Post Weld Treatment

[adritch]

I have just finished welding in a new sill and re-welding the new sill that the previous owner replaced. He seems to have painted the weld with a rubbery coating. Can anyone advise what this is? It seems a good idea as it gets right into any crannies and completely covers the weld so should stop any water ingress.

If it is a good idea though, should that be painted straight onto the weld, or should I go with something like Hammerite first, then this rubbery stuff?

Thanks,
Adam.

[bigginger]

That'll be seam sealer - http://www.frost.co.uk sell it if you can't find it locally. The order to put the finish on is primer (aluminium?)/seamsealer/paint.

[jonathon]

The best prep for a long lasting weld is, clean up the weld with either a wire wheel on a drill or small local shot blaster. Spray the area with galv spray or the like which has a high zinc content, primer over this then seam seal prime again then paint in the required body colour.