Bomar Oligomer Product
UV/EB Oligomer

BR-970BT

BR-970BT: Trifunctional Aliphatic Urethane Acrylate Oligomer

BR-970BT is a low molecular weight, difunctional, aliphatic urethane acrylate. BR-970BT can be blended with other oligomers to achieve a balance of toughness and flexibility. BR-970BT offers rapid cure and low yellowing properties where premium performance is required.

Neat Properties
Property Value
Viscosity cP (25ºC) 10,000
Pt-Co (APHA) Color 32
Refractive Index (25ºC) 1.489
Density, g/cm3 (25ºC) 1.12
Monomer Dilution Properties
Value
Property I30 I50 TM50 TP50 H50 HE30
Durometer Hardness 75D 82D 88D 77D 80D 59D
Elastic Modulus (GPa [ksi]) 827.4 [120] 1,654.7 [240] 1,999.5 [290] 1,034.2 [150] 1,172.1 [170] 206.8 [30]
Elongation (%) 34.0 6.0 4.0 15.0 11.0 65.0
MEK Double Rubs (#) 16 19 >200 79 >200 11
Tensile Strength (MPa [psi]) 22.1 [3200] 39.3 [5700] 53.8 [7800] 27.6 [4000] 39.3 [5700] 17.2 [2500]
Water Absorption (%) 24hrs 0.31 0.22 0.40 0.52 0.36 2.14
Viscosity (cP) 1,000 @ 25ºC 230 @ 25ºC 1,100 @ 25ºC 270 @ 25ºC 100 @ 25ºC 450 @ 25ºC

Features

  • Low viscosity
  • Hydrolytic stability
  • Abrasion and chemical resistant
  • Excellent cure response
  • Glossy finish
  • Non-yellowing
  • Stain-resistant
  • Impact-resistant

Applications

  • Inkjet printing
  • Graphic arts
  • Rapid prototyping 3D printing resins
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