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2. Neoprene - Wikipedia

   en.wikipedia.org/wiki/Neoprene

   Neoprene's burn point is around 260 °C (500 °F). [21] In its native state, neoprene is a very pliable rubber-like material with insulating properties similar to rubber or other solid plastics. Neoprene foam is used in many applications and is produced in either closed-cell or open-cell form.

3. List of commercially available roofing materials - Wikipedia

   en.wikipedia.org/wiki/List_of_commercially...

   Membrane roofing consists of large sheets, generally fused in some way at the joints to form a continuous surface. Cured Thermoset membrane (e.g. EPDM rubber, Neoprene). Synthetic rubber Cured Thermosets are synthetic rubbers that have undergone the vulcanization or "Curing" process. Seams of materials are bonded by adhesives or chemicals ...

4. Chloroprene - Wikipedia

   en.wikipedia.org/wiki/Chloroprene

   Chloroprene is produced in three steps from 1,3-butadiene: (i) chlorination, (ii) isomerization of part of the product stream, and (iii) dehydrochlorination of 3,4-dichlorobut-1-ene. Chlorine adds to 1,3-butadiene to afford a mixture of 3,4-dichlorobut-1-ene and 1,4-dichlorobut-2-ene. The 1,4-dichloro isomer is subsequently isomerized to 3,4 ...

5. Vulcanization - Wikipedia

   en.wikipedia.org/wiki/Vulcanization

   The vulcanization of neoprene or polychloroprene rubber (CR rubber) is carried out using metal oxides (specifically MgO and ZnO, sometimes Pb 3 O 4) rather than sulfur compounds which are presently used with many natural and synthetic rubbers.

6. Polyisoprene - Wikipedia

   en.wikipedia.org/wiki/Polyisoprene

   In practice polyisoprene is commonly used to refer to synthetic cis-1,4-polyisoprene, made by the industrial polymerisation of isoprene. Natural forms of polyisoprene are also used in substantial quantities, the most important being " natural rubber " (mostly cis -1,4-polyisoprene), which is derived from the sap of trees.

7. EPDM rubber - Wikipedia

   en.wikipedia.org/wiki/EPDM_rubber

   EPDM rubber (ethylene propylene diene monomer rubber) [1] [2] [3] is a type of synthetic rubber that is used in many applications. EPDM is an M-Class rubber under ASTM standard D-1418; the M class comprises elastomers with a saturated polyethylene chain (the M deriving from the more correct term polymethylene).