I would suggest checking out Humiseal's web page. It lists all of the types
along with their characteristics.
www.humiseal.com

> -----Original Message-----
> From: Susan James [SMTP:[log in to unmask]]
> Sent: Thursday, June 24, 1999 5:13 PM
> To:   [log in to unmask]
> Subject:      [TN] Conformal Coating
>
> Dear Technet Experts,
>
> I am in need of info on conformal coatings.  We are contemplating coating
> a 4-layer board (signal,vcc,gnd,signal), .062 FR4 2 oz all layers, smobc.
> It's 100% thru-hole.  The board carries about 2.5 amps.  The board is
> placed in a commercial electric grill where contaminates such as grease
> and (ugh!) bugs are common.  Is there a web site of reliable tutorial info
> on types of coatings, advantages/disadvantages, etc.  I've found a couple
> of commercial sites, but need more objective info.  Any help is much
> appreciated.
>
> Sue James
> PCB Designer << File: Card for Susan James >>