finishing.com logo
  HOMEFAQsBOOKSHelpWantedAdvertiseContactFORUM Letter 45236

The finishing.com Hotline -- Serious Education ... plus the most fun you can have in metal finishing

Powder coat second coat

(2007)

Is there any means of applying a second coat of powder over an already cured coat of the same color? Also, what is the basic process for applying a clear coat?

Dan Laverty
metal fabricator and finisher - Medford, Maine


(2007)

It's my experience that you can do ONE overcoat on top of another, provided the first coat is sound.

If you know that you are going to apply two coats, then only partially cure the first coat (it will look glossy), then fully cure with the overcoat. This gives better intercoat adhesion.

If you unexpectedly have to overcoat, then a light sanding of the first coat to get some "key" for adhesion.

Clear topcoats can be done this way.

Geoff Crowley Geoff Crowley
galvanizing &
   powder coating shop
Glasgow, Scotland


(2007)

Please also ensure that the guns are set to apply re-coats or reduce the kV manually.

Kaleem Muhammad
- Ontario, Canada


December 2, 2009

when you say partially cured, do you mean to apply the second coat while the first coat it still hot? or can it be done when it is cooled?

james green
- las vegas, nevada

ADD a Q or A to THIS thread START a NEW THREADView This Week's HOT TOPICS

Disclaimer: It is not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous; some names may be fictitious and some recommendations may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & DevicesUsed & Surplus


©1995-2015 finishing.com     -    Privacy    -    Search