Sherwin Williams P60G2 longevity Test

[avrojockey]

Originally Posted by rvbuilder2002

Though Sherwin Williams doesn't officially endorse P60G2 as a protective coating unless it is top coated

I literally had a woman at an automotive paint store refuse to sell me primer because I wasn't top-coating it.

[Mel]

Originally Posted by avrojockey

I literally had a woman at an automotive paint store refuse to sell me primer because I wasn't top-coating it.

You need to talk with the store manager. If she is the manager, you should contact the regional manager. What you do with their paint after purchase is none of their business.

[wirejock]

Originally Posted by avrojockey

I literally had a woman at an automotive paint store refuse to sell me primer because I wasn't top-coating it.

I would have made up a story like I'm top coating with a new product. Dihydrogen monoxide.

[romaja]

Originally Posted by rvbuilder2002

Scuffing is clearly superior but the self etching action works very well as long as the surface is cleaned well.

Considering that it doesn't take very long to give parts a quick going over with grey Scotchbrite I think it is worthwhile, but I think some people spend an excessive amount of time on it.

Hi Scott,
Ordered my QB and was so the fuse interior will be primed with P60G2.
Can I scuff and apply interior paint to the cockpit area or do you recommend priming it first with something before the paint coat?

Trying to save weight.

Thanks

[rvbuilder2002]

Originally Posted by romaja

Hi Scott,
Ordered my QB and was so the fuse interior will be primed with P60G2.
Can I scuff and apply interior paint to the cockpit area or do you recommend priming it first with something before the paint coat?

Trying to save weight.

Thanks

Paint formulations aren't what they were 25 years ago.... Now adays, a proper primer coat that matches the paint being used is important for good adhesion / durability.

I recommend a light coat of the primer recommended for the paint you will use. It doesn't even need to fully cover so you can use some extra reducer and mist it on very light which wont add much additional weight.

[chevytoo]

I wanted to use Sherman Williams paint on my project but the distributor here in Abbotsford B.C. is not very friendly. They would not sell to me. I ended up using Sikens primer and Emeron top coat.

[missile29]

Can someone tell me the proper catalyst / reducer to mix with the P60G2?

I'm about to start my RV-10 emp build and this thread has been a huge help deciding whether and what primer to use on the inside. I was able to find a semi-local Sherwin-Williams place that has P60G2 in stock, but there was some confusion on what catalyst / reducer to use. The rep I talked to mentioned that the catalyst was separate from the reducer. I was under the impression that I only needed one additional part to mix with the P60G2.

Thanks!

[wirejock]

Originally Posted by missile29

Can someone tell me the proper catalyst / reducer to mix with the P60G2?

I'm about to start my RV-10 emp build and this thread has been a huge help deciding whether and what primer to use on the inside. I was able to find a semi-local Sherwin-Williams place that has P60G2 in stock, but there was some confusion on what catalyst / reducer to use. The rep I talked to mentioned that the catalyst was separate from the reducer. I was under the impression that I only needed one additional part to mix with the P60G2.

Thanks!

R7 K 44 is the Reducer Catalyst. Most of us mix 1 part primer to 2 parts catalyst. The trick is spraying it very thin. I usually make one quick pass then a second at 90°. Stop as soon as any color can be seen. That's plenty. It turns a beautiful translucent greenish gold color in just a few minutes. You can see markings and the aluminum grain through it.
Clear or clean the gun soon. It sets up quick.

[missile29]

Originally Posted by wirejock

R7 K 44 is the Reducer Catalyst. Most of us mix 1 part primer to 2 parts catalyst. The trick is spraying it very thin. I usually make one quick pass then a second at 90°. Stop as soon as any color can be seen. That's plenty. It turns a beautiful translucent greenish gold color in just a few minutes. You can see markings and the aluminum grain through it.
Clear or clean the gun soon. It sets up quick.

Excellent! Thanks for the advice! It sounds like the trick is going to be mixing up just enough to do one batch of parts and not waste it.

[wirejock]

Originally Posted by missile29

Excellent! Thanks for the advice! It sounds like the trick is going to be mixing up just enough to do one batch of parts and not waste it.

I can help with that too!
Lots of tricks and tips on my blog (link below) including this Epoxy/Paint Calculator.
https://drive.google.com/file/d/1meV...ew?usp=sharing
One of the paints is P60G2. Plug in some dimensions and it estimates quantities of components in ml.