Browse Forums General Discussion 1 Apr 29, 2024 12:41 pm Hi l have some steel i beams under my house with some light surface rust, the beams are not galvanized . My plan is to sand off the rust and then paint it directly with cold galvanized zinc paint . is that the correct way to do it and the correct paint to use? or should l use a different paint or a rust converter . Re: Removing rust from steel i beams 3May 01, 2024 8:32 am Pulse Jimbo did we not have the same question 3 months ago? yes but l am still undecided how l should treat the steel beams after l sand off the light surface rust, the beams are not galvanized, should l paint them with cold galvanized paint, or white knight rust quard primer, or not paint them at all buy just apply fish oil over them Re: Removing rust from steel i beams 4May 02, 2024 5:25 pm If not in direct contact with water (like rain) and not in a moist environment (like over water) and provided there is good air circulation and provided it is only "light" surface rust and assuming it may take a few uncomfortable hours of sanding...... then I would not bother with sanding and just coat it with a couple of generous coats of fish oil. Use spray cans or if that is too expensive buy a can and paint on with a big paint brush. Re: Removing rust from steel i beams 5May 02, 2024 7:21 pm gommeqld If not in direct contact with water (like rain) and not in a moist environment (like over water) and provided there is good air circulation and provided it is only "light" surface rust and assuming it may take a few uncomfortable hours of sanding...... then I would not bother with sanding and just coat it with a couple of generous coats of fish oil. Use spray cans or if that is too expensive buy a can and paint on with a big paint brush. thanks, yes they are dry , thats a good idea with fish oil as sanding will be hard if l cannot get a sandblaster would a sander with sandpaper be better then a wire brush 4 7518 THanks , l got a licensed building inspector to look at the rust, he said its just surface rust and it would take many years to become a problem because the beams are so… 22 28419 That just protects from further rust, l want first to apply a rust converter or rust killer to kill the rust thats there, whats the best one for galvanized steel 2 7991 |