Undersealing repairs

[Andrew S]

Quick question. If you do a welding repair and it's all new metal, do you paint the metal with say black hammerite and then waxoyl over? I am helping a friend and the repair is in the arch / sill area and he has the paint and underseal.

Cheers
Andrew

[jakesmig]

I would clean off the weld and immediate area, prime it with a zinc rich primer (Halfords etc.) then paint / underseal as required. Try and seal the back face of the weld with the zinc primer if you can reach it.

John.

[Andrew S]

Cheers John

[Andrew S]

Such as this?

http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_858675_langId_-1_categoryId_165594

[Delayed Steve]

I did my underneath with 2 coats of brush on red lead then 2 or 3 coats of Smoothrite and then black waxoyl . Been done since 1995 and no sign of rust returning .

[Andrew S]

Thanks Steve

[jakesmig]

Sorry for delay, just back in. Yes, that zinc paint will do ok. Nothing wrong with the red lead either but perhaps harder to get.

John.

[DJT]

Sorry for delay, just back in. Yes, that zinc paint will do ok. Nothing wrong with the red lead either but perhaps harder to get.

John.

This stuff goes,on well and seems fit-for-purpose: http://www.screwfix.com/p/no-nonsens...questid=188538

[Bob Heritage]

This stuff goes,on well and seems fit-for-purpose: http://www.screwfix.com/p/no-nonsens...questid=188538

And it's in Carmine Red

[DJT]

And it's in Carmine Red

Nah! Nearer to Pimento Orange.....

[m9fdb]

I use the Screw fix red lead as well - its good stuff