UV/EB Oligomer
BR-571MB
BR-571MB: Difunctional Aliphatic Polyether Urethane Methacrylate Oligomer
BR-571MB, a difunctional, aliphatic polyether urethane methacrylate, is used for its desirable balance of toughness and flexibility and its ability to adhere to a variety of substrates. It is an excellent choice for impact-resistant coatings. BR-571MB also brings desirable weather resistance and low-yellowing properties to formulations utilizing it.
| Neat Properties | |
|---|---|
| Property | Value |
| Viscosity cP (60ºC) | 27,000 |
| Pt-Co (APHA) Color | 15 |
| Refractive Index (25ºC) | 1.494 |
| Density, g/cm3 (25ºC) | 1.07 |
| Monomer Dilution Properties | ||||||
|---|---|---|---|---|---|---|
| Value | ||||||
| Property | I30 | I50 | TM50 | TP50 | H50 | HE30 |
| Tensile Strength (MPa [psi]) | 27.6 [4000] | 26.2 [3800] | 47.6 [6900] | 25.5 [3700] | 31.0 [4500] | 26.2 [3800] |
| Elongation (%) | 65 | 25 | 3.6 | 7.5 | 6.1 | 65 |
| Elastic Modulus (MPa [ksi]) | 689.5 [100] | 1,447.9 [210] | 1,930.5 [280] | 896.3 [130] | 965.3 [140] | 758.4 [110] |
| Durometer Hardness | 70D | 77D | 86D | 74D | 77D | 71D |
| Water Absorption (%) 24hrs | 0.38 | 0.23 | 0.48 | 0.58 | 0.40 | 1.56 |
| MEK Double Rubs (#) | 80 | 22 | >200 | 91 | >200 | 122 |
| Viscosity (cP) | 31,000 @ 25ºC | 2,700 @ 25ºC | 13,000 @ 25ºC | 2,600 @ 25ºC | 1,000 @ 25ºC | 9,500 @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure