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November 2007

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Subject:
From:
Graham Naisbitt <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Graham Naisbitt <[log in to unmask]>
Date:
Thu, 1 Nov 2007 17:54:10 +0000
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Hi Graham et al

You will forgive me that last one, but it really is that simple - you  
can't.

That product contains an oil, and it takes time to fully cure.  
However, I could say - It depends (Cha Ching!) if you were to ask the  
question this way:

We need the coating to withstand the following conditions as soon as  
possible, I might be able to say yes. So, what are the conditions it  
would need to meet?

I have considered for a long time, that we need to use the following  
3 terms regarding conformal coatings:

Time to tack-free
Time to dry
Time to cure

They are all different.

Kindest regards
Graham Naisbitt

[log in to unmask]

www.gen3systems.com

Phone: +44 (0)12 5252 1500
Mobile: +44 (0) 79 6858 2121


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Gen3 Systems Limited Unit B2, Armstrong Mall Southwood Business Park Farnborough Hampshire GU14 0NR - UK ENGINEERING RELIABILITY IN ELECTRONICS Registered Number: 4639449 (England & Wales). Registered Office as above. DISCLAIMER : This message is intended only for the use of the individual or entity to which it is addressed and may contain information which is privileged, confidential, proprietary, or exempt from disclosure under applicable law. If you are not the intended recipient or the person responsible for delivering the message to the intended recipient, you are strictly prohibited from disclosing, distributing, copying, or in any way using this message. If you have received this communication in error, please notify the sender and destroy and delete any copies you may have received. Any views or opinions presented in this email are solely those of the author and might not represent those of Gen3 Systems Limited. Although Gen3 Systems Limited has taken reasonable precautions to ensure no viruses present in this email, Gen3 Systems Limited can not accept the responsibility for any loss or damage arising from the use of this email or attachments. On 1 Nov 2007, at 17:00, Graham Collins wrote: > Hi TechNet > Having a production time crunch, the usual question is being asked > of me > - "Do we have to cure the coating for THAT long????" > > So - any coating gurus out there (Graham N, are you there?): > - Humiseal 1A33, per the spec sheet, minimum cure is 20 hours at 190F > (87.8C). > Is it possible to cure at a higher temperature for less time, without > compromising the performance of the material? > > Thanks! > - Graham Collins > > --------------------------------------------------- > Technet Mail List provided as a service by IPC using LISTSERV 15.0 > To unsubscribe, send a message to [log in to unmask] with following > text in > the BODY (NOT the subject field): SIGNOFF Technet > To temporarily halt or (re-start) delivery of Technet send e-mail > to [log in to unmask]: SET Technet NOMAIL or (MAIL) > To receive ONE mailing per day of all the posts: send e-mail to > [log in to unmask]: SET Technet Digest > Search the archives of previous posts at: http://listserv.ipc.org/ > archives > Please visit IPC web site http://www.ipc.org/contentpage.asp? > Pageid=4.3.16 for additional information, or contact Keach Sasamori > at [log in to unmask] or 847-615-7100 ext.2815 > ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------

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