BRC-443
BRC-443: Difunctional Aliphatic Hydrophobic Urethane Acrylate Oligomer
BRC-443 is a difunctional, hydrophobic urethane acrylate which can be formulated to be used in heavy-duty industrial and commercial applications. The resulting tough film makes an effective low-yellowing, protective single-coating that extends the substrate’s use-life. The low water absorption and acid and alkaline resistance make this oligomer perfect for the following industries: aerospace, appliance, automotive, electronics, industrial, medical device, metal finishing, and UV-curable inks & coatings. BRC-443 exhibits retention of mechanical properties after exposure to high temperatures (200°C for 30 minutes). In addition to the adhesion properties listed in the table below, BRC-443 also shows excellent adhesion to ABS, PVC, PMMA, Nylon-6, and Polystyrene.
| Neat Properties | |
|---|---|
| Property | Value |
| Viscosity cP (60ºC) | 20,000 |
| Pt-Co (APHA) Color | 20 |
| Refractive Index (25ºC) | 1.48 |
| Density, g/cm3 (25ºC) | 1.09 |
| Monomer Dilution Properties | ||||||
|---|---|---|---|---|---|---|
| Value | ||||||
| Property | I30 | I50 | TM50 | TP50 | H50 | HE30 |
| Tensile Strength (MPa [psi]) | 10.3 [1500] | 11.0 [1600] | — | 9.0 [1300] | 9.7 [1400] | 8.3 [1200] |
| Elongation (%) | 220 | 95 | — | 14 | 6.5 | 180 |
| Elastic Modulus (MPa [ksi]) | 5.5 [0.8] | 65.5 [9.5] | — | 172.4 [25] | 206.8 [30] | 7.6 [1.1] |
| Durometer Hardness | 58D | 72D | — | 70D | 74D | 40D |
| Water Absorption (%) 24hrs | 0.3 | 0.2 | — | 0.4 | 0.3 | 2.4 |
| MEK Double Rubs (#) | 18 | 17 | — | 20 | 14 | 15 |
| Viscosity (cP) | 15,000 @ 25ºC | 1,700 @ 25ºC | — @ 25ºC | 1,900 @ 25ºC | 800 @ 25ºC | 4,200 @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure