UV/EB Oligomer
BR-3641AA
BR-3641AA: 1.3 Functional Aliphatic Polyether Urethane Acrylate Oligomer
BR-3641AA is an aliphatic polyether urethane acrylate with a high molecular weight and theoretical 1.3 functionality. Films formulated with BR-3641AA are highly flexible, elastomeric, and tacky. When formulated as an adhesive, this oligomer is excellent as an adhesion promoter or reactive tackifier. This oligomer offers improved adhesion to a variety of substrates.
| Neat Properties | |
|---|---|
| Property | Value |
| Viscosity cP (60ºC) | 7,000 |
| Pt-Co (APHA) Color | 10 |
| Refractive Index (25ºC) | 1.46 |
| Density, g/cm3 (25ºC) | 1.00 |
| Monomer Dilution Properties | ||||||
|---|---|---|---|---|---|---|
| Value | ||||||
| Property | I30 | I50 | TM50 | TP50 | H50 | HE30 |
| Tensile Strength (MPa [psi]) | 0.1 [20] | 3.0 [440] | 6.2 [900] | 4.8 [700] | 4.8 [700] | ‖ |
| Elongation (%) | 170 | 1,000 | 2.7 | 15 | 8.2 | ‖ |
| Elastic Modulus (MPa [ksi]) | X | X | X | X | X | ‖ |
| Durometer Hardness | 09A | 24D | 59D | 35D | 40D | ‖ |
| Water Absorption (%) 24hrs | 1.23 | 0.75 | 1.75 | 1.6 | 1.31 | ‖ |
| MEK Double Rubs (#) | 19 | 9 | 131 | 8 | 8 | ‖ |
| Viscosity (cP) | 7,600 @ 25ºC | 1,700 @ 25ºC | 7,500 @ 25ºC | 2,000 @ 25ºC | 1,300 @ 25ºC | 6,300 @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure