Bomar Oligomer Product
UV/EB Oligomer

XR-9416

XR-9416: Trifunctional Aliphatic Water-dilutable Urethane Acrylate

XR-9416 is a water-dilutable aliphatic urethane acrylate, used for scratch resistant coatings with excellent chemical resistance. XR-9416 contains no water, but is infinitely dilutable with D.I. water. Uncured or residual UV formulations made with XR-9416 have improved cleanability with water. While the material does enhance hydrophilicity of the cured material, the high crosslink density makes the material relatively resistant to hydrolysis.

Neat Properties
Property Value
Viscosity cP (25ºC) 5,000
Pt-Co (APHA) Color 65
Refractive Index (25ºC) 1.49
Density, g/cm3 (25ºC) 1.14
Monomer Dilution Properties
Value
Property I30 I50 TM50 TP50 H50 HE30
Durometer Hardness 84D 83D 92D 83D 81D 85D
Elastic Modulus (GPa [ksi]) 1,379.0 [200] 1,861.6 [270] 2,344.2 [340] 1,379.0 [200] 1,379.0 [200] 827.4 [120]
Elongation (%) 2.0 2.7 1.6 4.0 2.8 5.0
MEK Double Rubs (#) 55 33 >200 92 82 63
Tensile Strength (MPa [psi]) 24.1 [3500] 39.3 [5700] 35.2 [5100] 35.2 [5100] 32.4 [4700] 21.4 [3100]
Water Absorption (%) 24hrs 4.98 1.14 3.56 3.31 3.35 9.47
Viscosity (cP) 600 @ 25ºC 140 @ 25ºC 800 @ 25ºC 170 @ 25ºC 80 @ 25ºC 130 @ 25ºC

Features

  • Scratch resistant oligomer
  • Enhances crosslink density in waterborne formulas
  • Improves water-cleanability of UV inks and
    coatings
  • 100% solids
  • Dilutable in water
  • Allows for water wash of uncured 3D
    printed resins

Applications

  • Waterborne coatings and inks
  • Water-washable UV formulations
  • Antifog coatings
  • Emusifier for incompatible formulations
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