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| From: | "Peter Clifton (petercjclifton AT googlemail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com> |
| Date: | Thu, 16 Feb 2017 16:14:18 +0000 |
| Message-ID: | <CAJXU7q-7_CL9FhxOKPs0YvcfmG85K2OEv2zkCt6O9Hh9erChvQ@mail.gmail.com> |
| Subject: | Re: [geda-user] [Offtopic] Application of silicone based conformal coatings? |
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--001a11488a42dfc56c0548a8161d Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cool. When you say "dry", do you mean it has to be run through a dessicant pack? Refrigeration dehumidifier? Simple swirl water trap? Wondering if I'll get by with air direct from the hydrovane compressor (or the very noisy - deafening oilless SIP unit I have. Peter On 16 Feb 2017 16:05, "Marvin Dickens (mpdickens AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com> wrote: > A cheap airbrush with adjustable nozzle works in a tight - They key is > dry air and stable air flow. > This is how we do it with our prototypes... > > > Regards > > Marvin > > On Thu, Feb 16, 2017 at 4:38 AM, Peter Clifton > (petercjclifton AT googlemail DOT com) [via geda-user AT delorie DOT com] > <geda-user AT delorie DOT com> wrote: > > Hi all, > > > > I bought some Dow Corning silicone based conformal coating from a > supplier I > > use for solder paste syringe tips etc... this was repackaged into 50ml > > syringes by them. > > > > Turns out I've no idea how to apply it. I have an air dispensing setup > > (Fisnar), but the material is more viscous than I anticipated and does > not > > flow as much as I'd hoped when simply dispensed by syringe onto the > board. > > > > Brushing leaves ugly brush strokes. > > > > I think I may need some kind of spray setup. Does any one know how this > is > > done "properly", or have any experience DIYing such a setup? > > > > The place I bought the coating also sell spay dispensing valves > (moderately > > expensive), controllers for them and xyz dispensing gantry robots (spen= dy > > items). > > > > Possibly looking to rig something simple up to approximate =C2=A3expens= ive > setup. > > > > Any thoughts? > > > > Kind regards, > > > > Peter Clifton > > --001a11488a42dfc56c0548a8161d Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable <div dir=3D"auto">Cool.<div dir=3D"auto"><br></div><div dir=3D"auto">When y= ou say "dry", do you mean it has to be run through a dessicant pa= ck? Refrigeration dehumidifier? Simple swirl water trap?</div><div dir=3D"a= uto"><br></div><div dir=3D"auto">Wondering if I'll get by with air dire= ct from the hydrovane compressor (or the very noisy - deafening oilless SIP= unit I have.</div><div dir=3D"auto"><br></div><div dir=3D"auto">Peter</div= ></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On 16 Feb = 2017 16:05, "Marvin Dickens (<a href=3D"mailto:mpdickens AT gmail DOT com">mp= dickens AT gmail DOT com</a>) [via <a href=3D"mailto:geda-user AT delorie DOT com">geda-u= ser AT delorie DOT com</a>]" <<a href=3D"mailto:geda-user AT delorie DOT com">ged= a-user AT delorie DOT com</a>> wrote:<br type=3D"attribution"><blockquote class= =3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padd= ing-left:1ex">A cheap airbrush with adjustable nozzle works in a tight - Th= ey key is<br> dry air and stable air flow.<br> This is how we do it with our prototypes...<br> <br> <br> Regards<br> <br> Marvin<br> <br> On Thu, Feb 16, 2017 at 4:38 AM, Peter Clifton<br> (<a href=3D"mailto:petercjclifton AT googlemail DOT com">petercjclifton AT googlemail= .com</a><wbr>) [via <a href=3D"mailto:geda-user AT delorie DOT com">geda-user AT delo= rie.com</a>]<br> <<a href=3D"mailto:geda-user AT delorie DOT com">geda-user AT delorie DOT com</a>> = wrote:<br> >=C2=A0 Hi all,<br> ><br> > I bought some Dow Corning silicone based conformal coating from a supp= lier I<br> > use for solder paste syringe tips etc...=C2=A0 this was repackaged int= o 50ml<br> > syringes by them.<br> ><br> > Turns out I've no idea how to apply it. I have an air dispensing s= etup<br> > (Fisnar), but the material is more viscous than I anticipated and does= not<br> > flow as much as I'd hoped when simply dispensed by syringe onto th= e board.<br> ><br> > Brushing leaves ugly brush strokes.<br> ><br> > I think I may need some kind of spray setup. Does any one know how thi= s is<br> > done "properly", or have any experience DIYing such a setup?= <br> ><br> > The place I bought the coating also sell spay dispensing valves (moder= ately<br> > expensive), controllers for them and xyz dispensing gantry robots (spe= ndy<br> > items).<br> ><br> > Possibly looking to rig something simple up to approximate =C2=A3expen= sive setup.<br> ><br> > Any thoughts?<br> ><br> > Kind regards,<br> ><br> > Peter Clifton<br> <br> </blockquote></div></div> --001a11488a42dfc56c0548a8161d--
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