Bomar Oligomers® BR-742M
- CASE Ingredients Features
- Excellent AdhesionImproved FlexibilityImproved HardnessImproves AdhesionLow Heat GenerationLow Skin SensitivityLow YellowingSolvent Resistance
- Chemical Family
- Urethane Acrylate/Isocyanate
BR-742M is a medium molecular weight, difunctional, aliphatic polyester urethane methacrylate offering excellent adhesion, flexibility, and hardness balance. BR-742M offers an excellent balance of gloss, low heat generation, low color, and low MeHQ for nail coating applications. It canalso be effectively formulated for adhesion to steel, aluminum, and glass. Due to its low solvent resistance, it can be formulated into solvent strippable temporary coatings. This material has low skin sensitivity for dental and cosmetic applications.
Identification
- CASE Ingredients Functions
- Oligomer
Product families
Applications
- Metal Coatings
- Glass Coatings
Product Families
- Oligomers
Other characteristics
- Brand
- Bomar Oligomers
- Markets
- Paints & Coatings
- Technology
- CASE Ingredients
- HIGHLIGHTS
- Improves adhesion
- Balance of hardness and flexibility
- Low heat generation during cure
- Low MeHQ
- Low skin irritation
- Non-yellowing
- Glossy finish
- Safety 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.
- Typical Formulations
BR-742M; Irgacure® 184; 17.000; 2.900; 3.600; 4.800; 3.700; 4.400; 90; 200; 240; 140; 150; 97D; 88D; 78D; 79D; Water Absorption, %(24 hrs); X - Recommended, XX - Highly Recommended, XXX - Strongly Recommended
- Recommended Applications
- Nail gel polish
- Coatings for glass
- Coatings for metals
- Compatible Substrates and Surfaces
- Aluminum
- Glass
- Metal
- Steel
Technical data
Table 1 of 4
4 rows| Characteristic | Value | Unit |
|---|---|---|
| Viscosity (60 °C) | 28,000 | cP |
| Pt-Co Color | 15 | APHA |
| Refractive Index (25°C) | 1.484 | — |
| Density (25°C) | 1.110 | g/cm3 |
Типичные рецептуры
8 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| BR-742M | 70 | 50 | 50 |
| IBOA | 30 | 50 | — |
| TMPTA | — | — | 50 |
| TPGDA | — | — | — |
| HDDA | — | — | — |
| HEMA | — | — | — |
| Irgacure® 184 | 2 | 2 | 2 |
| Viscosity, 25°C (CAP2000+) | 17.000 | 1.200 | 8.600 |
Типичные рецептуры
7 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Tensile Strength, (psi, ASTM D882) | 2.900 | 3.600 | 4.800 |
| Elongation (%, ASTM D882) | 70 | 7.6 | 2.3 |
| Elastic Modulus (ksi, ASTM D882) | 90 | 200 | 240 |
| Durometer Hardness | 97D | 80D | 88D |
| Water Absorption, %(24 hrs) | 0.27 | 0.20 | 0.40 |
| MEK Double Rubs (#) | 66 | 12 | >200 |
| Tg(DMA) = 61°C; Peak tan delta; cured with 2 phr of Irgacure® 184 | — | — | — |
Типичные рецептуры
10 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| ABS | XX | XX | XXX |
| Aluminum | — | — | — |
| Cold Rolled Steel | X | X | — |
| Glass | — | — | — |
| HDPE | — | — | — |
| PET | X | XX | XXX |
| PMMA | — | — | — |
| Polycarbonate | X | X | — |
| PVC | XXX | XXX | XXX |
| Stainless Steel | — | — | — |
