Black Glue Peril

"Gareth Magennis"

What the KRKs use goes rock hard and has to be chipped of with *ridiculous* amounts of force.

I have been using a jeweller's screwdriver, hit repeatedly with a back end of a small shifting spanner.

Stone mason's stuff.

... Phil

"Gareth Magennis"

Time and a bit of heat turns it into rock.

So it matches, when used to achieve an air seal around them, like in this case.

... Phil

Ouch. That could be serious. If the conductive carbon particles remain suspended in solution, the goo will not be conductive because the space between the particles is filled with the non-conductive base glue. However, if the carbon particles are heavier than the glue, they might precipitate out of the colloidal solution, and settle to the bottom of the glue joint. The carbon particles might then overlap each other, producing a conductive layer. If the carbon particles are lighter than the glue, they could float to the surface and form a conductive layer on the surface. Much depends on how the goo was mixed and applied. If it hardens quickly, I don't think there will be a problem. If it hardens very slowly, expect trouble. If it was diluted with solvent, it probably produce conductive clumps of carbon.

Ouch. That could be serious. If the conductive carbon particles remain suspended in solution, the goo will not be conductive because the space between the particles is filled with the non-conductive base glue. However, if the carbon particles are heavier than the glue, they might precipitate out of the colloidal solution, and settle to the bottom of the glue joint. The carbon particles might then overlap each other, producing a conductive layer. If the carbon particles are lighter than the glue, they could float to the surface and form a conductive layer on the surface. Much depends on how the goo was mixed and applied. If it hardens quickly, I don't think there will be a problem. If it hardens very slowly, expect trouble. If it was diluted with solvent, it probably produce conductive clumps of carbon.

There may be other factors involved. This adhesive is typically found in powered speakers, which can undergo quite large temperature change cycles. This could regularly soften the glue, which might in turn cause cyclic migration or clumping of any free conductive particles therein.

But I'm not an adhesive expert, this is all just an interesting guess.

Gareth.

"Arfa Daily"

It is also highly flammable and toxic - so it must do the job ....

... Phil

"dave"

Is there a particular reason you posted that to me right now ?

Juts what do you think you are doing - Dave ??

... Phil

Pointing out that KRK was a good company until Gibson bought them. Their original monitors are quite good. In fact, they turned my head at the AES convention where they were debuted.

"I can feel my mind going, Dave. Thee is no question about it."

"I can feel my mind going, Dave. Thee is no question about it."