Could you point me to some that you recommend that gives a smattering of sizes that are in the vicinity of what is used for atomizers?Fastech has a large selection of generic orings for atomizers.
UPDATED:Actually I've been into auto mechanics for years, but don't have micrometer. The ones I will need are for the topfill cap that is 22mm (O-ring is just a tad smaller and not very thick) Don't know if they are rubber or silicone though... it's black.
There may be more on FT besides these.Could you point me to some that you recommend that gives a smattering of sizes that are in the vicinity of what is used for atomizers?
Yes, but which ones are common sizes for atomizers? All of them or just the ones that are sold out? lolThere may be more on FT besides these.
https://www.fasttech.com/category/0/search/p/0?&keywords=Rubber+O-Ring+Seals+for+E-Cigarettes
Aren’t they both simply types of silicone?@vaper1960 EPDM, FKM and FFKM are good choices as well for o rings. Just look for the types that are used for food and pharmaceutical manufacturing.
EPDM is the least hardwaring, and FFKM is the most hardwaring. And they're much better than Silicone.
Also, don't forget Shore Hardness with the materials that they use to make o rings, the higher the number the harder it is to compress and the easier it stays in shape.
No.Aren’t they both simply types of silicone?
I didn’t realize there was a difference. When I said “micrometer” I was referring to basically that exact device. I bought mine in a different place but it looks identical right down to the button colors on the plastics. It measures down to hindredths of a millimeter and I was able to get accurate measurements of single thicknesses of paper. Iirc the packaging actually said “micrometer”. A caliper to my memory is a pair of arced pieces of metal that are screwed together at the top.For measuring o-rings these calipers will be plenty accurate enough 6 in. Digital Caliper
Just don't squeeze the ring when you measure use a light touch. Calipers are easier to measure o-rings than micrometers.
McMaster Carr is another source fo get them from.
I was a Tool Maker for nearly 40 years and measured many an o-ring and machined many a groove that they fit in.
So noted.@bombastinator. EPDM, FKM and FFKM aren't at all related to Silicone.
EPDM is a synthetic rubber, FKM and FFKM are fluoroelastomers.