Hi Doug

Just requested the samples for the UV cure latex. We use UV all the time 
with coating so it would make sense to cure as well.

FYI we are in the process of finishing a big project right now on a 
conformal coating handbook but in the form of an ebook. What I wanted to 
first say this is not a replacement or in competition to IPC. Its a how 
to guide on practical processing following the rules of standards like 
IPC etc.  Its going to be full of videos and photos on techniques we use 
in coating as we wanted to bridge the gap in knowledge that companies 
have. We are also going tackle all the usual issues on cleaning, 
reliability etc but from a view point of sign posting people and 
ensuring they are educated on what they need to do to get it right.

We obviously are doing this as a commercial exercise but we are keeping 
the ebook as neutral as possible. We intend to release two versions. One 
is free but that version will have adverts in it. The other version will 
be $100 approx but be advert free. You can then choose your poison.

What I wanted to ask is whether you could BRIEFLY review the ebook when 
its draft version is completed to see if we are meeting the goals we are 
aiming at? As the leading expert (suck up hard!) in coatings your input 
would be greatly appreciated since I really want to give people a 
helping guide on actual processing.

Let me know your thoughts?


Best Regards

Lee Hitchens
Technical Director
SCH Technologies is a Division of SCH Services Limited
Mob: +44 (0) 7862 25 33 21 www.conformalcoating.co.uk

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On 17/05/2013 12:44, Douglas Pauls wrote:
> You are welcome Lee.  You might also consider UV curable masking
> materials.  I am evaluating one from Dymax right now.  Does not seem to
> leave harmful residues, but not sure how well it works in production yet.
>
> Doug Pauls
>
>
>
> From:   Lee Hitchens <[log in to unmask]>
> To:     TechNet E-Mail Forum <[log in to unmask]>,
> [log in to unmask]
> Date:   05/17/2013 03:09 AM
> Subject:        Re: [TN] Masking of conformal coating
>
>
>
> Thanks Doug
>
> We will check this out. We are going to trial a few other things and see
> what is the best result.
>
> Best Regards
>
> Lee Hitchens
> Technical Director
> SCH Technologies is a Division of SCH Services Limited
> Mob: +44 (0) 7862 25 33 21 www.conformalcoating.co.uk
>
> TECHNICAL SUPPORT SERVICE
>   
> SCH Services Ltd offers a Technical Support Helpline to help address all
> issues relating to reliability. This includes contamination testing,
> cleanliness and cleaning issues, plus any coating related questions.
> Please contact us via email or telephone:
>   
> [log in to unmask]   +44 (0)1226 249019 (office hours & answerphone) +44
> (0)7862 253321 (out-of-hours emergency)
>
> 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.
>   
> Company Registration: 04043334
> Registered office: SCH Services Limited Newburgh Building McLintock Way
> Barnsley South Yorkshire S70 6BF
>
>
> On 16/05/2013 15:32, Douglas Pauls wrote:
>> 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?
>>
>
>
>
>
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