Homebrew_PCBs

This Youtube video is labeled
"professional-looking stopping agent (solder resist layer)"

http://www.youtube.com/watch?v=VNYIVZgbi9M

I just watched Michael's Youtube video of solder resist layer, and
thought I'd ask if anybody here had tried it. The result looks
quite good in the video.

Green film has glossy side & matte side (1/2 way through video)

Does anybody have experience using this green film?

I don't understand why the green film is transparent ONLY over the undrilled holes, as shown in the video at around 15:30. I must
have missed something.

Does anybody know where I can get this film in the USA?

Does anybody know if this stopping agent layer will work with the toner transfer etching method, as opposed to the UV-photo-etching method shown in the video ?

Am a little disappointed it doesn't put component silhouettes in the green film, but I guess a white film would be better for that anyway.


Allan

On 01/01/2013 10:10 PM, alan00463 wrote:

> This Youtube video is labeled
> "professional-looking stopping agent (solder resist layer)"
>
> http://www.youtube.com/watch?v=VNYIVZgbi9M
>
> I just watched Michael's Youtube video of solder resist layer, and
> thought I'd ask if anybody here had tried it. The result looks
> quite good in the video.
>
> Green film has glossy side & matte side (1/2 way through video)
>
> Does anybody have experience using this green film?
>
> I don't understand why the green film is transparent ONLY over the undrilled holes, as shown in the video at around 15:30. I must
> have missed something.
>
> Does anybody know where I can get this film in the USA?
>
> Does anybody know if this stopping agent layer will work with the toner transfer etching method, as opposed to the UV-photo-etching method shown in the video ?
>
> Am a little disappointed it doesn't put component silhouettes in the green film, but I guess a white film would be better for that anyway.
>
>
> Allan
>

Wow, could not watch the video due to the awlfull chewing sound.

And as for the transparency at the hles, it is obvious that there is no
film over the pads/holes :-)

--
Best Regards,
Q Systems
Zoran A. Šćepanović
zastos@...
Skype: zoran.a.scepanovic
http://zastos.com
+381 63 609-993

-..-
Beam me up scotty,
there is little intelligent life on this planet!!

There's someone selling some here:
http://www.ebay.com/itm/Solder-Mask-Resist-Green-Dynamask-5-sheets-30-x-20-CM-Incl-50-gram-developer-/271109281266


You can put solder-mask on any PCB regardless of how you etched it etc.


No component outlines of course, that is for the silkscreen layer, totally different to solder-mask layer.

--- In Homebrew_PCBs@yahoogroups.com, "alan00463" <alan00463@...> wrote:
>
>
> Does anybody know where I can get this film in the USA?
>
> Does anybody know if this stopping agent layer will work with the toner transfer etching method, as opposed to the UV-photo-etching method shown in the video ?
>
> Am a little disappointed it doesn't put component silhouettes in the green film, but I guess a white film would be better for that anyway.
>
>
> Allan
>

There is obviously a lot that is not shown. How can a laminate resist cover both etched areas and the not etched areas?

It's a hoax -- with a lot of thumb sucking and rap music in the background.

John

----- Original Message -----
From: tda7000
To: Homebrew_PCBs@yahoogroups.com
Sent: Tuesday, January 01, 2013 5:36 PM
Subject: [Homebrew_PCBs] Re: Michael's "Green Film" provokes thought



There's someone selling some here:
http://www.ebay.com/itm/Solder-Mask-Resist-Green-Dynamask-5-sheets-30-x-20-CM-Incl-50-gram-developer-/271109281266

You can put solder-mask on any PCB regardless of how you etched it etc.

No component outlines of course, that is for the silkscreen layer, totally different to solder-mask layer.

--- In Homebrew_PCBs@yahoogroups.com, "alan00463" <alan00463@...> wrote:
>
>
> Does anybody know where I can get this film in the USA?
>
> Does anybody know if this stopping agent layer will work with the toner transfer etching method, as opposed to the UV-photo-etching method shown in the video ?
>
> Am a little disappointed it doesn't put component silhouettes in the green film, but I guess a white film would be better for that anyway.
>
>
> Allan
>





[Non-text portions of this message have been removed]

On 01/01/2013 11:46 PM, John Anhalt wrote:

> There is obviously a lot that is not shown. How can a laminate resist cover both etched areas and the not etched areas?
>
> It's a hoax -- with a lot of thumb sucking and rap music in the background.
>
> John
>

Hi John,
don't jump to the conclusions too early.
Soldermask is as easy as 1-2-3-4:
Laminate-Expose-Develop-Cure.

I actually watched the video to the end (after some "liquidish sedative"
- beer), and the cow-dude explained it quite accurate.

--
Best Regards,
Q Systems
Zoran A. Šćepanović
zastos@...
Skype: zoran.a.scepanovic
http://zastos.com
+381 63 609-993

-..-
90% of all statistics are made up.

I realize a solder mask can do that. But didn't see the your tube producer mention that the board was etched first, then was treated with the solder mask. I may have missed that.

If I did, I apologize.

Assuming it is two steps, aligning the etch mask and the solder mask could be a bit challenging, but not impossible with proper alignment marks.

John

----- Original Message -----
From: "Zoran A. Šćepanović"
To: Homebrew_PCBs@yahoogroups.com
Sent: Tuesday, January 01, 2013 5:55 PM
Subject: Re: [Homebrew_PCBs] Re: Michael's "Green Film" provokes thought



On 01/01/2013 11:46 PM, John Anhalt wrote:
> There is obviously a lot that is not shown. How can a laminate resist cover both etched areas and the not etched areas?
>
> It's a hoax -- with a lot of thumb sucking and rap music in the background.
>
> John
>

Hi John,
don't jump to the conclusions too early.
Soldermask is as easy as 1-2-3-4:
Laminate-Expose-Develop-Cure.

I actually watched the video to the end (after some "liquidish sedative"
- beer), and the cow-dude explained it quite accurate.

--
Best Regards,
Q Systems
Zoran A. Šćepanović
zastos@...
Skype: zoran.a.scepanovic
http://zastos.com
+381 63 609-993

-..-
90% of all statistics are made up.




[Non-text portions of this message have been removed]

>You can put solder-mask on any PCB regardless of how you etched it etc.

FWIW....
I've been using a FAUX solder mask. :D)

After etching the board and cleaning it thoroughly,
I spray it with Testor's all purpose spray enamel,
#1601 "Candy Emerald Green". It drys in a hurry, but I let mine
sit overnight . The "trick" is to not spray it on too heavy. Just a
couple of light, even coats a few minutes apart will do it. A cardboard
box placed over the board will help keep dust off the fresh coating.

The traces are still easy to see and drill. It's transparent and melts
away wherever you want to solder.

As with any soldering or painting activity, use adequate ventilation.

If you want to try it, I understand that the color is being discontinued,
but it's still available on Amazon and at least one auction site. I've
never been able to find it locally.

Charlie

[Non-text portions of this message have been removed]

The video may not be great but the information is all there if you listen. I understand some people may not want to, but I had no big issues with it.

Certainly not a hoax anyway, but yes, aligning the masks will be the hardest part I think.

