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Rear Crossmember Rust Prevention


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Use 1 coat Jotun Jotamastic 87 2 pack epoxy primer (ideally in aluminium finish), 1 coat Jotun Hardtop XP 2 pack polyurethane topcoat. It's supposed to last 15 years in a marine environment which lets face it is what the rear crossmember lives in. The primer is tolerant of preparation standards. It's messy to mix and put on, but 2 years later I can jet wash it and it looks like new. Their Penguard primer sticks well to galv too. I think a very similar primer is available as Jotamastic smart pack but in smaller quantities. You need more paint than normal as it needs quite a film thickness. Marine paint seems miles better than the stuff commonly sold for cars or domestic use.

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