BUP 640

About
Characteristics: Low gel time Very Low color High viscosity Good physical and mechanical properties after curing Good flexibility and transparency Applications: Button Goods that need high transparency&&

Product Description
Generic热固性聚酯
Material StatusCommercial: Active
FeaturesGood Clarity,Good flexibility,High Viscosity,Low speed solidification point
AvailabilitysAfrica & Middle East ,Asia Pacific,Europe

Technical Data
PHYSICALNominal valueUnitTest method
Shrinkage rate
MD< 1.0%
Water absorption rate
balance< 0.30%
acid value< 25.00mg KOH/g
Gardner color< 0.300 

THERMALNominal valueUnitTest method
Melting peak temperature< 170
Hot deformation temperature> 50

Uncured PropertiesNominal valueUnitTest method
Solid content69 to 73%
viscosity
25℃1.2 to 1.7Pa·s
Curing time0.13 to 0.17hr
Gelation time8.0 to 10min

MECHANICALNominal valueUnitTest method
Babbitt hardness> 35 
tensile strength> 45.0MPa
Tensile strain
fracture> 5.0%
bending strength> 90.0MPa

Notes
1. Typical properties: these are not to be construed as specifications.
2. Curing condition with 0.25% Co (1%) and 2% MEKP (50%)
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