying the can.

[roundedline]

You also can scuff it with 600 grit and paint over it, but I use the method Blazin listed.


TO TOPCOAT A FULLY CURED POR-15 SURFACE:
Wet sand with 600 grit until gloss is dull, then paint, or use POR-15 Tie-Coat Primer directly on the cured POR-15 surface, then topcoat as desired. NOTE: Never topcoat a POR-15 surface that hasn't dried, as this will ruin the coat already down.

Use POR-15 Solvent or lacquer thinner for cleanup, which must be done before POR-15 dries. NOTE: Organic vapor particulate respirators, NIOSH/MSHA approved, must be used when spraying POR-15.

Moisture will shorten the life of unused POR-15. See our 'Residual Moisture - Little known Facts' page to learn some little-known facts about residual moisture.

Seal can or jar immediately after using. We recommend placing plastic wrap between lid can and storing in a cool dark place.

Chris Lucas
www.73-87chevytrucks.com
www.captkaoscustoms.com
Project Su
Jimmy 2WD Project

[Nikodemus]

You can apply POR-15 directly over rust?  

[thirstycanadian]

thanks for the input guys.  I think I will look for some Por 15.

[Blazin]

light surface rust not scaly or heavy rust. Oh yeah were rubber gloves, and wash any off you get on your face or armsright away. If not you will be wearing it for about a month maybe more! Iwent and read a can today. Chris is right it says you can wet sand with 600 till dull and paint will stick to it.

Edited by: Blazin at: 11/3/06 6:46 pm

[Nikodemus]

Haha ... well I didn't think it was the cure to car cancer or anything I'm just surprised you can apply that stuff on surface rust.  

[Blazin]

I have always heard over the years it was the cats but. I used it for the first time a few years ago and it does work. I was always skeptical about going over rust as well. I decided to put it to the test.
I built a rear bumper from a peice of used 8" I beam for my 86 a couple months ago. I blasted the heavy rust off and left it outside along with my freshly blasted front bumper and rims. Got a nice coat of orange color to them. I ran the DA over with 180 grit and wire wheeled them. I applied POR 15, painted the rims with acrylic enamel, and coated the bumpers with SEM spray on bed liner. I will keep everyone posted on how they hold up.