--- In Homebrew_PCBs@yahoogroups.com, "John Anhalt" <janhalt@...> wrote:
>
> I realize a solder mask can do that. But didn't see the your tube producer mention that the board was etched first, then was treated with the solder mask. I may have missed that.
>
> If I did, I apologize.
>
> Assuming it is two steps, aligning the etch mask and the solder mask could be a bit challenging, but not impossible with proper alignment marks.
>
> John
>
> ----- Original Message -----
> From: "Zoran A. Šćepanović"
> To: Homebrew_PCBs@yahoogroups.com
> Sent: Tuesday, January 01, 2013 5:55 PM
> Subject: Re: [Homebrew_PCBs] Re: Michael's "Green Film" provokes thought
>
>
>
> On 01/01/2013 11:46 PM, John Anhalt wrote:
> > There is obviously a lot that is not shown. How can a laminate resist cover both etched areas and the not etched areas?
> >
> > It's a hoax -- with a lot of thumb sucking and rap music in the background.
> >
> > John
> >
>
> Hi John,
> don't jump to the conclusions too early.
> Soldermask is as easy as 1-2-3-4:
> Laminate-Expose-Develop-Cure.
>
> I actually watched the video to the end (after some "liquidish sedative"
> - beer), and the cow-dude explained it quite accurate.
>
> --
> Best Regards,
> Q Systems
> Zoran A. Šćepanović
> zastos@...
> Skype: zoran.a.scepanovic
> http://zastos.com
> +381 63 609-993
>
> -..-
> 90% of all statistics are made up.
>
>
>
>
> [Non-text portions of this message have been removed]
>

I bought some some solder mask from an eBay seller in England several months ago and it works just fine. It takes a little practice to laminate it with out wrinkles. I pretty much follow the instructions in the link provided by John Anhalt. The developer is sodium carbonate (washing soda). The tricky part is the exposure. If you overexpose, you can't remove the pad areas. I use a 25W UV Damar CFL in a parabolic shop fixture and expose for about 1 1/2 min at a distance of about 5".

>
> Does anybody have experience using this green film?
>

Good clear explanation of the whole process here:

http://cms.diodenring.de/de/electronic/mikrocontroller/95-pcb-diy

Paul

On 02/01/2013 01:27, tda7000 wrote:
>
> The video may not be great but the information is all there if you
> listen. I understand some people may not want to, but I had no big
> issues with it.
>
> Certainly not a hoax anyway, but yes, aligning the masks will be the
> hardest part I think.
>
> --- In Homebrew_PCBs@yahoogroups.com
> <mailto:Homebrew_PCBs%40yahoogroups.com>, "John Anhalt" <janhalt@...>
> wrote:
> >
> > I realize a solder mask can do that. But didn't see the your tube
> producer mention that the board was etched first, then was treated
> with the solder mask. I may have missed that.
> >
> > If I did, I apologize.
> >
> > Assuming it is two steps, aligning the etch mask and the solder mask
> could be a bit challenging, but not impossible with proper alignment
> marks.
> >
> > John
> >
> > ----- Original Message -----
> > From: "Zoran A. Å Ä++epanoviÄ++"
> > To: Homebrew_PCBs@yahoogroups.com
> <mailto:Homebrew_PCBs%40yahoogroups.com>
> > Sent: Tuesday, January 01, 2013 5:55 PM
> > Subject: Re: [Homebrew_PCBs] Re: Michael's "Green Film" provokes thought
> >
> >
> >
> > On 01/01/2013 11:46 PM, John Anhalt wrote:
> > > There is obviously a lot that is not shown. How can a laminate
> resist cover both etched areas and the not etched areas?
> > >
> > > It's a hoax -- with a lot of thumb sucking and rap music in the
> background.
> > >
> > > John
> > >
> >
> > Hi John,
> > don't jump to the conclusions too early.
> > Soldermask is as easy as 1-2-3-4:
> > Laminate-Expose-Develop-Cure.
> >
> > I actually watched the video to the end (after some "liquidish sedative"
> > - beer), and the cow-dude explained it quite accurate.
> >
> > --
> > Best Regards,
> > Q Systems
> > Zoran A. Å Ä++epanoviÄ++
> > zastos@...
> > Skype: zoran.a.scepanovic
> > http://zastos.com
> > +381 63 609-993
> >
> > -..-
> > 90% of all statistics are made up.
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
>
>
> No virus found in this message.
> Checked by AVG - www.avg.com <http://www.avg.com>
> Version: 2013.0.2805 / Virus Database: 2637/6001 - Release Date: 01/01/13
>



[Non-text portions of this message have been removed]