Button and key of electronic products, all kinds of single key and sheet key.

Physical Properties Measuring Equipment Test Method Unit Data
Model       NJ-LSR2140 NJ-LSR2145 NJ-LSR2088
Application       Normal Key Normal Key Long Life Key
Appearance       Subtransparnet Subtransparnet Subtransparnet
Viscosity Viscometer   mPa.s 80,000 80,000 80,000
Shore Hardness Shore Durometer GB/T 531.1-2008 A0 40 43 43
Tensile Strength Electronic Tension Tester GB/T 528-2009 Mpa 5.5 5.5 7
Elongation At Break Electronic Tension Tester GB/T 528-2009 % 320 300 350
Tear Strength
Die B
Electronic Tension Tester GB/T 529-2008 KN/m 12 12 15
Mixing Ratio 1:1 weight mixing.
Test Condition Mold temperature 120℃,cured time 5 minutes.
Package 20Kg/Pail, 200Kg/Drum.
Room temperature less than 30℃, do not contact water, avoid sun exposure.
Expiry Date 12 months,finish within 6 months is the best.