Shielding paint inside amp cab?

[Uncle Daddy]

I recently bought an amp cab from Mojotone that's painted none more black inside, and though I haven't checked it for conductivity yet, I was wondering if it could be shielding paint like the sort you sometimes find in pickup cavities.

Anybody given it a try?

 

[john_cribbin]

I'd guess it's unlikely, conductive paint is fairly expensive and a cab is fairly large. You'd also have a potential safety issue if mains electricity came in contact with the cab.

More likely it's just to seal the cabinet from moisture especially if it's something like MDF.

 

[Peegoo]

@Uncle Daddy

Many cab and amp makers use a flat black water-based latex paint on the interior surfaces prior to covering. It's strictly cosmetic but it makes a big difference in the finished appearance because bare wood looks halfway done.

Shielding paint would work, but I've never seen it used by a maker. Many amp makers staple metal screening inside the top panel. Fender and others have also sometimes used adhesive-backed aluminum foil or stapled cardboard-backed foil to the inside. This last one is a real pain in the arse because it tends to curl downward and often snags and rips when sliding out the chassis for repairs.

 

[sds1]

The shielding needs to make a good electrical connection with the chassis so that it becomes part of the circuit ground, this may be easier said than done depending on the chassis finish.

 

[NickK_chugchug]

It’s easier to close the chassis shielding by placing copper/aluminium tape or sheet under it and then bolt the chassis through it.

 

[Wally]

Many cab and amp makers use a flat black water-based latex paint on the interior surfaces prior to covering. It's strictly cosmetic but it makes a big difference in the finished appearance because bare wood looks halfway done.

And then there is Mark Bartel who says that it took him some trial and error to find the right recipe for the ‘paint’ he uses inside cabs. He claims to have found that sonics can be affected by whatever is used to paint the inside of the cab.

 

[sds1]

And then there is Mark Bartel who says that it took him some trial and error to find the right recipe for the ‘paint’ he uses inside cabs. He claims to have found that sonics can be affected by whatever is used to paint the inside of the cab.

He's a pretty smart guy, personally I would give that some consideration.

 

[PCollen]

I recently bought an amp cab from Mojotone that's painted none more black inside, and though I haven't checked it for conductivity yet, I was wondering if it could be shielding paint like the sort you sometimes find in pickup cavities.

Anybody given it a try?

I never have heard of the color "none more black" . .

 

[PCollen]

And then there is Mark Bartel who says that it took him some trial and error to find the right recipe for the ‘paint’ he uses inside cabs. He claims to have found that sonics can be affected by whatever is used to paint the inside of the cab.

LOL...and I'd bet that he has just the paint you need for sale.

 

[Wally]

Have you seen the picture from early Tone King days of the pile of cabs that he through from the 2nd or 3rd story window to destroy because they did not yield the sonics that pleased him. He has been quoted saying that he may have destroyed 100-150 trial cabs before he found the formula that met his ears’ demands? Some obsessions pay off, eh?

 

[Wally]

LOL...and I'd bet that he has just the paint you need for sale.

I doubt that.

 

[Telenator]

Over time, unsealed wood decays because the wood absorbs moisture which raises the grain causing it become more absorbent and eventually weaken do to it expanding.

Sealing the wood makes it retain its strength and integrity much longer than unsealed wood.

 

[Wally]

Over time, unsealed wood decays because the wood absorbs moisture which raises the grain causing it become more absorbent and eventually weaken do to it expanding.

Sealing the wood makes it retain its strength and integrity much longer than unsealed wood.

And I would suppose that Bartel was working on the sonic reflective qualities of that sealing paint.
Maybe…..paint with higher metallic content emphasizes high end?? If you add hemp fibers, it warms the sonics??

 

[Peegoo]

And then there is Mark Bartel who says that it took him some trial and error to find the right recipe for the ‘paint’ he uses inside cabs. He claims to have found that sonics can be affected by whatever is used to paint the inside of the cab.

He sells it on his Website.

 

[Peegoo]

^^^ Don't drink Windex, kids!

 

[Uncle Daddy]

I never have heard of the color "none more black" . .

It was the colour used on the sleeve of Spinal Tap's album.

 

[PCollen]

He sells it on his Website.

I have some clear fingernail polish that will improve the tone that's in your fingers....

 

[NTC]

Vantablack - Wikipedia

en.m.wikipedia.org

 

[String Tree]

I recently bought an amp cab from Mojotone that's painted none more black inside, and though I haven't checked it for conductivity yet, I was wondering if it could be shielding paint like the sort you sometimes find in pickup cavities.

Anybody given it a try?

I really doubt Shielding paint was used.

 

[PCollen]

Over time, unsealed wood decays because the wood absorbs moisture which raises the grain causing it become more absorbent and eventually weaken do to it expanding.

Sealing the wood makes it retain its strength and integrity much longer than unsealed wood.

That may be true for my wooden deck off the back of my house, or for Rory Gallagher's stolen Strat found lying in a drainage ditch. Most music gear is not regularly exposed to warm, damp environments. If that were the case, it would certainly be a factor mentioned in the evaluation, and pricing, of vintage musical instruments. But I've never heard anyone mention that the cabinet wood of a vintage amplifier has not been sealed. Nevertheless, if it may be a concern, wouldn't brushing the interior of a wooden amp/speaker cabinet, or the raw wood body of a guitar , with Thompson's Clear Water Seal suffice ?