Por15

[xtiaan2000]

So what is the process? Bare metal- Por15- Bondo- then paint? Or Bare metal- Bondo- Por 15 - then paint?

 

[bobm]

xtiaan2000, Por15 on bare metal, then bondo.

Thanks Bob.

 

[xtiaan2000]

cheers!

 

[bogus one]

Bob got it

be careful with the Por15, it's runny as hell

 

[bobm]

Dont come off either. Wear gloves.

Thanks Bob.

 

[xtiaan2000]

the por creates little brush stroke lines. do I sand this all out to get a smoother paint job? The areas that I am going to be using bondo should be sanded a bit as well to rough the surface up, right?

 

[bobm]

What kind of brush? I use the foam ones and it comes out pretty smooth. And if the metal is bare sand before bondo.

Thanks Bob.

 

[xtiaan2000]

I used one of those cheap brushes, next time I'll go with the foam style.

 

[LC_Hamma]

the por creates little brush stroke lines. do I sand this all out to get a smoother paint job? The areas that I am going to be using bondo should be sanded a bit as well to rough the surface up, right?

I've painted the undersides, suspensions, frames of 2 trucks with those cheap throw away brushes & never once did I notice any brush strokes (I use semi gloss only). I guarantee you had some oil or other residue on the surface before you painted it. Always cover up the can after use & make sure it's totally sealed. I use Saran Wrap under the lid before I secure it. Use nitrile gloves EVERY time you use the POR15 product.

 

[xtiaan2000]

Cheers! got it. once again Ih8mud crew giving the straight beta!

 

[Devils Paw 80]

You're supposed to use their "primer" before applying the POR-15. It can work well but Rust Bullet is a better product, IMO.

 

[LC_Hamma]

You're supposed to use their "primer" before applying the POR-15. It can work well but Rust Bullet is a better product, IMO.

The primer is only needed when you let the POR15 cure. You paint right over "tacky" POR15 with your final coat of choice. Doesn't sound like you read their directions or used the product. I've used at least 6 different products from Resto Motive Labs all with excellent results.

 

[Devils Paw 80]

Where does the OP mention painting over the POR-15? From POR-15 literature:

"..The result of all this is that ordinary steel varies
widely in the manner in which it accepts coatings. Although some commercial steel provides an excellent surface for
coatings, you are just as likely to find steel which gives poor adhesion and poor rust resistance, even with good coatings.
Often the same mill will produce both very good and very poor surface quality, depending upon a number of uncontrolled
factors. Nearly all of the above problems can be overcome by using METAL-READY before you coat with POR-15 Rust

I've used both, and Rust Bullet works better.

 

[LC_Hamma]

Tie Coat Primer is what you use when you've let the POR15 cure. Metal Ready is what you use to treat steel that needs to be etched if very smooth textured OR to kill the rust from spreading. How would you treat the rusted steel before you paint over it with your Rust Bullet?

 

[Devils Paw 80]

You don't, that's the beauty of it. It's idiot proof, for guys like me. Well, you're supposed to remove loose stuff and dirt.
I've had mixed results with POR-15, nothing but great results with Da Bullet.

 

[LC_Hamma]

I guess it all depends on how you value your Cruzah & it's longevity.