Author Topic: Kem Aqua plus black  (Read 857 times)

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Offline alice

  • Posts: 112
Kem Aqua plus black
« on: February 23, 2020, 05:20 PM »
I was wondering if anyone would understand why I’m getting what looks like dirt like particles under the finish. I seem to have a good finish layed down once it drys throughly other than the particles . Use if a Apollo power 5 with 7700 gravity fed gun and 1.5 needle. I’m just spraying test panel but was wondering if the panel should be raised off surface instead of flat on it maybe air bouncing back on panel . Tried thinking with ww fluid and it did help a little. Any help would be appreciated.

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Offline tjbnwi

  • Posts: 6238
  • Cedar Tucky Indiana
Re: Kem Aqua plus black
« Reply #1 on: February 23, 2020, 05:50 PM »
Explain your prep process.

What material is this being shot on?

Surfacer or GenII primer? Is it tinted?

Sanding process between undercoater and top coat?

The island is KA+ tinted to match Black Magic.
Tom




Offline alice

  • Posts: 112
Re: Kem Aqua plus black
« Reply #2 on: February 23, 2020, 06:58 PM »
I’m using the surface not tinted sprayed on mdf panel 320 grit between coats

Offline tjbnwi

  • Posts: 6238
  • Cedar Tucky Indiana
Re: Kem Aqua plus black
« Reply #3 on: February 23, 2020, 08:20 PM »
In my first response, I forgot to mention, rebound, make sure your work surface is spotless.

On MDF, you’ll need 2 coats of Surfacer. The MDF gets ugly when you wet it. The sanding and second coat solves this.

I have SW tint some of our undercoaters with black pigment. Helps if the piece ever gets a nick in it.

Sand with 240 between coats. The ETS 125 is best for this, I use Granat Net with the interface pad.

Wipe clean with a damp rag. Allow to dry, apply second coat of Surfacer.

After second coat sand with 240, wipe with damp rag, allow to dry.

Apply top coat, allow it to dry, inspect. I do not sand between top coats. There are occasions where I will need to run a denibbing file over a flaw.

Apply final top coat.

Tom



« Last Edit: February 23, 2020, 08:22 PM by tjbnwi »

Offline tjbnwi

  • Posts: 6238
  • Cedar Tucky Indiana
Re: Kem Aqua plus black
« Reply #4 on: February 23, 2020, 08:54 PM »
Rather than edit---again.

Any items you're going to spray that has any type of raised edge or profile needs to be blown off with compressed air prior to damp wiping. The dust in the corners and seams is almost impossible to get out any other way.

WEAR SAFTEY GOOGLES AND YOUR RESPERATOR WHEN BLOWING THINGS OFF!!!!

Always spray edges first.

Tom


Offline alice

  • Posts: 112
Re: Kem Aqua plus black
« Reply #5 on: February 24, 2020, 03:29 AM »
Thanks Tom I will try that.