Polycarbonate is the other material commonly used in domed skylights. Polycarbonate is used in applications where impact resistance is a requirement. It is the material used in our Miami-Dade Approved Hurricane Impact Skylights. It is even popular in areas that may be prone to Hail Damage. Polycarbonate can be formed just as easily as acrylic.

Solexx greenhouses are made with polyethylene. Polyethylene is much more flexible and is easy to cut to any size. Polycarbonate panels tend to be thicker, but have about the same insulation factor as polyethylene. Both materials diffuse light, but polycarbonate diffuses less (because it is more transparent), making the greenhouses much hotter in the summer. Polyethylene is very easy to clean and will not scratch like polycarbonate. See similar questions...

Acrylic is sold under the trade name Plexiglass? and polycarbonate is sold under the trade name Tuffak? or Makrolon?. The plastics manufacturer we work says that acrylic is more weatherable than polycarbonate, is slightly more scratch resistant, and is more economical than polycarbonate. Polycarbonate has greater impact resistance than acrylic, and is more expensive. See similar questions...

Yes, prism can be prescribed for all materials, including polycarbonate. The Rx prism range for polycarbonate DEFINITY™ Lenses is up to 6.00 D. See similar questions...

We use either 25mm or 35mm polycarbonate on our conservatory roofs. Although 25mm thick polycarbonate sheeting is still the industry standard in the UK, more and more conservatories are moving on to the 35mm polycarbonate. See similar questions...

We use the following colours:- Bronze, Clear, Opal, Bronze/Opal, Heatguard ( also known as heatshield or silver/opal), Blue Opal, Green Opal and Yellow Opal. The most common polycarbonate colour we use is the Opal polycarbonate. See similar questions...

Both the polycarbonate composite matrix helmets and the fiberglass/Kevlar helmets comply with the exact same standards-DOT and Snell. These are "pass-fail" standards and do not reflect any continuum or graduated level of compliance. The VX-14 and VX-17 dirt helmets also comply with both standards. No one can tell (or guarantee) you one will be any safer than another in an accident. See similar questions...

We do not use plastic or polycarbonate lenses from results of extensive long term testing. They do offer great strength but will cloud overtime in salt water and can be very easily scratched diminishing the light output. It is impossible to polish the surface back to new, unless a flame is applied which should only be done by a plastics specialist. It is no longer a simple case of power. It comes down to design, technology and size. See similar questions...

The "standard plastic" lenses are often called "Hard Resin", "CR-39 plastic", or just quot;plastic" lenses. CR-39® is actually a PPG Industries registered trade name for a DADC (diallyl diglycol carbonate) polymer that was introduced in 1941. The "CR" stands for Columbia Resin and CR-39 was the 39th batch or formula made by Columbia Laboratories in Ohio. See similar questions...

Polycarbonate lenses are more impact resistant and lighter than regular plastic material. It is the preferred lens for minors. A scratch resistant lens does make a lens scratch resistant. But, that does not make it scratch proof. However, if you do purchase this coating, we warranty the lenses with a one time, one year replacement. See similar questions...

We do not recommend this nor do we install film on it. However below is Llumar ? documentation regarding this question we are asked often which may be beneficial to you in answering the question you have been searching for: The answer is somewhat complex. Generally speaking, the simple and flat answer (as of January 2000) is "NO," though research is always on-going and new specialty products more compatible with plastic sheeting are always a future possibility. See similar questions...

CR-39 refers to the type of plastic that is used to make prescription lenses. This is optical plastic and provides very little distortion .It is more lightweight and thinner than glass making it comfortable to wear. It is more impact resistant than glass, but may still break and shatter upon impact. Therefore, it is not recommended for active sports and motorcycling. It is more scratch resistant than polycarbonate, but will scratch if not properly taken care of. See similar questions...

Polycarbonate outgases causing bubbles in your vinyl. To prevent this remove the protecting film as soon as possible and allow the polycarbonate to outgas naturally, heat will speed up the process. See similar questions...

All Florida Building Code approved hurricane protection provides good protection and all of the Florida Building Code approved hurricane protection must pass the tests required by the State of Florida. ArmorPanel? passed the exact same tests as steel, aluminum and polycarbonate panels. That said, it is subjective to say that one protection is 'better' than the other but we believe that ArmorPanel? provides excellent protection and a host of features not offered with 'hard shell' solutions. See similar questions...

Glass: Glass offers the best optical clarity, meaning that there is virtually no distortion in glass lenses. This is why it is the material of choice in manufacturers such as Ray-Ban, Revo, Vuarnet, and Serengeti. However, glass is the least impact resistant of all of the material, and may shatter upon impact. Shattering means that the lens will split into small pieces which can easily enter the eye and cause permanent eye injuries or even blindness. See similar questions...

Polycarbonate lens material is so tough that you can hit it with a hammer and it won't shatter. Ordinary polarizing lenses are made out of plastic (CR-39), and are not shatter resistant. In addition, polycarbonate lenses absorb harmful UV radiations. See similar questions...