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.

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...

Different raw materials yield different grades of paint. Kirker manufactures three grades of paint, suitable for different automotive refinish applications. See the chart below for specific differences in the performance expectations of each Acrylic Urethane (ULTRA-GLO) features the most modern coatings technology, which gives it excellent durability, gloss retention and color holdout. ACRYL-GLO Acrylic Enamel is a traditional coating, most often used on passenger cars and commercial vehicles. 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 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. See similar questions...

Some aquarium manufactures use Acrylic (plasic) tops instead of glass. These tops can easily warp, scratch, nick, fog, blush, and craze. We use only tempered glass tops (sometimes called "safety glass"). If they break they usually do not leave a sharp edge (just like car windows). Tempered glass is more expensive than normal glass. CustomAquarium.com does not recommend plastic tops or glass tops that are not tempered. See similar questions...

Both glass and acrylic are used to glaze (protect) your framed prints. Glass is heavier and more scratch resistant than acrylic and is only available for framed pieces up to 20" x 24". Glass can be micro-etched to provide anti-glare properties and coated to provide anti-reflective properties and UV protection which keeps your art from fading. Acrylic is much lighter than glass and is shatter resistant. Standard acrylic also has greater UV blocking capabilities than standard glass. 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...

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...

Acrylic is the most commonly used material in traditional domed curb mount and self-flashing skylights. It comes in a variety of tints and is an extremely reliable material for use in a wide range of shapes and sizes. It can be formed into domes, circulars, pyramids, ridges, etc... See similar questions...

All of our display cases are glass and mirror. While we have carried an acrylic line of display cases in the past, it has been discontinued. 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...

Because no technology has been found yet that resolves the plastic "aging" problem that causes dull-looking in acrylic tank after certain years of use, and because "easy-to-get scratched" on acrylic tanks is still a major disadvantage, our answer is No, despite the fact that making curvy acrylic tank would require a lot less investment in equipment, labor, and technology than making curvy glass tank. See similar questions...