Bomar Oligomer Product
UV/EB Oligomer

XR-145S

XR-145S: Trifunctional Aliphatic Polyether Urethane Methacrylate Oligomer

XR-145S, a high molecular weight, trifunctional, aliphatic polyether urethane methacrylate, provides low formulation viscosity and moderate elongation. XR-145S shows adhesion to a variety of substrates, making it a candidate for consideration in mixed surface adhesion applications.

Neat Properties
Property Value
Viscosity cP (25ºC) 60,000
Pt-Co (APHA) Color 20
Refractive Index (25ºC) 1.471
Density, g/cm3 (25ºC) 1.06
Monomer Dilution Properties
Value
Property I30 I50 TM50 TP50 H50 HE30
Durometer Hardness 38D 53D 78D 64D 71D 52D
Elastic Modulus (GPa [ksi]) 68.9 [10] 517.1 [75] 1,241.1 [180] 379.2 [55] 551.6 [80] 137.9 [20]
Elongation (%) 60 120 3.5 11.8 3.5 60
MEK Double Rubs (#) 5 4 >200 7 30 6
Tensile Strength (MPa [psi]) 7.6 [1100] 24.8 [3600] 31.0 [4500] 15.2 [2200] 13.8 [2000] 8.3 [1200]
Water Absorption (%) 24hrs 0.91 0.57 1.09 1.21 0.93 3.84
Viscosity (cP) 3,000 @ 25ºC 600 @ 25ºC 2,500 @ 25ºC 600 @ 25ºC 200 @ 25ºC 1,400 @ 25ºC

Features

  • Low viscosity
  • Increases impact resistance
  • Low skin irritation

Applications

  • Coatings for glass
  • Primer coatings
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