#polyvinyl_siloxane
Polyvinyl siloxane
Polyvinyl siloxane (PVS), also called poly-vinyl siloxane, vinyl polysiloxane (VPS), or vinylpolysiloxane, is an addition-reaction silicone elastomer. It is a viscous liquid that cures (solidifies) quickly into a rubber-like solid, taking the shape of whatever surface it was lying against while curing. As with two-part epoxy, its package keeps its two component liquids in separate tubes until the moment they are mixed and applied, because once mixed, they cure (harden) rapidly. Polyvinyl siloxane is widely used in dentistry as an impression material. It is also used in other contexts where an impression similar to a dental impression is needed, such as in audiology or in industrial applications. Polyvinyl siloxane was commercially introduced in the 1970s.
Tue 31st
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