UV/EB Oligomer
BRC-4421
BRC-4421: Difunctional Aliphatic Hydrophobic Urethane Acrylate Oligomer
BRC-4421 is a difunctional, hydrophobic urethane acrylate that can be formulated into chemical and temperature-resistant coatings and resins. The material has low color and excellent adhesion to a wide variety of plastics. The material can be formulated into tough, impact-resistant 3D printing resins with excellent flexibility. It's ultra-low water absorption makes this an excellent choice for moisture-sensitive or hydrophobic applications.
| Neat Properties | |
|---|---|
| Property | Value |
| Viscosity cP (60ºC) | 6,600 |
| Pt-Co (APHA) Color | 50 |
| Refractive Index (25ºC) | 1.48 |
| Density, g/cm3 (25ºC) | 1.09 |
| Monomer Dilution Properties | ||||||
|---|---|---|---|---|---|---|
| Value | ||||||
| Property | I30 | I50 | TM50 | TP50 | H50 | HE30 |
| Tensile Strength (MPa [psi]) | 20.7 [3000] | 22.8 [3300] | 42.7 [6200] | 24.1 [3500] | 31.0 [4500] | 9.0 [1300] |
| Elongation (%) | 120 | 30 | 3.1 | 11 | 6.8 | 120 |
| Elastic Modulus (MPa [ksi]) | 620.5 [90] | 1,447.9 [210] | 1,999.5 [290] | 1,034.2 [150] | 1,103.2 [160] | 172.4 [25] |
| Durometer Hardness | 75D | 81D | 88D | 79D | 81D | 75D |
| Water Absorption (%) 24hrs | 0.17 | 0.13 | 0.27 | 0.3 | 0.21 | 0.99 |
| MEK Double Rubs (#) | 72 | 25 | >200 | 98 | 62 | 18 |
| Viscosity (cP) | 6,800 @ 25ºC | 1,100 @ 25ºC | 5,300 @ 25ºC | 1,200 @ 25ºC | 500 @ 25ºC | 2,600 @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure