UV/EB Oligomer
BR-302
BR-302: Difunctional Aromatic Polyether Urethane Acrylate Oligomer
BR-302 is a linear aromatic urethane diacrylate, typically used in coatings and adhesives applications where yellowing constraints are not present. The backbone and aromatic content of BR-302 offer excellent chemical resistance and toughness, combined in an affordable oligomer.
| Neat Properties | |
|---|---|
| Property | Value |
| Viscosity cP (60ºC) | 5,600 |
| Pt-Co (APHA) Color | 50 |
| Refractive Index (25ºC) | 1.496 |
| Density, g/cm3 (25ºC) | 1.10 |
| Monomer Dilution Properties | ||||||
|---|---|---|---|---|---|---|
| Value | ||||||
| Property | I30 | I50 | TM50 | TP50 | H50 | HE30 |
| Tensile Strength (MPa [psi]) | 8.3 [1200] | 15.9 [2300] | 30.3 [4400] | 9.7 [1400] | 19.3 [2800] | — |
| Elongation (%) | 100 | 110 | 6 | 10.5 | 9.5 | — |
| Elastic Modulus (MPa [ksi]) | 38.6 [5.6] | 386.1 [56] | 896.3 [130] | 310.3 [45] | 551.6 [80] | — |
| Durometer Hardness | 41D | 70D | 85D | 67D | 73D | — |
| Water Absorption (%) 24hrs | — | — | — | — | — | — |
| MEK Double Rubs (#) | 10 | 6 | >200 | 54 | >200 | — |
| Viscosity (cP) | 6,000 @ 25ºC | 700 @ 25ºC | 3,800 @ 25ºC | 800 @ 25ºC | 300 @ 25ºC | — @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure