I am about to begin attacking the rust once again on an '85 rx-7 before the roads get salted in Calgary, Alberta. I have been slowly becoming more and more familiar with attacking rust as the years have gone by, and just found this forum very recently.
In the past I've used a product from May-Hyde called One-Step. It is a rust converter, turning the rust into a hard black surface that can be painted. I've had much better luck with their liquid product than their spray product, and now I can't find their liquid product locally, so I'm searching for something else, maybe better. I've also found that it's very important to get good paint instead of some generic can of touch-up paint. The touch-up paint bonds very poorly and doesn't last at all.
Reading here I've just learned about POR-15. It seems to be similar, but possibly more effective in the chemical reaction? And the resulting surface seems to be harder; the One-Step surface is moderately hard, I'd say.
The new car I'm about do also has a number of mainly bare metal spots, and One-Step doesn't stick great without the rust to use. POR-15 seems to be the way to go, but how well does it stick to non-rusted metal? Also, can it be painted? I've had good luck with painting one-step. And if it can be painted, why do people complain about the color not matching their cars?
And finally, in the past I've taken a very small screw driver, sharpenned it, and used that to basically trace around the outside of rust areas until I get to good fresh metal so that I know the rust is not creeping out from where I just repaired. This seems to work quite well, but it leaves a ridge around the perimeter of the repair area. What would be the process if I wanted to try getting that part of it looking better? Can I get half-decent results on these areas with enough TLC?
Thanks for the help everyone.
In the past I've used a product from May-Hyde called One-Step. It is a rust converter, turning the rust into a hard black surface that can be painted. I've had much better luck with their liquid product than their spray product, and now I can't find their liquid product locally, so I'm searching for something else, maybe better. I've also found that it's very important to get good paint instead of some generic can of touch-up paint. The touch-up paint bonds very poorly and doesn't last at all.
Reading here I've just learned about POR-15. It seems to be similar, but possibly more effective in the chemical reaction? And the resulting surface seems to be harder; the One-Step surface is moderately hard, I'd say.
The new car I'm about do also has a number of mainly bare metal spots, and One-Step doesn't stick great without the rust to use. POR-15 seems to be the way to go, but how well does it stick to non-rusted metal? Also, can it be painted? I've had good luck with painting one-step. And if it can be painted, why do people complain about the color not matching their cars?
And finally, in the past I've taken a very small screw driver, sharpenned it, and used that to basically trace around the outside of rust areas until I get to good fresh metal so that I know the rust is not creeping out from where I just repaired. This seems to work quite well, but it leaves a ridge around the perimeter of the repair area. What would be the process if I wanted to try getting that part of it looking better? Can I get half-decent results on these areas with enough TLC?
Thanks for the help everyone.