You could do the masking yourself to reduce cost. Ed Popielarski Engineering Manager 970 NE 21st Ct. Oak Harbor, Wa. 98277 Ph: 360-675-1322 Fx: 206-624-0695 Cl: 360-544-2289 “It's one kind of victory to slay a beast, move a mountain, and cross a chasm, but it's another kind altogether to realize that the beast, the mountain, and the chasm were of your own design.” https://goo.gl/maps/mMjg43rXeFB2 -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Steven Creswick Sent: Monday, March 20, 2017 9:51 AM To: [log in to unmask] Subject: Re: [TN] WG: [TN] Screen On Insulation Bob, I've used SCS in Indianapolis, but they have many other branches. Is a batch process. Cost is in masking, if required. Typically, the labor intensive part. Call them and find out Steve https://scscoatings.com/ On Mon, Mar 20, 2017 at 12:46 PM, lduso - Diamond-MT.com < [log in to unmask]> wrote: > Bob > > Considering parylene is all done by batch process, pricing has a much > to do with that batch size, The largest effect on cost is the prep > time. Masking is labor time and that is costly. Parylene materials are > pricey but not outrageous. Let me know if you want more details. > > Lloyd Duso > Plant Manager > Diamond-MT > (814) 535-3505 > www.Diamond-mt.com > > On Mon, Mar 20, 2017 at 12:05 PM, Robert Kondner < > [log in to unmask]> > wrote: > > > Torsten, > > > > Do you know how thick a parylene coating is? My recollection is > > pretty thin. > > > > So I checked, very high dielectric strength, thickness typically > > under 1 mil but it can be built up further with longer processing time. > > > > Any idea wat coating with parylene cost for a small batch of boards? > > > > Thanks, > > Bob Kondner > > > > > > -----Original Message----- > > From: TechNet [mailto:[log in to unmask]] On Behalf Of Torsten Hagge > > Sent: Monday, March 20, 2017 9:17 AM > > To: [log in to unmask] > > Subject: [TN] WG: [TN] Screen On Insulation > > > > Hi, > > > > cheap solution could be a 1mil kapton tape with the mention risk of > > air gaps, fine and cost expensive solution parylene HT coating > > before > placing > > the ferrite cores... > > > > Take care > > Torsten > > > > > > > > Best Regards > > > > KRISTRONICS GmbH > > > > Dipl.Ing. (FH) Torsten Hagge > > team leader HW development > > Gewerbegrund 5-9 > > 24955 Harrislee > > Telefon +49 (0) 461 7741-624 > > Telefax +49 (0) 461 7741-642 > > [log in to unmask] > > www.kristronics.de > > Place of jurisdiction: Flensburg, commercial register: HRB 1433 FL > > CEO Dipl.-Ing. oec. Thormod Ohm VAD-Id DE 811182059 Bank account: > > Deutsche Bank AG Flensburg, account 4216610, bank number > > 21570011 > > IBAN: DE32 2157 0011 0421 6610 00, BIC: DEUT DE HH 215 P Please > > consider the environment before printing this e-mail > > > > > > > > -----Ursprüngliche Nachricht----- > > Von: TechNet [mailto:[log in to unmask]] Im Auftrag von Robert Kondner > > Gesendet: Freitag, 17. März 2017 21:11 > > An: [log in to unmask] > > Betreff: [TN] Screen On Insulation > > > > Hi, > > > > > > > > We have a PCB that turns out to require 2500VAC test for 60 seconds > > and > we > > had some flash over on pads to vias. We also have a planar ferrite > > transformer with primary windings on one side. > > > > > > > > Does anyone know of a screen on insulation material that can be used > > to increase flash over voltages? I would like to get a 2 or 3 mils > > of > material. > > My other option is to have a laser cut layer of isolation but that > > could leave air paths under the material. > > > > > > > > Any other ideas welcome. > > > > > > > > Thanks, > > > > Bob K. > > >