The thing is that this line has been working daily for years without
trouble, nothing changed, same procedure. I'll check the tip about
thinner improperly handled, or nozzle cleaning..
Inge

-----Ursprungligt meddelande-----
Från: Frederick Miller [mailto:[log in to unmask]] 
Skickat: den 27 oktober 2005 17:16
Till: TechNet E-Mail Forum; Ingemar Hernefjord
Ämne: RE: [TN] Urgent! Acrylic coating

You also need to check that the temperature of the coating and ambiant
temperature are above the minimum application temperature for this
material. The material must also be kept warm during curing.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Ingemar Hernefjord
Sent: Thursday, October 27, 2005 10:32 AM
To: [log in to unmask]
Subject: [TN] Urgent! Acrylic coating


Hi all,
I got a call from our production. They stopped the board coating. All
boards get white and superthin veils, patterned like fractals or roses.
I'm at home because of illness, so I can't participate in their work
with the problem.
I asked them for how long they bake the board before spraying, and they
told me that  no baking is made at all. Does sound wrong to me. My first
theory is humidity in some form. Humiseal, don't have the article number
just now.
Anyone who has a tip?
I'll get pics sooner, maybe I can resize them for Steve's gallery.
Thanks in advance
Ingemar Hernefjord
Ericsson Microwave Systems

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