PabloPicasso
Well-Known Member
Cast iron keel has artist spots on. My plan is to use Freetown rust converter, then prime and anti foul. But which primer?
Keel rust
- Thread starter PabloPicasso
- Start date
sarabande
Well-Known Member
Primocon seems to be very popular. Jotun make a two-part epoxy called Anti-Pest which is also specced for cast iron.
The key will be proper surface treatment (ablation ?) and then ensuring that the cast iron doesn't have any chance to rust bcs of atmospheric moisture.
Based on trying various rust converters on iron gates over the years, I'd hesitate to try and convert iron oxide to anything approaching the solid, continuous, material needed for successful adhesion of a primer, however good.
The key will be proper surface treatment (ablation ?) and then ensuring that the cast iron doesn't have any chance to rust bcs of atmospheric moisture.
Based on trying various rust converters on iron gates over the years, I'd hesitate to try and convert iron oxide to anything approaching the solid, continuous, material needed for successful adhesion of a primer, however good.
VicS
Well-Known Member
International Primocon or Blakes Keel Prime
See the product Data sheets for all the gen.
William_H
Well-Known Member
Best to attack the keel with an angle grinder with course sand paper on a rubber backing pad. Get it down to shiny metal then rust converter and epoxy as suggested. good luck olewill
savageseadog
Well-Known Member
No substitute for thickness, whatever the primer. Put lots on.
KellysEye
Well-Known Member
Definitely get back to bare metal then to stop rust coming back apply two coats of zinc rich epoxy primer - having owned a steel boat that's what we did.
