Re.plastered shower room.Rust has come through the plastering by the window.?

Question

What is the best way to go about resolving this before I repaint?

Answer 1

There is a rust treatment catalyst you can buy . I know of one brand which is named rust treatment. Scrape off as much of the rust as you can and then paint it with catalyst. It turns rust into a plastic black coating. Afterward you can painted over with any thing you want. Follow all directions!

Answer 2

I'm wondering where the rust is coming from? If you don't find the source, cleaning it up will just be a temporary fix.If you know what it is from, first thing to try to clean it is white vinegar. Then just use a good primer. If it's a small area, use an oil based spray. Killz is a good brand. Then you can paint with any paint you want. Semi gloss or gloss is best for a bath area.

Answer 3

Is it a narrow(ish) strip along the edge between the reveal and the wall? If so, it will be that they have used this stuff, and the galvanizing has broken down.
http://www.toolstation.com/shop/Hardware/BuildersMetalwork/d170/sd2836

Best thing to do, is take off the plaster; remove the old metal beading, put in a new pvc bead and replaster up to the edge(s). If you can't do that, try an oil-based stain stop.

Answer 4

hack the plaster back to the existing brickwork to find the source painting over it only hides the survice

Answer 5

simple ..just paint that area with an OIL BASED PAINT ..gloss paint will do ..let it dry then emulsion over it ...it will form a barrier to the rust ...on plasterwork only use galvanised nails

Answer 6

go to lowes & buy rust it is in a brown bottle & will take rust out of ur clothes, tile, sinks , drains & is very inexpensive then treat with it monthly also u might want to get a few absorbent dehumidifers & cell any air openings

Answer 7

paint over it with a oil based paint allow to dry then use bathroom or kitchen paint.