Q: Are these made from silicone?
A: These are currently produced from a food-grade rubber material
Q: need gasket for older grolsch bottle ... the old gasket is not flat but is more cup shaped with a hole in middle ....will your gaskets work? only need a few...
A: these will be a flatter gasket as the cupped shape is normaly built up over time during use but should be abel to be used on any of the swing top or grolsch style bottles
Q: What is the Thickness of the gasket?
A: The gasket is 1/8" thick
Q: Are these the same very bright red as on the Grolsch bottles or is it the faded brown like the picture?
A: Actually these change from an orange color to a bright red depending on the shipment. These are not a consistent color from the vendor, currently we have both in stock. If you place an order for them, add notes in the comments section and you can ask for a specific color. We will do our best to accommodate you.
Q: I have some olive oil bottles from Italy needing gaskets such as these I think. The dimensions I need are approx one inch wide with the interior hole at 7/16 inch.
Will these work?
A: These gaskets have 1" diameter with a center hole of 5/16". You may be able to ream out the hole slightly to make it work, but it does not fit those dimensions as manufactured.