UV/EB Oligomer
BR-581MT
BR-581MT: Difunctional Aliphatic Tack-Free Topcoat Oligomer
BR-581MT is an oligomer blend that provides a low color, tack-free cure under low-intensity LED cure conditions. BR-581MT provides a balance of hardness and flexibility for abrasion resistance on flexible substrates, while also yielding a high-gloss, non-yellowing finish. This product is a resin blend containing 25% DEGDMA, is tin-free, is fully INCI listed, and can be formulated into a tack-free top coat for nail gel applications. For further recommendations on formulating for nail applications, please see our sell sheet for a starting point formula.
| Neat Properties | |
|---|---|
| Property | Value |
| Viscosity cP (25ºC) | 8,000 |
| Pt-Co (APHA) Color | 35 |
| Refractive Index (25ºC) | |
| Density, g/cm3 (25ºC) | |
| Monomer Dilution Properties | ||||||
|---|---|---|---|---|---|---|
| Value | ||||||
| Property | I30 | I50 | TM50 | TP50 | H50 | HE30 |
| Tensile Strength (MPa [psi]) | 1.9 [270] | 4.1 [600] | 31.7 [4600] | 13.8 [2000] | 25.5 [3700] | ‖ |
| Elongation (%) | 50 | 70 | 1.7 | 24 | 10.5 | ‖ |
| Elastic Modulus (MPa [ksi]) | 19.3 [2.8] | 172.4 [25] | 2,413.2 [350] | 206.8 [30] | 965.3 [140] | ‖ |
| Durometer Hardness | 42D | 66D | 87D | D64 | D78 | ‖ |
| Water Absorption (%) 24hrs | 0.27 | 0.19 | 0.28 | 0.47 | 0.31 | ‖ |
| MEK Double Rubs (#) | 12 | 6 | >200 | 65 | >200 | ‖ |
| Viscosity (cP) | 1,100 @ 25ºC | 300 @ 25ºC | 1,200 @ 25ºC | 340 @ 25ºC | 180 @ 25ºC | ‖ @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure