UV/EB Oligomer
BR-742MS
BR-742MS: Difunctional Aliphatic Polyester Urethane Acrylate Oligomer
BR-742MS is a variant of BR-742M with non-detectable (<10 ppm) MeHQ content to comply with regulatory requirements for both salon and retail nail coating applications in Europe.
This oligomer has an excellent balance of gloss, low color, removability, durability, and low heat generation during the cure process.
| Neat Properties | |
|---|---|
| Property | Value |
| Viscosity cP (60ºC) | 25,000 |
| Pt-Co (APHA) Color | 25 |
| Refractive Index (25ºC) | 1.48 |
| Density, g/cm3 (25ºC) | 1.11 |
| Monomer Dilution Properties | ||||||
|---|---|---|---|---|---|---|
| Value | ||||||
| Property | I30 | I50 | TM50 | TP50 | H50 | HE30 |
| Tensile Strength (MPa [psi]) | 15.9 [2300] | 22.1 [3200] | 38.6 [5600] | 21.4 [3100] | 30.3 [4400] | 17.9 [2600] |
| Elongation (%) | 65 | 65 | 3.0 | 8.0 | 7.0 | 100 |
| Elastic Modulus (GPa [ksi]) | 482.6 [70] | 1,172.1 [170] | 1,516.8 [220] | 689.5 [100] | 827.4 [120] | 448.2 [65] |
| Durometer Hardness | 81D | 84D | 90D | 81D | 82D | 80D |
| Water Absorption (%) 24hrs | 0.31 | 0.21 | 0.39 | 0.49 | 0.36 | 1.43 |
| MEK Double Rubs (#) | 10 | 7 | >200 | 15 | 70 | 45 |
| Viscosity (cP) | 18,000 @ 25ºC | 1,400 @ 25ºC | 8,900 @ 25ºC | 1,400 @ 25ºC | 400 @ 25ºC | 3,500 @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure