Bomar Oligomer Product
UV/EB Oligomer

BR-1042MB

BR-1042MB: Difunctional Aliphatic Polyether Urethane Methacrylate

BR-1042MB is a bio-based polyether urethane methacrylate oligomer with a substantial amount of bio-based content and is tin-free.  This is a medium hardness version of our bio-based products.  This oligomer has a good balance of toughness and flexibility.  The bio-based backbone, methacrylate functionality and tin-free nature make this an excellent choice for consumer applications with low irritancy.

Neat Properties
Property Value
Viscosity cP (60ºC) 4,000
Pt-Co (APHA) Color 50
Refractive Index (25ºC) 1.482
Density, g/cm3 (25ºC) 1.08
Monomer Dilution Properties
Value
Property I30 I50 TM50 TP50 H50 HE30
Durometer Hardness 58D 70D 86D 73D 76D 71D
Elastic Modulus (GPa [ksi]) 68.9 [10] 482.6 [70] 1,516.8 [220] 586.1 [85] 758.4 [110] 379.2 [55]
Elongation (%) 75 110 3.0 20 5.6 70
MEK Double Rubs (#) 61 27 >200 54 >200 56
Tensile Strength (MPa [psi]) 11.7 [1700] 23.4 [3400] 34.5 [5000] 24.1 [3500] 23.4 [3400] 15.2 [2200]
Water Absorption (%) 24hrs 0.81 0.46 0.88 1.05 0.73 3.78
Viscosity (cP) 4,800 @ 25ºC 780 @ 25ºC 3,000 @ 25ºC 790 @ 25ºC 360 @ 25ºC 1,900 @ 25ºC

Features

  • Tin free
  • High bio-based content
  • Balance of hardness and flexibility
  • Low MeHQ

Applications

  • Tough 3D printing inks
  • Bio-based nail coatings
  • Low skin irritation
  • Impact resistant
  • Low yellowing
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