UV/EB Oligomer
BRC-841
BRC-841: Difunctional Aliphatic Hydrophobic Urethane Acrylate
BRC-841 is a low-molecular-weight, difunctional, hydrophobic urethane acrylate that can be effectively formulated for steel and various plastic hard coatings. The resulting hard, tough film makes an effective non-yellowing protective single-coating. The low water absorption and alkaline resistance make BRC-841 ideal for the following industries: aerospace, automotive, appliances, cosmetic, electronic, industrial, medical devices, metal finishing, and UV-curable inks and coatings.
| Neat Properties | |
|---|---|
| Property | Value |
| Viscosity cP (60ºC) | 13,000 |
| Pt-Co (APHA) Color | 20 |
| Refractive Index (25ºC) | 1.495 |
| Density, g/cm3 (25ºC) | 1.14 |
| Monomer Dilution Properties | ||||||
|---|---|---|---|---|---|---|
| Value | ||||||
| Property | I30 | I50 | TM50 | TP50 | H50 | HE30 |
| Tensile Strength (MPa [psi]) | 51.7 [7500] | 65.5 [9500] | 51.7 [7500] | 41.4 [6000] | 46.2 [6700] | 33.1 [4800] |
| Elongation (%) | 4.7 | 3.9 | 2.2 | 3 | 4.4 | 7.6 |
| Elastic Modulus (MPa [ksi]) | 1,999.5 [290] | 2,482.1 [360] | 2,757.9 [400] | 1,930.5 [280] | 1,654.7 [240] | 1,654.7 [240] |
| Durometer Hardness | 86D | 85D | 91D | 84D | 86D | 86D |
| Water Absorption (%) 24hrs | 0.37 | 0.25 | 0.44 | 0.6 | 0.43 | 1.72 |
| MEK Double Rubs (#) | 10 | 6 | >200 | 86 | 170 | 63 |
| Viscosity (cP) | 13,000 @ 25ºC | 1,900 @ 25ºC | 5,700 @ 25ºC | 1,700 @ 25ºC | 500 @ 25ºC | 4,200 @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure