A New Generation of Epoxy Vinyl Ester Resins
DERAKANE MOMENTUM 411-350 epoxy vinyl ester resin is based on bisphenol-A epoxy resin and provides resistance to a wide range of acids, alkalis, bleaches, and organic compounds for use in many chemical processing industry applications. DERAKANE MOMENTUM resins are a new generation of resins that can be used to improve fabrication efficiency and product quality. Their lighter color makes defects easier to see and correct while the resin is still workable. The resin’s improved reactivity properties often permit an increase in the lay -up thickness per session. The longer shelf life provides additional flexibility to fabricators in storage and handling.
Typical Liquid Resin Properties
| Property(1) | Value |
|---|---|
| Density, 25°C/77°F | 1.08 g/mL |
| Dynamic Viscosity, 25°C/77°F | 370 mPa×s |
| Kinematic Viscosity | 350 cSt |
| Styrene Content | 45% |
| Shelf Life(2), Dark, 25°C/77°F | 12 months |
- Typical property values only, not to be construed as specifications.
- Unopened drum with no additives, promoters, accelerators, etc. added. Shelf life specified from date of manufacture.
Applications and Fabrication Techniques
- FRP storage tanks, vessels, ducts, and on-site maintenance projects, particularly in chemical processing and pulp and paper operations.
- The resin is designed for ease of fabrication using hand lay -up, spray -up, filament winding, compression molding and resin transfer molding techniques, pultrusion and molded grating applications.
- An alternate viscosity, optimized for some vacuum infusion processes, is available as DERAKANE MOMENTUM™ 411-100 resin.
Benefits
- Provides resistance to wide range of acids, alkalis, bleaches, and solvents. This resin holds up in corrosive environments, postponing the need for equipment replacement.
- Tolerates heavy design loads without causing failure due to resin damage. This facilitates working with large weight -bearing equipment with confidence.
- Superior elongation and toughness provides FRP equipment with better impact resistance and less cracking due to cyclic temperature, pressure fluctuations, and mechanical shocks providing a safety factor against damage
during process upsets or during shipping installation. - When properly formulated and cured, complies with FDA regulation 21 CFR 177.2420, covering materials intended for repeated use in contact with food.
Gel Time Formulations
The following table provides typical gel times for MEKP. “Starting point” formulations for MEKP, non-foaming MEKP alternatives, and BPO peroxides are available in separate product bulletins. These and other information are available at www.derakane.com.
MEKP Gel Time Table
Typical Gel Times(3) Using NOROX(4) MEKP-925H(5)
and Cobalt Naphthenate-6%(6)
Safety and Handling Consideration
This resin contains ingredients which could be harmful if mishandled. Contact with skin and eyes should be avoided and necessary protective equipment and clothing should be worn.
Ashland maintains Material Safety Data Sheets on all of its products. Material Safety Data Sheets contain health and safety information for your development of appropriate product handling procedures to protect your employees and customers.
Our Material Safety Data Sheets should be read and understood by all of your supervisory personnel and employees before using Ashland’s products in your facilities.
Recommended Storage:
Drums - Store at temperatures below 27°C/80°F. Storage life decreases with increasing storage temperature. Avoid exposure to heat sources such as direct sunlight or steam pipes. To avoid contamination of product with water, do not store outdoors. Keep sealed to prevent moisture pick-up and monomer loss. Rotate stock.
Bulk - See Ashland’s Bulk Storage and Handling Manual for Polyesters and Vinyl Esters. A copy of this may be obtained from Composite Polymers at 1.614.790.3333.
