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) | 8,000 |
| Pt-Co (APHA) Color | 20 |
| Refractive Index (25ºC) | 1.488 |
| Density, g/cm3 (25ºC) | 1.08 |
| Monomer Dilution Properties | ||||||
|---|---|---|---|---|---|---|
| Value | ||||||
| Property | I30 | I50 | TM50 | TP50 | H50 | HE30 |
| Tensile Strength (MPa [psi]) | 22.1 [3200] | 24.1 [3500] | 44.1 [6400] | 27.6 [4000] | 27.6 [4000] | 16.5 [2400] |
| Elongation (%) | 80 | 10.8 | 4.2 | 25 | 5.8 | 95 |
| Elastic Modulus (MPa [ksi]) | 344.7 [50] | 1,034.2 [150] | 1,516.8 [220] | 620.5 [90] | 827.4 [120] | 96.5 [14] |
| Durometer Hardness | 69D | 70D | 88D | 79D | 79D | 68D |
| Water Absorption (%) 24hrs | 0.67 | 0.57 | 0.62 | 0.67 | 0.54 | 1.82 |
| MEK Double Rubs (#) | 35 | 13 | 135 | 77 | 52 | 38 |
| Viscosity (cP) | 8,900 @ 25ºC | 1,200 @ 25ºC | 5,100 @ 25ºC | 1,100 @ 25ºC | 420 @ 25ºC | 2,600 @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure