Master Bond Polymer System UV21 is an easy to use one component UV curable urethane elastomer compound. It has been used for bonding, sealing, casting and formed in place high performance seals and gaskets. The UV21 is a solvent free system and has an excellent six month shelf life at ambient temperatures. Curing can be accomplished with UV light emitted from 320-365 nanometers. Radiation dosages of 20-40 mw/cm² can effect rapid cures; seconds for thinner sections, slightly longer for thicker ones. UV21 offers outstanding physical strength properties including elongation of over 260% and a tensile strength of over 500psi. While the UV21 has the flexibility of RTV silicones if offers many advantages including faster cure time, improved chemical resistance, and no emission of corrosive elements while curing. The temperature range of UV21 is an outstanding -65°F to 250°F and its electrical insulation properties are also superb.
| Master Bond, Inc. | |
|---|---|
| Product Category | Industrial Sealants |
| Product Number | UV21 |
| Product Name | One Component, Highly Flexible UV Curable Urethane |
| Cure / Technology | Thermoset; UV or Radiation Cured; Contact or Pressure Sensitive Adhesives; Single Component |
| Type / Form | Liquid |
| Substrate Compatibility | Ceramic, Glass; Composites; Metal; Plastic; Porous Surfaces; Rubber or Elastomer; Dissimilar Substrates |
| Chemical System | Elastomeric |
| Features | High Dielectric; Flexible; Leveling Filling; Non-corrosive; Gap Filler, Foam in Place Gasket; Thermal Insulation |
