Diaphram coating

[audioquestM-40]

I've spent time reading over many excellent posts recently, and have a hard time decifering what is the best coating to use? The Lycron seems to be quite high up on the list of opinions, but it's also difficult to get in Canada unless a case-lot is purchased.
Also, the home brew using white glue seems somewhat popular.

I do want to start the project soon, but want to be sure to use a good coating that will last.

[CharlieM]

Originally Posted by audioquestM-40

I've spent time reading over many excellent posts recently, and have a hard time decifering what is the best coating to use? The Lycron seems to be quite high up on the list of opinions, but it's also difficult to get in Canada unless a case-lot is purchased.
Also, the home brew using white glue seems somewhat popular.

I do want to start the project soon, but want to be sure to use a good coating that will last.

My friend Mavric called Techspray and they sent him a sample for free (really). Absent that, give this source a try:
TechSpray - 1756-8S - Chemicals - Chemicals & Adhesives - Allied Electronics

[audioquestM-40]

Originally Posted by CharlieM

My friend Mavric called Techspray and they sent him a sample for free (really). Absent that, give this source a try:
TechSpray - 1756-8S - Chemicals - Chemicals & Adhesives - Allied Electronics

I tried Allied and they don't normally stock it in our area, so a 12 pack case at $38/can is the minimum order. I won't give up yet, maybe other outlets in Vancouver will have it.

Thanks

[CharlieM]

Originally Posted by audioquestM-40

I tried Allied and they don't normally stock it in our area, so a 12 pack case at $38/can is the minimum order. I won't give up yet, maybe other outlets in Vancouver will have it.

Thanks

Check your messages I just PM'd you.

[starz00700]

I was able to get a can (including/shipping) for less than $40 US - but I live in the US so do not know what cost would be for delivery to Canada - link:Shop By Category - All-Spec Industries - search for Licron

[NewVista]

I popped for a can of this and only recently tried it -- I seem to measure high resistance 300 M-ohms @ inch spacing (compared to ~ 40 M-ohms/in on an original Quad '63 diaphragm and even less on a Koss - ~10 M/in)(Koss coating is black like Quad & painted on by the look of it)

Measured using VTVM + copper pennies on leads like Sanders suggests.