What is the polymer materal in the seal?
292178
No the back of it, It said that it is a silicon gaskets to prevent leaks, dishwasher safe, sorry it to long to get back with you.
512214
3/8" Phenolic Resin. Think very hard black plastic. It's strong and does the job well.
1095723
It's the American Standard seal. It's small--perhaps 1.5" wide by .5" high. Also, it's not really black. It's a soft silver with small black lettering.
2164767
The seal is rubber and the quality is such that you could use them for canning or food storage. Buy in confidence.
1225581
It is polymer. I would add that it appears quite sturdy and durable, though admittedly I have not properly tested it. The fit on my Core15-M4 is perfect. One drawback in my opinion is that it is quite difficult to switch between the large and small apertures. Selecting apertures requires too much work and fine manipulation and therefore cannot be done "on the fly." All in all, I'd say it's worth the price but would like to see an improvement to the aperture selection feature.
2236224
A high temp polymer. Have used ours several times in a toaster, no signs of a problem.
730634
The actual packaging states "rubber seal". On the bottom of the box it states rubber seal and vinyl bag.
356535
Yes. I tested mine and the seal is complete. I find this accessory to be of good quality and functional. Have had no problems and use it often
963984
As far as I know is polymer(plastic) I am not a chemist, so contact them. Check on Pyramid.com
1297243
I haven't owned it long enough (i.e. field tested it) to judge. Need to realize that there are several seals - not only the obvious perimeter seal, but internal ones around the lens and sensors. They are thin seals, very flexible, but quality. I have an old professional scuba camera and to maintain the seals you use vaseline. I'm going to use that same maintenance trick on these seals to (hopefully) maintain their integrity. Hope that helps.
1570804
Plastic- non bpa - the safe plastic- I can't remember on the sealing-however I am picky and if it does not seem food safe I will not giive a good review- I would buy this again- Cheers
200454
Polyester. I carry 3 gallons of milk A case of pop and much more. It holds up real good
1310849
Just a thin straight line, maybe 1mm wide, up to 2 depending on the pressure you apply. In my experience it's been airtight for positive and negative (vacuum) pressures. The seal is very clean looking, and can be repeated one after another if a wider seal is desired (just tried this). It's got an adjustable timer too so you can seal different thickness plastics with ease.
131247
There wasn't any plastic seal but there was a strip of sticky paper holding the cover to the container.
1311684
Wow, it's been so long, I can't remember exactly. I believe it goes inside the valve to push on the seal. Sorry I can't be better help.
1685326
metal. nice and sturdy. I use it all the time to seal small herb filled bags.
28567
I kinda had the same question, it has the word organic on it, but not the seal I am used to