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B-221 Aliphatic polyurethane acrylate

B-221 is a bifunctional polyurethane acrylate with medium molecular weight, containing polycarbonate structure, fast curing speed, resistance to boiling and yellowing.
Availability:
Quantity:
  • B-221

  • Bossin

Product Specifications:

PropertyIndicators
AppearanceClear liquid
Color (APHA)≤80
Active Ingredient (wt%)100
Viscosity (cps/60oC)3000-4500
Acid Value (mgKOH/g)≤2.0
Specific Gravity (g/cm3)1.07±0.02
Refractive Index / 25oC1.478±0.005
Functionality2

Characteritics:

  • Curing fast

  • Water boiling resistance

Applications:

  • Vacuum plating undercoat

  • UV coating(plastic)

Storage Guidelines:

  • Store at room temperature and keep in dark place.

  • This material should not be stored for more than 6 months.

Package Information:

  • 20L、200L

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