UV/EB Oligomer
BR-541S
BR-541S: Difunctional Aliphatic Polyether Urethane Acrylate Oligomer
BR-541S is a difunctional, polyether urethane acrylate that is used for its desirable balance of toughness and flexibility. It adheres readily to a variety of substrates including cold rolled steel, glass, PC, and stainless steel. It is an excellent choice for impact-resistant coatings. BR-541S is desirable for use in cosmetic applications where color stability and optically clear tough coatings are needed.
| Neat Properties | |
|---|---|
| Property | Value |
| Viscosity cP (60ºC) | 3,000 |
| Pt-Co (APHA) Color | 50 |
| Refractive Index (25ºC) | 1.49 |
| Density, g/cm3 (25ºC) | 1.06 |
| Monomer Dilution Properties | ||||||
|---|---|---|---|---|---|---|
| Value | ||||||
| Property | I30 | I50 | TM50 | TP50 | H50 | HE30 |
| Tensile Strength (MPa [psi]) | 21.4 [3100] | 23.4 [3400] | 35.9 [5200] | 24.1 [3500] | 26.9 [3900] | 19.3 [2800] |
| Elongation (%) | 120 | 80 | 4 | 17 | 9 | 140 |
| Elastic Modulus (MPa [ksi]) | 48.3 [7] | 482.6 [70] | 1,034.2 [150] | 344.7 [50] | 517.1 [75] | 27.6 [4] |
| Durometer Hardness | 62D | 77D | 87D | 75D | 76D | 35D |
| Water Absorption (%) 24hrs | 0.52 | 0.32 | 0.48 | 0.66 | 0.48 | 2.67 |
| MEK Double Rubs (#) | 18 | 9 | >200 | 21 | 40 | 6 |
| Viscosity (cP) | 3,800 @ 25ºC | 600 @ 25ºC | 2,600 @ 25ºC | 600 @ 25ºC | 230 @ 25ºC | 1,300 @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure