BRC-843
BRC-843: Difunctional Aliphatic Hydrophobic Urethane Acrylate
BRC-843 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, non-yellowing, protective single-coating that extends the substrates use-life. The low water absorption and alkaline resistance make this oligomer perfect for the following industries: aerospace, appliance, automotive, cosmetic, electronic, industrial, medical device, metal finishing, and UV-curable inks & coatings. BRC-843 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-843 also shows excellent adhesion to ABS, PVC, PMMA, and Polystyrene.
| Neat Properties | |
|---|---|
| Property | Value |
| Viscosity cP (25ºC) | 90,000 |
| Pt-Co (APHA) Color | 30 |
| 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]) | 9.7 [1400] | 9.0 [1300] | — | 8.3 [1200] | 8.3 [1200] | 6.9 [1000] |
| Elongation (%) | 180 | 70 | — | 13.0 | 5.0 | 160 |
| Elastic Modulus (MPa [ksi]) | 5.5 [0.8] | 55.2 [8] | — | 137.9 [20] | 206.8 [30] | 6.9 [1] |
| Durometer Hardness | 52D | 70D | — | 70D | 72D | 31D |
| Water Absorption (%) 24hrs | 0.4 | 0.3 | — | 0.6 | 0.5 | 2.5 |
| MEK Double Rubs (#) | 22 | 19 | — | 35 | >200 | 62 |
| Viscosity (cP) | 5,700 @ 25ºC | 900 @ 25ºC | — @ 25ºC | 1,000 @ 25ºC | 500 @ 25ºC | 2,300 @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure