to control the dft first you have to know the paint type, if it is a high build or not and most safe is first paint on the test panel and from that you can calculate no. of passes required to get the correct dft
-- Haseeb
KSA
On Wed, Oct 27, 2010 at 10:33 AM, Sundaram Sundaram <nss2410@gmail.com> wrote:
Thanku for your reply Mr.Gole.The primer DFT- 75microns,midcoat coat- 75 microns,final coat- 75 microns.overall 225 microns.Most of the times the total DFT is exceeding 225microns and how to control this.Can you give some more clear picture,pls
On Wed, Oct 27, 2010 at 11:15 AM, BHARAT GOLE <bharatgole@hotmail.com> wrote:
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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