UV/EB Oligomer
BRC-843S
BRC-843S: Difunctional Aliphatic Hydrophobic Urethane Acrylate
BRC-843S 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 a functional, non-yellowing, protective single-coating that extends the substrates use-life. BRC-843S is a softer and more flexible version of BRC-843. This oligomer is also tougher then BRC-843. The low water absorption and alkaline resistance make this oligomer perfect for specialty applications in the following industries: aerospace, appliance, automotive, electronic, and medical device.
| Neat Properties | |
|---|---|
| Property | Value |
| Viscosity cP (60ºC) | 41,000 |
| Pt-Co (APHA) Color | <100 |
| Refractive Index (25ºC) | 1.48 |
| Density, g/cm3 (25ºC) | 1.10 |
| Monomer Dilution Properties | ||||||
|---|---|---|---|---|---|---|
| Value | ||||||
| Property | I30 | I50 | TM50 | TP50 | H50 | HE30 |
| Tensile Strength (MPa [psi]) | 14.5 [2100] | 32.4 [4700] | 27.6 [4000] | 19.3 [2800] | 22.8 [3300] | 7.6 [1100] |
| Elongation (%) | 300 | 400 | 5.9 | 30 | 15 | 240 |
| Elastic Modulus (MPa [ksi]) | 5.5 [0.8] | 10.3 [1.5] | 655.0 [95] | 103.4 [15] | 275.8 [40] | 4.1 [0.6] |
| Durometer Hardness | 36D | 60D | 80D | 61D | 66D | 75D |
| Water Absorption (%) 24hrs | 0.4 | 0.28 | 0.56 | 0.61 | 0.51 | 3.73 |
| MEK Double Rubs (#) | 21 | 25 | >200 | 69 | 195 | 18 |
| Viscosity (cP) | 24,000 @ 25ºC | 3,000 @ 25ºC | 13,000 @ 25ºC | 3,200 @ 25ºC | 1,500 @ 25ºC | 9,900 @ 25ºC |
** Tensile Properties per ASTM D882 - Not Tested || Incompatible X Unable to Measure