KJay,
All the talc is, is more or less baby powder, scented chalk.
One thing I found with using gloves during the summer, is to get really thin cotton gloves, having been a wicket-keeper in cricket before, I tried out my old "inners" (gloves worn under the actual keeping gloves) and have a good stock of them here, cotton, being a natural fibre, enables your hands to breathe, as opposed to nylon or stuff like that.
The reason behind you not having good dexterity when wearing them could be down to the gloves being slightly too large, gloves are like shoes, as in, they will seriously damage your feet if you try and wear a pair that are not sized to your feet.
Trumpy,
The only reason I use the actual Salisbury Ten-Four Glove Dust is because the manufacturer says that it is produced specifically for high voltage rubber or Salcor gloves and does not damage or reduce the dielectric value of the gloves.
It probably is nothing more than just talc, but when it comes to higher voltages and grounded equipment, I don't like to horse around. If something were to happen, I don't want anyone to be able to say it was because I wasn't using a product approved for the purpose.
With the Class 0's, the loss in dexterity I mention is only due to the slight added thickness of the summer liners. These are the white knit ones from the same manufacturer as the gloves. They just don't seem to work for me. In the summer, after wearing my gloves to make up drop connections, when I remove them my hands are soaked, even when using the liners. When I tip the gloves up, sweat dribbles out of them.
I find that the thicker winter liners add even greater loss of dexterity, so I try not use them either unless the gloves are unbearably cold.
