Aquadag Paint - UK Vintage Radio Repair and Restoration Discussion Forum

garfy · 4th Jul 2005, 10:45 pm

Hello all,
Does anyone know where i can obtain any Aquadag Paint.
I used to get it from RS in the form of a aerosel but they have discontinued it now.
I only need a small amount to paint a Mazda CRM93 crt to put in a Bush TV22.
Many thanks,
Keith.

mickjjo · 4th Jul 2005, 11:29 pm

Rapid electronics do an aerosol of graphite coating which should do the job:-

http://www.rapidelectronics.co.uk/rk...0090&XPAGENO=1

Use of this stuff is discussed on this interesting site:-

http://freespace.virgin.net/andy.valve/techa.htm

Regards, Mick.

peter_scott · 5th Jul 2005, 12:04 pm

Not Aquadag, I know, but I came across it and thought it might be useful someday. http://cgi.ebay.co.uk/ws/eBayISAPI.d...sPageName=WDVW

Heatercathodeshort · 6th Jul 2005, 9:15 pm

Hi Keith,
The CRM93 will work very well in the BUSH TV22 without having to 'dag' the bowl of the tube. As you know the coating together with the internal final anode form an EHT smooting capacitor of around .001uf. There is sufficient capacity when the tube is mounted close to the chassis between the bulb and chassis to smooth the eht to a satisfactory degree. Even at full beam current only a tiny amount of line pulling can be observed and even then you would never see it unless pointed out. I am a little concerned about painting an old 50 year old tube with any form of drying paint. The glass is very thin on all MAZDA tubes and any undue strain should be avoided. I stuck the rearview mirror back on the windscreen of my TRANSIT with 'superglue' but was told later that when the warm weather came the screen would crack....You guessed it..All around the mirror mounting and a vertical crack.! Glass becomes brittle when old. It may become a serious problem as these vintage tubes age. JOHN

mikelect · 12th Jul 2005, 7:27 am

Hi guys after a quick Google found this hope it helps

Mike

http://www.technologysupplies.co.uk/...nt_342144.html

4th Jul 2005, 10:45 pm	#1
garfy Retired Dormant Member Join Date: Mar 2005 Location: Cornwall,UK Posts: 25	Aquadag Paint Hello all, Does anyone know where i can obtain any Aquadag Paint. I used to get it from RS in the form of a aerosel but they have discontinued it now. I only need a small amount to paint a Mazda CRM93 crt to put in a Bush TV22. Many thanks, Keith.

4th Jul 2005, 11:29 pm	#2
mickjjo Rest in Peace Join Date: Jul 2004 Location: Dartford, Kent, UK. Posts: 1,661	Re: Aquadag Paint Rapid electronics do an aerosol of graphite coating which should do the job:- http://www.rapidelectronics.co.uk/rk...0090&XPAGENO=1 Use of this stuff is discussed on this interesting site:- http://freespace.virgin.net/andy.valve/techa.htm Regards, Mick.

5th Jul 2005, 12:04 pm	#3
peter_scott Dekatron Join Date: May 2003 Location: Edinburgh, UK. Posts: 3,274	Re: Aquadag Paint Not Aquadag, I know, but I came across it and thought it might be useful someday. http://cgi.ebay.co.uk/ws/eBayISAPI.d...sPageName=WDVW

6th Jul 2005, 9:15 pm	#4
Heatercathodeshort Dekatron Join Date: Jun 2005 Location: Warnham, West Sussex. 10 miles south of DORKING. Posts: 9,147	Re: Aquadag Paint Hi Keith, The CRM93 will work very well in the BUSH TV22 without having to 'dag' the bowl of the tube. As you know the coating together with the internal final anode form an EHT smooting capacitor of around .001uf. There is sufficient capacity when the tube is mounted close to the chassis between the bulb and chassis to smooth the eht to a satisfactory degree. Even at full beam current only a tiny amount of line pulling can be observed and even then you would never see it unless pointed out. I am a little concerned about painting an old 50 year old tube with any form of drying paint. The glass is very thin on all MAZDA tubes and any undue strain should be avoided. I stuck the rearview mirror back on the windscreen of my TRANSIT with 'superglue' but was told later that when the warm weather came the screen would crack....You guessed it..All around the mirror mounting and a vertical crack.! Glass becomes brittle when old. It may become a serious problem as these vintage tubes age. JOHN

12th Jul 2005, 7:27 am	#5
mikelect Retired Dormant Member Join Date: Sep 2003 Location: Wrexham, North Wales, UK. Posts: 799	Re: Aquadag Paint Hi guys after a quick Google found this hope it helps Mike http://www.technologysupplies.co.uk/...nt_342144.html