Eastman: New copolyester for outdoor architectural glazing applications

Eastman Specialty Plastics has recently introduced Kelvx® copolyester resin for use in outdoor architectural glazing applications. Kelvx resin is a versatile material that provides long-term durability and temperature resistance for outdoor applications such as signs and architectural glazing products. Sheet made with Kelvx resin expands design options, while providing manufacturing flexibility, chemical and impact resistance, ease of fabrication, and superior thermoforming characteristics-all of which can yield product differentiation, cost savings, and total satisfaction for both the converter and the end-use customer. Kelvx copolyester resin is a versatile material that is easily fabricated, and provided the material is protected with a co extruded UV layer, it is resistant to UV-light, extreme temperatures and high impact. It is also durable, making it ideal for outdoor applications such as signs and architectural glazing products.

Used as a sheet material, Kelvx is easy to work with, especially in terms of cutting, and performs well in relatively harsh environmental conditions. The material does not become too hard in structure, because fabrication wise it is similar to the well-established Spectar® product. This means it is easy to achieve accurate cutting, without damaging the cutting mill in the process.

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The thermoforming cycle time of Kelvx resin is 15 to 25 % faster than other materials, such as impact-modified acrylic resin or polycarbonate. This is because the desired three-dimensional structure can be created at much lower temperatures.

Eastman Chemical Company, Capelle a/d IJssel, The Netherlands