Bomar Oligomer Product
UV/EB Oligomer

BR-1043MB

BR-1043MB: Difunctional Aliphatic Polyether Urethane Methacrylate Oligomer

BR-1043MB is a bio-based polyether urethane methacrylate oligomer with a majority percentage of bio-based content. This oligomer provides excellent low-temperature flexibility, elasticity, and excellent dynamic properties and rebound with a lower viscosity versus similar polyether chemistries. The oligomer exhibits a higher degree of heat resistance vs other polyether oligomers. The high bio-based backbone and methacrylate functionality make this an excellent candidate for consumer applications with low irritancy requirements.

Neat Properties
Property Value
Viscosity cP (60ºC) 5,100
Pt-Co (APHA) Color 40
Refractive Index (25ºC) 1.47
Density, g/cm3 (25ºC) 1.10
Monomer Dilution Properties
Value
Property I30 I50 TM50 TP50 H50 HE30
Durometer Hardness 70A 40D 80D 57D 65D 37D
Elastic Modulus (GPa [ksi]) 9.0 [1.3] 103.4 [15] 896.3 [130] 241.3 [35] 379.2 [55] 103.4 [15]
Elongation (%) 130 180 4 8 7 5
MEK Double Rubs (#) 41 13 >200 16 100 18
Tensile Strength (MPa [psi]) 5.5 [800] 13.8 [2000] 24.8 [3600] 13.1 [1900] 13.8 [2000] 7.6 [1100]
Water Absorption (%) 24hrs 1.3 0.7 1.5 1.4 1.1 4.7
Viscosity (cP) 6,700 @ 25ºC 1,300 @ 25ºC 5,000 @ 25ºC 1,400 @ 25ºC 800 @ 25ºC 3,800 @ 25ºC

Features

  • Low temperature flexibility
  • Low modulus
  • High bio-based content
  • Low yellowing
  • High rebound
  • Excellent elasticity

Applications

  • Nail coatings
  • Impact-resistant coatings
  • Flexible 3D printing resins
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