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How to identify different types of silicone rubber tube?
Silicone rubber tube, a total of ten different types, with the professional English abbreviations are: NR, IR, BR, SBR, NBR, IIR, EPDM, CR, SR, FKM. So, how to identify these ten types of silicone rubber tube? Qi Yu silicone rubber factory tutor you a way: burning. They burn the phenomenon as follows:
Silicone rubber tube type
Combustion phenomenon appearance combustion flame characteristic residue odor
NR light yellow translucent black smoke, dark yellow flame, soft rubber smell, the residue is not sticky
IR light yellow translucent black smoke, dark yellow flame, changing soft rubber smell residue without viscosity
BR light yellow translucent black smoke, dark yellow flame, soft residue smell; residue without viscosity
SBR light yellow black smoke, dark yellow flame, the soft styrene smell, slightly expanded, non viscous
NBR light yellow - light brown black smoke, dark yellow flame, become soft protein burning smell, no viscosity
IIR colorless, transparent and translucent to smoke, flame melting scattered fasciculate, sweet odor
EPDM white, opaque to smokeless, scattered fasciculate flame, the flame was blue wax smell
CR yellow - pale brown to greenish flame expansion, hydrochloric acid smell
SR white. A translucent opaque medium flammable white smoke, flame bright white lime, smell less
FKM white, opaque very difficult to extinguish, the flame is green and soft, there are poisonous gas
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