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Silicone Tri-Clamp Gaskets are intended to be used when using alcohol as an extraction solvent instead of butane or propane. Silicone has an excellent chemical resistance to alcohols and is the preferred gasket material when using Jacketed Reactors or Tri-Clamp Buchner funnels for post-processing winterization because they have very low extractable characteristics. Silicone gaskets also offer a very good temperature range and will retain their original shape even when compressed for a long duration.
***Note: Silicone is not recommended for use with butane or propane solvents.
|Conformance||USP Class VI, FDA and 3A Compliance|
|-Low Temperature Range||-58°F|
|-Minimum Continous Use (Static)||-40°F|
|-High Temperature Range||+446°F|
|-Maximum for Continous Use (Static)||+446°F|
|Durometer or Hardness Range||65 Shore A|
|Butane||D - Poor|
|Propane (liquified)||D - Poor|
|-Amyl||D - Poor|
|-Butyl||B - Good|
|-Diacetone||D - Poor|
|-Ethyl||B - Good|
|-Hexyl||B - Good|
|-Isobutyl||A - Excellent|
|-Isopropyl||A - Excellent|
|-Methyl||A - Excellent|
|-Octyl||B - Good|
|-Propyl||A - Excellent|
Disclaimer: Best Value Vacs Recommends no more than a -40F Operating Temperature and is not responsible for the user running their system with incompatible chemicals.