PPG Epotec 408 Primer Surfacer over Rustseal?

[Truckguy]

Hi, working on a truck at the moment. I've done used the 3 step on the chassis and Blacktop as a topcoat.

 

I've ordered PPG 625 2K for the engine bay, bullbar and tray and had it colour matched to the vehicle colour. I have used a needle scaler and sanded to take all the paint off followed by Aquakleen and Rustblast, it's pretty good, but I'm not going to sandblast it to get a perfectly clean surface, I'm planning on a couple of coats of Rustseal before overcoating. They have recommended Epotec 408 primer surfacer under the 625 Polythane. Any compatibility issues/reactions over Rustseal? Would best idea be to spray the 408 primer surfacer a few hours after Rustseal before it has fully cured? Hoping to avoid having to scuff it all up.

[KBS Coatings]

Yes, Epotec 408 primer surfacer will adhere to RustSeal. Apply Epotec 408 primer surfacer once the second or final coat of RustSeal is dry-to-the-touch and does not leave a fingerprint (usually 3-6 hours depending on temperature and humidity).

 

Please reply with any additional questions that you may have.

[Truckguy]

Thank you, that's great. I have one other question.

 

It's been a few days since I did Aquakleen and Rustblast on chassis and bodywork, I've since painted the chassis and been moving around the vehicle quite a bit. Is there anything I can give the body a wipe down with before applying Rustseal just incase I've touched it and got any oil or grease on it? Prepsol, a damp cloth, a wipe down of weak Aquakleen solution followed by a damp cloth?

[KBS Coatings]

Yes, use a very mild solution of KBS Klean (1 part KBS Klean and 25 parts warm/hot water) to wipe down the surfaces.

 

Please reply with any additional questions that you may have.