UV/EB Oligomer
BRC-4421M
BRC-4421M: Difunctional Aliphatic Hydrophobic Urethane Methacrylate
BRC-4421M is a difunctional, hydrophobic urethane methacrylate 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) | 5,300 |
| Pt-Co (APHA) Color | 50 |
| Refractive Index (25ºC) | 1.48 |
| Density, g/cm3 (25ºC) | 1.08 |
| Monomer Dilution Properties | ||||||
|---|---|---|---|---|---|---|
| Value | ||||||
| Property | I30 | I50 | TM50 | TP50 | H50 | HE30 |
| Tensile Strength (MPa [psi]) | 29.0 [4200] | 31.0 [4500] | 41.4 [6000] | 25.5 [3700] | 26.2 [3800] | 17.9 [2600] |
| Elongation (%) | 120 | 110 | 3 | 14 | 7 | 110 |
| Elastic Modulus (MPa [ksi]) | 1,172.1 [170] | 1,654.7 [240] | 2,068.4 [300] | 896.3 [130] | 965.3 [140] | 758.4 [110] |
| Durometer Hardness | 79D | 79D | 88D | 78D | 80D | 71D |
| Water Absorption (%) 24hrs | 0.10 | 0.05 | 0.17 | 0.18 | 0.12 | 0.5 |
| MEK Double Rubs (#) | 27 | 17 | >200 | 10 | 63 | 11 |
| Viscosity (cP) | 6,000 @ 25ºC | 1,000 @ 25ºC | 4,500 @ 25ºC | 1,000 @ 25ºC | 500 @ 25ºC | 2,300 @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure