UV/EB Oligomer
BR-541MB
BR-541MB: Difunctional Aliphatic Polyether Urethane Methacrylate Oligomer
BR-541MB is a difunctional aliphatic polyether urethane methacrylate. BR-541MB is used for its desirable balance of toughness and flexibility and its ability to adhere to a variety of substrates. This oligomer is an excellent candidate to consider for use in impact-resistant coatings on various substrates when used with BR-543MB. This material has low skin sensitivity and is INCI registered for compliance in cosmetic applications.
| Neat Properties | |
|---|---|
| Property | Value |
| Viscosity cP (60ºC) | 6,400 |
| Pt-Co (APHA) Color | 15 |
| Refractive Index (25ºC) | 1.49 |
| Density, g/cm3 (25ºC) | 1.07 |
| Monomer Dilution Properties | ||||||
|---|---|---|---|---|---|---|
| Value | ||||||
| Property | I30 | I50 | TM50 | TP50 | H50 | HE30 |
| Tensile Strength (MPa [psi]) | 28.3 [4100] | 26.9 [3900] | 40.7 [5900] | 22.8 [3300] | 31.0 [4500] | 21.4 [3100] |
| Elongation (%) | 85 | 55 | 3.4 | 15 | 6.8 | 100 |
| Elastic Modulus (MPa [ksi]) | 586.1 [85] | 1,516.8 [220] | 1,723.7 [250] | 758.4 [110] | 1,034.2 [150] | 344.7 [50] |
| Durometer Hardness | 74D | 81D | 87D | 77D | 80D | 76D |
| Water Absorption (%) 24hrs | 0.44 | 0.28 | 0.52 | 0.6 | 0.46 | 1.87 |
| MEK Double Rubs (#) | 73 | 35 | >200 | 30 | 90 | 28 |
| Viscosity (cP) | 7,400 @ 25ºC | 1,000 @ 25ºC | 4,600 @ 25ºC | 1,000 @ 25ºC | 400 @ 25ºC | 2,400 @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure