UV/EB Oligomer
BR-371MS
BR-371MS: Difunctional Aliphatic Polyether Urethane Methacrylate Oligomer
BR-371MS, a low molecular weight, difunctional, aliphatic polyether urethane methacrylate oligomer, is a great fit for coatings that require high tensile strength, extremely low color, superior hardness, scratch resistance, and weathering resistance. BR-371MS provides very low color and a high viscosity, ideal for hard gel nail coatings, and offers reduced heat generation vs other high tensile strength materials.
| Neat Properties | |
|---|---|
| Property | Value |
| Viscosity cP (60ºC) | 65,000 |
| Pt-Co (APHA) Color | 25 |
| Refractive Index (25ºC) | 1.496 |
| Density, g/cm3 (25ºC) | 1.11 |
| Monomer Dilution Properties | ||||||
|---|---|---|---|---|---|---|
| Value | ||||||
| Property | I30 | I50 | TM50 | TP50 | H50 | HE30 |
| Tensile Strength (MPa [psi]) | 67.6 [9800] | 66.9 [9700] | 62.7 [9100] | 53.8 [7800] | 53.1 [7700] | 66.9 [9700] |
| Elongation (%) | 4.6 | 4.4 | 3.6 | 5.6 | 3.4 | 6.4 |
| Elastic Modulus (MPa [ksi]) | 2,551.1 [370] | 2,482.1 [360] | 2,551.1 [370] | 2,137.4 [310] | 2,137.4 [310] | 2,689.0 [390] |
| Durometer Hardness | 89D | 87D | 91D | 86D | 86D | 90D |
| Water Absorption (%) 24hrs | 0.24 | 0.17 | 0.35 | 0.38 | 0.33 | 0.64 |
| MEK Double Rubs (#) | >200 | 105 | >200 | >200 | >200 | >200 |
| Viscosity (cP) | 33,000 @ 25ºC | 2,800 @ 25ºC | 11,000 @ 25ºC | 900 @ 25ºC | 400 @ 25ºC | 5,300 @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure