Mud-club

Chat & Social => The Bar - General Chat => Topic started by: lambert on July 16, 2008, 11:50:17

Title: What's that stuff called
Post by: lambert on July 16, 2008, 11:50:17

That you paint galvanised with to make color paint stick properly, acid stuff turns silver galv black? For painting tilt sticks black.

Title: Re: What's that stuff called
Post by: 666 on July 16, 2008, 12:07:48

We use something called "Tee wash" i believe, applied with a rag and wiped over newly galvanised steel prior to painting.

Cheers

Mark

Title: Re: What's that stuff called
Post by: strapping young lad on July 16, 2008, 12:32:04

red oxide?

Title: Re: What's that stuff called
Post by: 666 on July 16, 2008, 12:45:49

Quote from: strapping young lad on July 16, 2008, 12:32:04

red oxide?

No, not even red oxide or zinc phosphate primers will cover new galv properly!

Think if its a paint you are after it may be called an "etch primer" but not certain. As i said where i work they use a solution to wash down the galv prior to painting ;)

Cheers

Mark

Title: Re: What's that stuff called
Post by: lambert on July 16, 2008, 14:31:54

Yeah it's the wash stuff, blue to clear watery consistency.

Title: Re: What's that stuff called
Post by: 666 on July 16, 2008, 14:37:34

Quote from: Bigbluemaverick on July 16, 2008, 14:31:54

Yeah it's the wash stuff, blue to clear watery consistency.

That sounds about right, dont know exactly how much you are supposed to use as thats down to the guys in the workshop!

Cheers

Mark

Title: Re: What's that stuff called
Post by: hairyasswelder on July 17, 2008, 19:10:50

T wash also known as mordant soloution applied with rags an turns sticky black. then etch primer, primer, top coat  ;)

Title: Re: What's that stuff called
Post by: lee celtic on July 17, 2008, 22:31:53

T wash is the name we use it on panels for the big water tanks you see on industial estates ..

you can wipe it on with a rag if the galv is smooth but if it's rough it's best to use a pump sprayer on fine mist (use mask ) because a rag will leave fibers on the rough stuff...

and wear gloves as if can be absorbed through the skin.