Bomar Oligomers® BR-643
- CASE Ingredients Features
- Acid ResistanceAlkali ResistanceGood Hydrolysis ResistanceHigh Dielectric PropertiesHigh GlossImproves AdhesionLow Temperature FlexibilityLow Water Absorption
- Chemical Family
- Urethane Acrylate/Isocyanate
Bomar®BR-643 is a polybutadiene (PBD) urethane acrylate. Designed to meet rigorous electronic applications, BR-643 has many desirable properties typical to PBD resins, combined with radiation curability. In applications requiring thermal cycling resistance, BR-643 withstands the extremes of temperature typical of such tests,without undue degradation of properties
Identification
- CASE Ingredients Functions
- Oligomer
Product families
Applications
- Electronics Coatings
- Potting Compounds
- Electronics Coatings
Product Families
- Oligomers
Other characteristics
- Brand
- Bomar Oligomers
- End Uses
- Radiation Curable Adhesive
- Markets
- Electrical & Electronics
- Paints & Coatings
- Technology
- CASE Ingredients
- HIGHLIGHTS
- Excellent Hydrophobic Properties
- Low Temperature Flexibility
- Acid/Base Resistance
- Excellent Dielectric Properties
- Curable with Radiation
- Exhibits Hydrolytic Stability
- Improves Adhesion
- Gloss Finish
- General Information
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.
- Typical Formulations
Cold Rolled Steel; X Recommended XX Highly Recommended XXX Strongly Recommended; * Brookfield – CAP 2000+ @ 25°C.; Tensile Strength, psi**; Elastic Modulus, ksi*; Durometer Hardness; Water Absorption, 96 (24 hrs); MEK Double Rubs (#); ** Per ASTM D882 – Not Tested || Incompatible X Unable to Measure
- Adhesive & Sealant Type
- Radiation Curable Adhesive
Technical data
Table 1 of 1
5 rows| Characteristic | Value | Unit |
|---|---|---|
| Viscosity (50 °C) | 65,000 | cP |
| Pt-Co Color (APHA) | 50 | — |
| Pt-Co Color | 50 | APHA |
| Refractive Index (25°C) | 1.508 | — |
| Density (25°C) | 0.95 | g/cm3 |
