UV/EB Oligomer
BR-573M
BR-573M: Difunctional Aliphatic Polyether Urethane Methacrylate
BR-573M is a tin-free difunctional aliphatic polyether urethane methacrylate. BR-573M is an excellent candidate to consider for use in tough 3D printing resins or nail gel applications. As a primary oligomer, BR-573M offers excellent properties of hardness, adhesion and optical clarity. As a co-oligomer, BR-573M can be used to improve an existing formulation’s adhesion and impact resistance. This product has low skin sensitivity and good optical properties.
| Neat Properties | |
|---|---|
| Property | Value |
| Viscosity cP (60ºC) | 33,000 |
| Pt-Co (APHA) Color | 43 |
| Refractive Index (25ºC) | 1.480 |
| Density, g/cm3 (25ºC) | 1.03 |
| Monomer Dilution Properties | ||||||
|---|---|---|---|---|---|---|
| Value | ||||||
| Property | I30 | I50 | TM50 | TP50 | H50 | HE30 |
| Tensile Strength (MPa [psi]) | 6.4 [930] | 10.3 [1500] | 24.8 [3600] | 10.3 [1500] | 15.9 [2300] | 9.0 [1300] |
| Elongation (%) | 110 | 150 | 4.9 | 11.5 | 9.3 | 110 |
| Elastic Modulus (MPa [ksi]) | 9.7 [1.4] | 35.2 [5.1] | 758.4 [110] | 206.8 [30] | 344.7 [50] | 68.9 [10] |
| Durometer Hardness | 76A | 44D | 76D | 56D | 61D | 48D |
| Water Absorption (%) 24hrs | 0.70 | 0.43 | 1.32 | 1.19 | 0.94 | 4.31 |
| MEK Double Rubs (#) | >200 | 26 | >200 | 30 | >200 | >200 |
| Viscosity (cP) | 32,000 @ 25ºC | 5,300 @ 25ºC | 20,000 @ 25ºC | 5,900 @ 25ºC | 3,000 @ 25ºC | 19,000 @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure