Electronics Forum: 1a33 (Page 1 of 5)

Humiseal 1A33 Gel with Nordson SC400 Valve

Electronics Forum | Mon Nov 25 03:14:57 EST 2013 | mg2013

Hello @ the specialists, we have a Nordson Asymtek SL940 to coat our pcb's. We can use the valves SC100 and SC400 for conformal coating applications. We use the Humiseal 1A33 as the conformal coating. Now we would like to use the standard 1A33 in th

Humiseal 1A33

Electronics Forum | Tue Feb 24 06:44:50 EST 2015 | bugarin

Hello , We are using Kester 959T flux and we wish to purchase Aim Ws 716 flux, due to higher activity. We also use humiseal 1a33 for conformal coating. Is anyone using Aim flux and humiseal 1A33, are they compatible ? Thank you for info

Urethane Coating (1A33)

Electronics Forum | Wed Aug 27 17:12:34 EDT 2008 | mikesewell

Silicone contamination could appear as fisheyes or dark spots under UV light. 1A33 can be heat cured but is a single component oxygen cure coating - it needs a source of oxygen to cure. An unvented oven may slow or limit the cure. Check out the TDS

BGA failure after coating

Electronics Forum | Thu Oct 01 07:03:55 EDT 2009 | davef

We doubt that Humiseal 1A33 is causing opens in your assemblies. We'd guess the opens occur earlier in the process, but are not hard failures. So, you pass your tests. When applied, the conformal coat flows into the gap in the ball crack and insulate

Humiseal vendors

Electronics Forum | Tue Jul 05 15:26:10 EDT 2005 | jimih280

Where is the best place to buy Humiseal 1A33 in gallons?

Urethane Coating (1A33)

Electronics Forum | Wed Aug 27 07:48:11 EDT 2008 | patrickbruneel

Contact Graham Naisbitt he is an expert in this field. Graham.Naisbitt@concoat.co.uk

Urethane Coating (1A33)

Electronics Forum | Wed Aug 27 15:51:45 EDT 2008 | grics

Thanks Patrick. I will probably contact him tommorrow.

Humiseal 1A33 Gel with Nordson SC400 Valve

Electronics Forum | Wed Dec 04 14:19:30 EST 2013 | triciawmcgough

Nordson ASYMTEK engineers are familiar with the regular 1A33 but the gel is a relatively new product. Its purpose is to prevent the exact problem you are describing. Can you provide us a phone number so we can discuss in person? You can send the phon

Urethane Conformal Coatings

Electronics Forum | Fri Aug 07 16:45:35 EDT 2020 | duso02

All URs require a long time to fully cure. And actually, most users do not reach full-cure before using the board. Even Humiseal 1A33 will be dry enough to handle after a very short time.

Urethane Coating (1A33)

Electronics Forum | Tue Aug 26 16:18:13 EDT 2008 | grics

hey, thanks for the advice. We have replaced all the lines and have had the valves cleaned & rebuilt, so we are hoping that will be sufficient. What does the dewetting of the urethane coating look like???

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