Personally I use a product from Repco called Fertrans.
I wire brush the area and remove as much rust as I can.I then paint or spray the area with Fertrans which converts the rust to an organic black compound.I then paint the area with a Zinc Rich spray paint.Black,white or grey available.
Works very well and stops the rust dead.
I have never liked the phosphoric acid types of rust treatment and much prefer the Repco stuff.
Yes That's the stuff.Converts the rust to an Organic compound/It's better to have some rust to convert.If you grind it back to bare metal there is nothing to convert.
Thanks from me too. I have a metal door 'jam' or whatever at home that has a small rust spot. Have tried the phosphoric acid stuff & the rust is back ... Will try your solution.
I would suggest those rust converters have limited success.
Try wire brushing to remove rust a metal primer then 2-3 coats of bitumen really thick, leave it to dry a few days then get a spray can of black enamel .
The bitumen will form a decent barrier preventing moisture corroding the steel therefore corrosion is stopped for as long as that barrier remains effective.
I've had considerable experience with using cold gal. It's zinc rich and this is its main property. Just wire brush the rust off and paint on with brush (beware it dries quickly so get set up and get it on quick and dont overbrush). Can buy at hardware. Use brush and throw away after use as it's a waste of time trying to reuse the brush.
2 links below give you the info to confirm above (couldn't get it as URL underlined as yet, as I'm a newbie to GN).
I've had considerable experience with using cold gal. It's zinc rich and this is its main property. Just wire brush the rust off and paint on with brush (beware it dries quickly so get set up and get it on quick and dont overbrush). Can buy at hardware. Use brush and throw away after use as it's a waste of time trying to reuse the brush.
2 links below give you the info to confirm above (couldn't get it as URL underlined as yet, as I'm a newbie to GN).
