UV/EB Oligomer
BR-741MD1
BR-741MD1: Difunctional Aliphatic Polyester Urethane Methacrylate Oligomer
BR-741MD1 is an aliphatic, difunctional polyester urethane methacrylate offering excellent adhesion and flexibility. While not limited to these applications, BR-741MD1 is an effective choice in optically clear coatings and inks for plastics and metals. This oligomer is also perfect for UV & LED nail gel coatings because this material has low skin sensitivity and is INCI listed.
| Neat Properties | |
|---|---|
| Property | Value |
| Viscosity cP (60ºC) | 2,000 |
| Pt-Co (APHA) Color | 30 |
| Refractive Index (25ºC) | 1.48 |
| Density, g/cm3 (25ºC) | 1.1 |
| Monomer Dilution Properties | ||||||
|---|---|---|---|---|---|---|
| Value | ||||||
| Property | I30 | I50 | TM50 | TP50 | H50 | HE30 |
| Tensile Strength (MPa [psi]) | 66.2 [9600] | 60.7 [8800] | 48.3 [7000] | 57.9 [8400] | 53.1 [7700] | 53.8 [7800] |
| Elongation (%) | 4 | 3.5 | 2.3 | 4.5 | 3.0 | 3.8 |
| Elastic Modulus (MPa [ksi]) | 2,826.9 [410] | 2,551.1 [370] | 3,033.7 [440] | 2,620.0 [380] | 2,482.1 [360] | 2,551.1 [370] |
| Durometer Hardness | 90D | 91D | 94D | 88D | 89D | 92D |
| Water Absorption (%) 24hrs | 0.21 | 0.16 | 0.38 | 0.40 | 0.31 | 0.60 |
| MEK Double Rubs (#) | >200 | 154 | >200 | >200 | >200 | >200 |
| Viscosity (cP) | 2,600 @ 25ºC | 300 @ 25ºC | 2,100 @ 25ºC | 300 @ 25ºC | 120 @ 25ºC | 800 @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure