UV/EB Oligomer
BR-970BT
BR-970BT: Difunctional Aliphatic Urethane Acrylate Oligomer
BR-970BT is a low molecular weight, difunctional, aliphatic urethane acrylate. BR-970BT can be blended with other oligomers to achieve a balance of toughness and flexibility. BR-970BT offers rapid cure and low yellowing properties where premium performance is required.
| Neat Properties | |
|---|---|
| Property | Value |
| Viscosity cP (25ºC) | 10,000 |
| Pt-Co (APHA) Color | 32 |
| Refractive Index (25ºC) | 1.489 |
| Density, g/cm3 (25ºC) | 1.12 |
| Monomer Dilution Properties | ||||||
|---|---|---|---|---|---|---|
| Value | ||||||
| Property | I30 | I50 | TM50 | TP50 | H50 | HE30 |
| Tensile Strength (MPa [psi]) | 22.1 [3200] | 39.3 [5700] | 53.8 [7800] | 27.6 [4000] | 39.3 [5700] | 17.2 [2500] |
| Elongation (%) | 34.0 | 6.0 | 4.0 | 15.0 | 11.0 | 65.0 |
| Elastic Modulus (MPa [ksi]) | 827.4 [120] | 1,654.7 [240] | 1,999.5 [290] | 1,034.2 [150] | 1,172.1 [170] | 206.8 [30] |
| Durometer Hardness | 75D | 82D | 88D | 77D | 80D | 59D |
| Water Absorption (%) 24hrs | 0.31 | 0.22 | 0.40 | 0.52 | 0.36 | 2.14 |
| MEK Double Rubs (#) | 16 | 19 | >200 | 79 | >200 | 11 |
| Viscosity (cP) | 1,000 @ 25ºC | 230 @ 25ºC | 1,100 @ 25ºC | 270 @ 25ºC | 100 @ 25ºC | 450 @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure