For those of you who do not have a lathe and punch CO2 seals out of various materials, I found this at the weekend. A deluxe sink mat by Addis, consisting of 300 discs which are the size of a 20p. They are just over 2mm in thickness which is ideal for a lot of capsule seals. The material has a good Shore hardness and seems similar to polyurethane, and may well be that material. I am just conducting a test punching a few different sizes out to see how it reacts to CO2. At £2.49 it is a bargain for doing repairs.

Baz

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