BR-345
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 |
Durometer Hardness | 21A | 32A | 61D | 36D | 93A | 25A |
Elastic Modulus (GPa [ksi]) | 1.0 [0.15] | 4.6 [0.66] | 448.2 [65] | 137.9 [20] | 172.4 [25] | — |
Elongation (%) | 120 | 400 | 2.6 | 19.4 | 6.5 | 290 |
MEK Double Rubs (#) | 4 | 4 | 10 | 5 | 6 | 10 |
Tensile Strength (MPa [psi]) | 0.7 [95] | 4.1 [600] | 10.3 [1500] | 7.6 [1100] | 7.6 [1100] | 0.8 [110] |
Water Absorption (%) 24hrs | 1.21 | 0.82 | 1.69 | 1.51 | 1.29 | 6.82 |
Viscosity (cP) | 5,500 @ 25ºC | 1,400 @ 25ºC | 4,800 @ 25ºC | 1,500 @ 25ºC | 900 @ 25ºC | 4,200 @ 25ºC |