BRC-843M
BRC-843M: Difunctional Aliphatic Hydrophobic Urethane Acrylate
BRC-843M 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, medicaldevice, metal finishing, and UV-curable inks & coatings. BRC-843M 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-843M also shows excellent adhesion to ABS, PVC, PMMA, and polystyrene.
| Neat Properties | |
|---|---|
| Property | Value |
| Viscosity cP (60ºC) | 21,000 |
| Pt-Co (APHA) Color | 42 |
| Refractive Index (25ºC) | 1.48 |
| Density, g/cm3 (25ºC) | 1.12 |
| Monomer Dilution Properties | ||||||
|---|---|---|---|---|---|---|
| Value | ||||||
| Property | I30 | I50 | TM50 | TP50 | H50 | HE30 |
| Tensile Strength (MPa [psi]) | 12.4 [1800] | 26.9 [3900] | 31.7 [4600] | 15.9 [2300] | 26.9 [3900] | 20.7 [3000] |
| Elongation (%) | 80 | 120 | 3.7 | 11 | 8.6 | 100 |
| Elastic Modulus (MPa [ksi]) | 124.1 [18] | 586.1 [85] | 1,172.1 [170] | 413.7 [60] | 620.5 [90] | 344.7 [50] |
| Durometer Hardness | 50D | 67D | 84D | 70D | 74D | 63D |
| Water Absorption (%) 24hrs | 0.41 | 0.26 | 0.48 | 0.56 | 0.4 | 1.8 |
| MEK Double Rubs (#) | 57 | 8 | >200 | 67 | 50 | 25 |
| Viscosity (cP) | 16,000 @ 25ºC | 2,000 @ 25ºC | 10,000 @ 25ºC | 2,000 @ 25ºC | 1,000 @ 25ºC | 5,800 @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure