The key physical property of polycarbonate is resistance to impact. It is virtually unbreakable. Decralite recommends a maximum operational temperature up to 90° Celsius to achieve optimum life. Polycarbonate should be used in areas where vandal resistance is a concern. The optical clarity of polycarbonate is degraded by ultraviolet radiation. UvaLex® coating and/or UV guarded lamps are recommended. Polycarbonate globes are available in either clear or white.
Decralite recommends a maximum operational temperature up to 80° Celsius to achieve optimum life.
The Moon Glow designation indicates a customized pigment has been added to the PMMA resin. The appearance of Moon Glow products will be slightly translucent. Using products with a Moon Glow pigment can help to minimize glare and produce a desirable cosmetic effect. Decralite recommends a maximum operational temperature up to 80° Celsius to achieve optimum life.
All materials are subject to accelerated degradation when improperly applied. Exceeding recommended temperature limits, exposing to concentrated UV, chemicals or physical damage will result in decreased life and performance.
Acrylic resins have good resistance to a variety of common cleaners and application environments. The testing to date indicates that acrylic reflectors and refractors should not be exposed to chlorinated hydrocarbons, aromatic hydrocarbons, ketones, ethers and esters. Additional chemicals that have been tested and found to degrade acrylic are synthetic cutting oils and fluids that may contain either potassium hydroxide or triethanolamine. Also the following chemicals were tested and found to chemically attack acrylic. DOP (dioctyphthalate) – a plasticizer which is sometimes used in the manufacture of PVC and vinyl wire jackets. 2-butoxyethanol (ether derivative) – a chemical that is found in some household spray cleaners. Ethoxylated surfactants a fluid which is sometimes used in capacitors for cooling.
Ethoxylated-nonyl-phenols a chemical found in some machining coolant fluids. These chemicals are often used in industrial machining operations and will degrade acrylic over time and cause cracking and premature failure. Acrylic refractors and reflectors should not be used in areas where these fluids are used and where these fluids become mists or airborne vapors.
[Exposure of acrylic reflectors to any of the foregoing chemicals voids all warranties.]
Polyethylene Globes are generally the least expensive of all the material types. Available only in white. Suitable for incandescent light sources due primarily to a lower maximum operating temperature.
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