Doug,
I am surprised that works with 1B73 since it has silicone in it.
Craig Sullivan
Manufacturing Engineer
MPL Incorporated
P: 607.266.0480
F: 607.266.0482
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From: [log in to unmask] [mailto:[log in to unmask]]
Sent: Monday, May 16, 2011 10:04 AM
To: TechNet E-Mail Forum; Craig Sullivan
Subject: Re: [TN] Conformal Coat tape
Craig,
We have been using the products from Shercon with good results. The green polyester tape is what we have been using and it seems to work well with both Humiseal 1B31 and Humiseal 1H20AR1. It has a max temp of 400F, but that is well above most coating cure steps I know of.
http://www.shercon.com/storefront/PC21Greenployestertape.aspx
They also sell this green tape in rolls of squares and round dots of varying sizes. In a couple years of use, we have had no problems with residues or left behind adhesive.
Doug Pauls
Rockwell Collins
Craig Sullivan <[log in to unmask]<mailto:[log in to unmask]>>
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05/16/2011 08:34 AM
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Subject
[TN] Conformal Coat tape
Well, I suppose this is a repeat from a few years ago when Humiseal stopped selling their conformal coat tape and left everyone searching for alternatives.
Recap: Humiseal HT-500 tape was manufactured exclusively for Humiseal by St. Gobain. The St. Gobain part number is M797. St. Gobain had numerous quality issues and as such Humiseal ceased the line. St. Gobain continues to manufacture the tape. We had continued to use the St. Gobain part with minor quality problems here and there. We decided to live with the issues because the tape works so well with our Acrylic coating.
Fast forward to today: St. Gobain decided to put the tape on a liner to correct various issues they and other customers had. Problem is we now see excessive residue left on the boards as well as the rolls falling apart if we're not careful with handling. They've also scaled back production and as such the lead times have quadrupled.
So, my question is can anyone share what they use with their acrylic coatings? We use a boat load of this stuff so I need to find a seamless replacement.
Thank you,
Craig Sullivan
Manufacturing Engineer
MPL Incorporated
P: 607.266.0480
F: 607.266.0482
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