Harcryl® 1228 M UV is a specialized acrylic monomer designed for UV curable coatings. Here's a summary of its features and properties:
Composition: It is a free acid phosphate ester of 2-HEMA (hydroxyethylmethacrylate), predominantly composed of the mono-alkyl phosphate ester. This composition allows for easy incorporation into various polymer systems, with a higher hydrophilicity compared to Harcryl® 1228.
Inhibition: Inhibited with 100ppm of added MeHQ.
Functionality: The phosphate functional group promotes adhesion to surfaces, reducing the need for pretreatments. This enhances adhesion, saves time, and reduces coating layers. Improved corrosion resistance due to the phosphate functional group reduces the need for additional inhibitors. The acrylic backbone allows Harcryl® 1228 M UV to be easily incorporated into many coating systems, including UV and radiation curable coatings.
Benefits:
- Adhesion Promotion: Reduces the need for pretreatments, saving time and reducing coating layers.
- Corrosion Resistance: Enhances corrosion resistance, reducing the need for additional inhibitors.
- UV Curable: Designed specifically for UV curable coatings.
Usage: Should not be used as a straight additive. As a monomer, it should be fed separately or in the monomer pre-mix. It has a shelf life of 1 year from the manufacturing date.
Handling & Storage: Should be stored in stainless steel, lined, or plastic vessels. Listed as a DOT corrosive.
Features:
- Suitable for concrete, metals (aluminum, galvanized steel, iron-phosphated steel, zinc-phosphated steel, rolled steel, and stainless steel), and polymers (acrylic, styrene/acrylic, VEOVA/acrylic, and polyurethanes).
- Contains a reactive methacrylic group and a phosphate active group.
- Promotes adhesion and provides corrosion resistance.
Typical Properties:
- Appearance: Yellow Viscous Liquid
- Activity: 99% min
- Moisture: 1% Max
- Acid #1 (mgKOH/gm): 5.5 pH 312
- Acid #2 (mgKOH/gm): 9.5 pH 580-590
- pH (1% aqueous): 1.5-2.5
- Flash Point: >93°C
- Specific Gravity @ 25°C: 1.250-1.350