UV/EB Oligomer
XR-741MS
XR-741MS: Difunctional Aliphatic Polyester Urethane Methacrylate Oligomer
XR-741MS, a low molecular weight, difunctional, aliphatic polyester urethane methacrylate, can be effectively formulated for adhesion to steel, aluminum, and various plastics. The
resulting hard, tough film makes an effective, non-yellowing protective coating. This material has low skin sensitivity for dental and cosmetic applications.
| Neat Properties | |
|---|---|
| Property | Value |
| Viscosity cP (60ºC) | 52,000 |
| Pt-Co (APHA) Color | 30 |
| Refractive Index (25ºC) | 1.500 |
| Density, g/cm3 (25ºC) | 1.24 |
| Monomer Dilution Properties | ||||||
|---|---|---|---|---|---|---|
| Value | ||||||
| Property | I30 | I50 | TM50 | TP50 | H50 | HE30 |
| Tensile Strength (MPa [psi]) | 55.8 [8100] | 55.8 [8100] | 60.7 [8800] | 44.8 [6500] | 45.5 [6600] | 42.7 [6200] |
| Elongation (%) | 4.5 | 3.5 | 3.5 | 6.5 | 4.5 | 7 |
| Elastic Modulus (MPa [ksi]) | 2,206.3 [320] | 2,068.4 [300] | 2,344.2 [340] | 1,723.7 [250] | 1,516.8 [220] | 1,723.7 [250] |
| Durometer Hardness | 89D | 88D | 91D | 86D | 86D | 90D |
| Water Absorption (%) 24hrs | 0.21 | 0.18 | 0.33 | 0.38 | 0.31 | 0.79 |
| MEK Double Rubs (#) | 145 | 13 | >200 | >200 | >200 | >200 |
| Viscosity (cP) | 19,000 @ 25ºC | 1,000 @ 25ºC | 8,000 @ 25ºC | 1,100 @ 25ºC | 300 @ 25ºC | 3,000 @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure