Sunday, January 29, 2012

Hot Vulcanizing


 




J.H. Ashdown Hardware Co., Ltd., Winnipeg.  1953/1954 catalogue


7 comments:

Iuval Clejan said...

Are the hot patches really vulcanizing rubber (that is already vulcanized)? Like forming new S-S crosslinks between an already crosslinked (but maybe a few free C-H bonds left) polymer and a virgin (not-vulcanized, crosslinked) polymer? Perhaps they are first de-vulcanizing the old rubber?

Anonymous said...

where can I buy the patches for the machine and the machine

The Duke said...

The only place you'll find the clamp is at a yard sale or flea bay. The patches are virtually unavailable in North America.

Anonymous said...

Electric clamps and patches are available at http://patchboy.com
There are still shops in Mexico that do vulcanized patches with electric clamps
I say bring them back in the U.S. as I've had many glue type patches fail

The Duke said...

Thanks for this. However, I visited the site, and their stuff is too expensive for most of us. A far cry from the cheap vulcanizing patches that used to be sold cheaply at Canadian Tire.

Unknown said...

I miss using these as a kid. They were simple, reliable, and fast. My opinion is the "new" rubber repair kits are junk in comparison. Directions followed exactly, I'm sure new ones are fine. Older ones were more idiot proof... I was told as a kid a semi-truck trailer of these match-patches caught on fire, leading to them being banned in the U.S. I think it's to bad. Those patches worked awesome!

Mister G said...

I have never used them, but I agree I can't get a reliable patch job with modern kits. Thanks for the comment, Gerald