UV/EB Oligomer
BR-345
BR-345: Difunctional Aliphatic Polyether Urethane Acrylate Oligomer
BR-345 is a difunctional polyether urethane acrylate that provides unique properties for 3D printing resins. This soft material is ideal for use in applications where high elongation is desired, and can be used as an additive for impact resistance. Resins with less than 1000 cps can be formulated with this material when monomer levels are above 50%
| Neat Properties | |
|---|---|
| Property | Value |
| Viscosity cP (25ºC) | 42,000 |
| Pt-Co (APHA) Color | 5 |
| Refractive Index (25ºC) | 1.456 |
| Density, g/cm3 (25ºC) | 1.01 |
| Monomer Dilution Properties | ||||||
|---|---|---|---|---|---|---|
| Value | ||||||
| Property | I30 | I50 | TM50 | TP50 | H50 | HE30 |
| Tensile Strength (MPa [psi]) | 0.7 [95] | 4.1 [600] | 10.3 [1500] | 7.6 [1100] | 7.6 [1100] | 0.8 [110] |
| Elongation (%) | 120 | 400 | 2.6 | 19.4 | 6.5 | 290 |
| Elastic Modulus (MPa [ksi]) | 1.0 [0.15] | 4.6 [0.66] | 448.2 [65] | 137.9 [20] | 172.4 [25] | — |
| Durometer Hardness | 21A | 32A | 61D | 36D | 93A | 25A |
| Water Absorption (%) 24hrs | 1.21 | 0.82 | 1.69 | 1.51 | 1.29 | 6.82 |
| MEK Double Rubs (#) | 4 | 4 | 10 | 5 | 6 | 10 |
| Viscosity (cP) | 5,500 @ 25ºC | 1,400 @ 25ºC | 4,800 @ 25ºC | 1,500 @ 25ºC | 900 @ 25ºC | 4,200 @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure