Does extra hardner make 2K harder?

[C Lee Farquar]

I need to repaint some wishbones and uprights on off road racer. Looking to make the paint as durable as possible. So as the title says would increasing the hardner ratio increase the strength, or any other suggestions?

[C Lee Farquar]

Thanks for the replies. I've used Hammerite before and don't think the adhesion is as good as 2k.

Rustman, I have a combination of mechanical wire brush stripped billet steel uprights, sanded 2K painted wishbones and new wishbones. Looking at data sheet the paint does adhere to smooth steel but not sure about overpainting.

To confirm it's not rust I'm worried about, it's some chipping and abrasion and resistance to repeated steam cleaning. So it comes down to whether the Epoxy mastic would do a better job than 2k with flex additive.