RE: [MW:7859] Surface preparation and coating

If surface profile is more than acceptable limit then it may cause for rust rashing i.e high peaks may expose after paint curing/contraction will be rusted.
Actaully it depend upon the so many factors such as whole paint syetem and DFT etc

Bharat B. Gole

 

 

> Date: Tue, 26 Oct 2010 22:58:41 -0700
> Subject: [MW:7857] Surface preparation and coating
> From: nss2410@gmail.com
> To: materials-welding@googlegroups.com
>
> Dear friends,
> Blasting Grade required - SA2.5
> Surface profile required - 40 - 70microns
>
> If the surface profile crossing the required limit 70-
> 80microns then what will the effect on painting and what is the
> reference code.Please guideme
>
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