Lee,
We use the green polyester tape dots and squares from Shercon and they 
work well.  You might also consider Seal and Peel from Interflux in Texas. 
 This is a hot melt masking agent, comes up easy, leaves no residues.  We 
use it for Parylene masking.  Pretty good stuff.

Doug Pauls



From:   Lee Hitchens <[log in to unmask]>
To:     <[log in to unmask]>
Date:   05/16/2013 02:08 AM
Subject:        [TN] Masking of conformal coating
Sent by:        TechNet <[log in to unmask]>



I am looking for help on what people think is a good masking tape / dot 
for conformal coating processing. Right now our services around the 
world are really struggling to find a suitable tape that does everything 
they want. They did have a great tape from a well known company but 
production problems has meant it has been withdrawn. The wish list for 
our operators is

1. Sticks well enough not to lift with too much time (avoids bleed under 
the tape)
2. Doesn't stick too much so the component is ripped off with the masking
3. Doesn't leave a residue when removed (we wont apply heat to the tape 
so can ignore that)
4. Dont need to buy 5 years stock of each different size due to crazy 
min order needs
5. Prefer not to have a backing tape as a real pain
6. I would like to say ESD friendly but all the tapes we have tried that 
are ESD are awful. But we will see?
7. Plastic (polyamide or something) tape and not paper. Paper lies too 
thick on the surface and causes de-masking issues if coating is applied 
to the correct thickness.

We can compromise since I know this is what will happen but what do 
operators use out there and find a good solution?

-- 
Best Regards

Lee Hitchens
Technical Director
SCH Technologies is a Division of SCH Services Limited
www.conformalcoating.co.uk


The opinions expressed in this e-mail are strictly those of the sender and 
not of SCH Services Limited. This communication may contain information 
which is confidential and may also be privileged. It is for the exclusive 
use of the intended recipient(s). Unauthorised use, copying or disclosure 
of any of it may be unlawful. If you are not the intended recipient(s) 
please note that any distribution, copying or use of this communication or 
the information in it is strictly prohibited. If you have received this 
communication in error please notify us by e-mail or by telephone (+44 
(0)1226 249019) and then delete the e-mail and any copies of it. Virus 
Warning - Although steps have been taken to ensure that all email and 
attachments are virus-free, we cannot guarantee nor be held liable.
 




______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________




______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________