Kynar tape around magnets?

[Joe Gwinn]

You may mean Kapton, and it is certainly very tough.

Kynar and Kapton may be different brand names for the same thing.

And, thinner is better, in pickups. Kapton/Kynar doesn't creep much, so the winding wires should not be able to "swim" through the film.

[DrStrangelove]

Kynar and Kapton may be different brand names for the same thing.

They are distinct.

Kynar is a tough clear-colored poly vinylidine fluoride film possessing a high dielectric constant ~7 and exploitable piezoelectric qualities. It was used extensively in wire-wrapped construction of electronic prototypes in the 1980's.

Kapton is an amber-colored polyimide possessing a low dielectric constant ~3.4 and is usable in bulk (not film) to 900F. It has poor abrasion resistance.

This is just off the top of my head.
Wikipedia will give you the complete story.

-drh

[Old Tele man]

..teflon "cold flows" and is NOT a good insulator under 'pressure.'

[kevinT]

For my modern pickups, I use 3M's 1318-1 Polyester Film Tape with Acrylic Pressure-Sensitive Adhesive to wrap the coil for my humbuckers. Although I have not yet tried it, I'm thinking that it will also work to insulate the magnet rods on the single coils after dipping them in lacquer.

Here is the data sheet for the 1318 tape.

http://multimedia.3m.com/mws/mediawe...6EVs6E666666--

http://rshughes.com/catalog/

is the source that I use

[kevinT]

whoops....just realized rshughs is out of stock of the 1/4 inch 1318-1 to wrap humbucker coils. Permacel also manufactures something similar which i also have used. Data sheet is below.

http://www.permacel.com/pdfs/280_281.pdf

Here is a source:

http://www.oemwire.com/p281tape.htm

[Possum]

cool.....

Good this is what I was trying to find thats like the tape Guitar Jones has/had. This stuff looks like black cellophane tape right?

[Possum]

out of stock?

I don't see anything that says they are out of stock at RSHughes, I put 6 rolls in the cart and nothing saying they don't have it....where did you hear that one?

[kevinT]

I don't see anything that says they are out of stock at RSHughes, I put 6 rolls in the cart and nothing saying they don't have it....where did you hear that one?

yep, I ordered some too, but the sales person sent me an email after placing my order last week and he said that they no longer carry the .25 or 1/4 1318-1 (black) in stock and that i would have to buy 144 rolls...a case. They had other sizes in stock and the yellow in .25 and the black in 3/8 but not the 1/4 inch.

I was thinking of buying 144 roles and selling some. I have the permacel equivalent and it is not as good as the 3M. 3M is the shit!!!! Fo Sure!!

The polyester film with acrylic adhesive is really nice stuff.... very thin and tear resistant.

The sales person is going to get me pricing for a case.

[kevinT]

oh...Dave.....also i forgot to mention.... RShughs has various servicing warehouses in different regions of the US...so the warehouse (closer to you) that is fullfilling your order still might have small quantities to send you.

The servicing warehouse for me is in Baltimore, MD and they said that they no longer carry the 3M 1/4 inch 1318-1 (black) in smaller quantities any more.

Therefore, you still might get your order....let me know how it turns out for you. If not, i just might buy the 144 rolls and i can sell some to folks on the forum maybe.