Bomar Oligomers® BR-990S2
- CASE Ingredients Features
- Chemical ResistanceGood ElongationLow ViscosityLow YellowingStain Resistance
BR-990S2 is a dual-functional urethane acrylate with isocyanate functional groups. While products formulated with BR-990S2 can be cured with a UV light source, a free isocyanate can also react with ambient moisture to complete the curing process. This UV+moisture curing process will benefit applications where shadow areas are present. BR—990S2 can also be used as a component in a 2K UV+Heat curable product, the other component being a polyol, glycol, or other compound with OH functional groups. A diol, or compound with two OH groups, will exhibit the best properties because it enables chain growth rather than chain termination. BR-990S2 exhibits good flexibility and develops good tensile strength when cured using both UV light and moisture. More flexible products can also be formulated with BR-990S2, different polyols, and UV+heat curing processes.
Identification
- CASE Ingredients Functions
- Oligomer
Product families
Applications
- Chemical Manufacturing
- Resin Manufacturing
Product Families
- Oligomers
- Acrylics Acrylates & Methacrylates
Other characteristics
- Brand
- Bomar Oligomers
- Safety
This product is intended for industrial use only. Keep out of the reach of children. Avoid breathing vapors. Avoid contact with skin, eyes, and clothing. Wear impervious gloves. Repeated or continuous skin contact with uncured material may cause irritation. Remove material from skin with soap and water. Never use organic solvents to remove material from skin and eyes. For more information on the safe handling of this material, please refer to the Safety Data Sheet before use.
- Markets
- Industrial
- Features
- Flexible dual cure oligomer
- Low viscosity
- Non yellowing
- Good adhesion to plastics and steel
- Excellent hydrolytic stability
- Good weatherability
- Cure
- Radiation Cure
- Coating Type
- Radiation Curable Coating
- Technology
- Base Chemicals & Intermediates
- CASE Ingredients
- Packaging Type
- Drums
- Pails
- Totes (IBC)
- Adhesion
* Recommended ** Highly Recommended *** Strongly Recommended
- Typical Formulations
- * Brookfield – CAP 2000+ @ 25°C.
- Base Chemicals End Uses
- 3D Printing Resins
- Acrylic Resins
- Resins
- UV and Heat Cure Properties
Ratio of 1:1 Part A:Part B UV cured with OmniradTM 184 and 819; ** Per ASTM D882
- Certifications and Compliance
- ISO 9001
- REACH (Europe)
- RoHS Compliant
- Cured Mechanical Properties
** Per ASTM D882 – Not Tested || Incompatible X Unable to Measure
- UV and Moisture Cure Properties
BR-990S2 diluted in 30% IBOA, cured with 2 phr of OmniradTM 184 (No photoinitiator in Moisture Only); For UV cured materials, two passes at 20 ft/min under Fusion D bulb, 2.1 inches.; Moisture cure for 11 days at 25 C/50%RH, when NCO peak was gone on IR.; Tensile strips are ~10 mils/250 microns
- Compatible Substrates and Surfaces
- Metal
- Plastics
- Steel
Technical data
Table 1 of 1
5 rows| Characteristic | Value | Unit |
|---|---|---|
| Avg. Acrylate Functionality | 1 | — |
| Density (at 25°C) | 1.13 | g/cm3 |
| Refractive Index (at 25°C) | 1.49 | — |
| NCO | 10 | % |
| Viscosity (at 60°C) | 2 | cP |
