Bomar Oligomer Product
UV/EB Oligomer

BR-970H

BR-970H: Difunctional Aliphatic Urethane Acrylate Oligomer

BR-970H is a low viscosity, difunctional, aliphatic urethane acrylate. BR-970H has a high modulus and doesn't necessarily need to be blended with other oligomers to achieve a balance of toughness and flexibility. BR-970H offers rapid cure and non-yellowing properties where premium performance is required. This oligomer is perfect for 2D and 3D inkjet applications as well for use in graphic arts applications.

Neat Properties
Property Value
Viscosity cP (25ºC) 24,000
Pt-Co (APHA) Color 65
Refractive Index (25ºC) 1.49
Density, g/cm3 (25ºC) 1.20
Monomer Dilution Properties
Value
Property I30 I50 TM50 TP50 H50 HE30
Durometer Hardness 83D 84D 90D 84D 83D 82D
Elastic Modulus (GPa [ksi]) 1,447.9 [210] 1,516.8 [220] 1,930.5 [280] 1,379.0 [200] 1,241.1 [180] 1,379.0 [200]
Elongation (%) 6.5 4.5 3.3 11 5.2 10
MEK Double Rubs (#) 34 15 >200 154 >200 40
Tensile Strength (MPa [psi]) 31.7 [4600] 37.2 [5400] 44.1 [6400] 26.9 [3900] 32.4 [4700] 23.4 [3400]
Water Absorption (%) 24hrs 0.26 0.20 0.35 0.39 0.31 1.39
Viscosity (cP) 1,400 @ 25ºC 260 @ 25ºC 1,300 @ 25ºC 280 @ 25ºC 120 @ 25ºC 100 @ 25ºC

Features

  • Very low viscosity
  • High modulus
  • Improved HDT vs BR-970BT
  • Hydrolytic stability
  • Rapid cure
  • Non-yellowing
  • Abrasion and chemical resistance
  • Stain resistance

Applications

  • Inkjet printing
  • Graphic arts
  • High HDT 3D printing resins
  • Automotive coatings
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