Thread: What paint and primer

Couple of recommendations:
1. Rust converter dosen't go well on new or freshly ground steel, therefore, loosen up as much of the old flaky rust as possible using a chipping hammer [wear eye protection], then apply the converter, and then, if there are areas you want to grind, do so after doing the rust conversion, therefore any pitting you don't grind off will already be rust converted and wont bubble your paint.
2. If you have open RHS runners which have rust inside, weld end caps on all but 1 end, put 1 [or more] litres of oil into the runners and then weld on the last end cap. The oil will slosh around in the sealed environment and prevent further corrosion. Best to pour the oil in via a funnel and a piece of garden hose with the trailer on a lean so that the steel around the last weld cap is clean and oil free for weld quality and fire risk management.
3. As above, ring Altex and get their recommendation on the paint system to use.