UV/EB Oligomer
BR-582
BR-582: 2.4 Functional Aliphatic Polyether Urethane Acrylate
BR-582 is a 2.4 average functional aliphatic polyether urethane acrylate. As with other BR-500 series materials, BR-582 is designed to offer a balance of benefits between toughness and flexibility. While only slightly lower in tensile strength and hardness than BR-571, BR-582 has almost double the total elongation at break. BR-582 responds quickly to UV cure, owing to its elevated functionality.
| Neat Properties | |
|---|---|
| Property | Value |
| Viscosity cP (60ºC) | 179,000 |
| Pt-Co (APHA) Color | 25 |
| Refractive Index (25ºC) | 1.475 |
| Density, g/cm3 (25ºC) | 1.15 |
| Monomer Dilution Properties | ||||||
|---|---|---|---|---|---|---|
| Value | ||||||
| Property | I30 | I50 | TM50 | TP50 | H50 | HE30 |
| Tensile Strength (MPa [psi]) | 22.8 [3300] | 20.7 [3000] | 26.9 [3900] | 13.1 [1900] | 8.3 [1200] | — |
| Elongation (%) | 210 | 170 | 10 | 9 | 3 | — |
| Elastic Modulus (MPa [ksi]) | 37.2 [5.4] | 16.5 [2.4] | 482.6 [70] | 310.3 [45] | 68.9 [10] | — |
| Durometer Hardness | 61D | 56D | 72D | 67D | 36D | — |
| Water Absorption (%) 24hrs | — | — | — | — | — | — |
| MEK Double Rubs (#) | 39 | 16 | >200 | 83 | >200 | — |
| Viscosity (cP) | 100,000 @ 25ºC | 7,000 @ 25ºC | 20,000 @ 25ºC | 6,600 @ 25ºC | 3,300 @ 25ºC | — @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure