cleaning & painting sides of transformer

jboehle · 2910

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Offline jboehle

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on: March 20, 2014, 05:20:59 PM
I got my Crack kit today and the transformer has some goop on the sides that is not so visually attractive.  What can I use to safely clean it off?

Also, is it safe to paint the sides of the transformer?  I would like them to be a glossy black to go with how I am coloring the rest of the amp.


Offline galyons

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Reply #1 on: March 20, 2014, 05:26:10 PM
Yes, you can gently sand down the "goop".  Then you can paint the stacks, but mask off the  bell top and terminals bottom.  I use use Rustoleum  Appliance epoxy paint. Works well.

Cheers,
Geary

VPI TNT IV/JMW 3D 12+Benz LP-S>  Eros + Auralic Aries + ANK Dac 4.1 >Eros TH+ Otari MX5050 IIIB2 > BeePre >Paramount 300B 7N7 > EV Sentry IV-A

Thorens TD124/Ortofon RMG-212/SPU >Seduction > Smash^Up> Paramour 45 MQ >K12's

Offline Paul Birkeland

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Reply #2 on: March 20, 2014, 05:29:10 PM
The goop is what holds the transformer together, so don't take too much off! 


Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline jboehle

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Reply #3 on: March 20, 2014, 07:56:05 PM
Quote from: Caucasian Blackplate on March 20, 2014, 05:29:10 PM
The goop is what holds the transformer together, so don't take too much off!

That's why I asked, I didn't want to use some solvent to clean it that would dissolve something important!  Sounds like sanding just the extra goop off the outside should be okay then?  I will tape some plastic over the top & bottom before doing it just so none of it gets inside the transformer.


Offline galyons

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Reply #4 on: March 20, 2014, 08:02:29 PM
No solvent.  Just a light sanding to smooth out the varnish.  I just finished a  Crack. The varnish had major runs & globs.  I used a sanding block to get it mostly even without cutting through to the stacks.

Cheers,
Geary

VPI TNT IV/JMW 3D 12+Benz LP-S>  Eros + Auralic Aries + ANK Dac 4.1 >Eros TH+ Otari MX5050 IIIB2 > BeePre >Paramount 300B 7N7 > EV Sentry IV-A

Thorens TD124/Ortofon RMG-212/SPU >Seduction > Smash^Up> Paramour 45 MQ >K12's

Offline mcandmar

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Reply #5 on: March 20, 2014, 08:29:31 PM
I did mine with a sheet of sandpaper on a pane of glass, the nice flat surface makes it easier to knock off the globs of glue without digging into the laminations. Looks flawless now.

M.McCandless

Offline Guy 13

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Reply #6 on: March 21, 2014, 12:50:04 AM
Quote from: galyons on March 20, 2014, 08:02:29 PM
No solvent.  Just a light sanding to smooth out the varnish.  I just finished a  Crack. The varnish had major runs & globs.  I used a sanding block to get it mostly even without cutting through to the stacks.

Cheers,
Geary
Hi Geary.
Are you referring to/talking about MY Crack ?

Guy 13

Rega P3/Exact MM / Rega Apollo / Decware SE84C+ / Bottlehead Crack / Sennheiser HD650 / Grace Mondo RIT/ Omega 7F OB dipole / Double Eminence 12" Acoustinator OB dipole.

Offline jboehle

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Reply #7 on: March 21, 2014, 09:55:13 AM
Thanks all, I lightly sanded until smooth to touch, wiped it down with a barely damp rag, then let it dry.  Just finished painting it and now it's drying.  I can still barely see some of the remnants of the goop but hopefully after it dries they will not be noticeable.


Offline galyons

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Reply #8 on: March 21, 2014, 10:12:31 AM
Quote from: Guy 13 on March 21, 2014, 12:50:04 AM
Quote from: galyons on March 20, 2014, 08:02:29 PM
No solvent.  Just a light sanding to smooth out the varnish.  I just finished a  Crack. The varnish had major runs & globs.  I used a sanding block to get it mostly even without cutting through to the stacks.

Cheers,
Geary
Hi Geary.
Are you referring to/talking about MY Crack ?

Guy 13

That would be the one!

Cheers,
Geary

VPI TNT IV/JMW 3D 12+Benz LP-S>  Eros + Auralic Aries + ANK Dac 4.1 >Eros TH+ Otari MX5050 IIIB2 > BeePre >Paramount 300B 7N7 > EV Sentry IV-A

Thorens TD124/Ortofon RMG-212/SPU >Seduction > Smash^Up> Paramour 45 MQ >K12's

Offline Guy 13

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Reply #9 on: March 21, 2014, 04:40:18 PM
Quote from: galyons on March 21, 2014, 10:12:31 AM
Quote from: Guy 13 on March 21, 2014, 12:50:04 AM
Quote from: galyons on March 20, 2014, 08:02:29 PM
No solvent.  Just a light sanding to smooth out the varnish.  I just finished a  Crack. The varnish had major runs & globs.  I used a sanding block to get it mostly even without cutting through to the stacks.

Cheers,
Geary
Hi Geary.
Are you referring to/talking about MY Crack ?

Guy 13

That would be the one!

Cheers,
Geary

Hi Geary.
I should be getting my Crack on April the 11th around 11.30pm,
that the time of arrival of my wife's aunt.
She will also bring with her a 6AS7G RCA with a 12AU7 RCA clear top tunes.
So I will be able to do some tube rolling.
By the time I get back home with the auntie it will probably be around 1.30am,
but I am sure that won't stop me from plug everything and do some listening.
Who knows, I might spen the whole night listening to music.

Guy 13
Sorry for barging in this threat that is not mine.

Rega P3/Exact MM / Rega Apollo / Decware SE84C+ / Bottlehead Crack / Sennheiser HD650 / Grace Mondo RIT/ Omega 7F OB dipole / Double Eminence 12" Acoustinator OB dipole.

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