Greenhouse Polycarbonate Sheets
Properties and Importance of Lexan Polycarbonate Sheets
SABIC’s LEXAN? Polycarbonate Sheet is today’s most practical, most cost effective sign material. LEXAN? Polycarbonate Sheet is an amorphous resin which offers a unique combination of mechanical, optical, thermal, and electrical properties offered separately by metals, glass and other plastics. Virtually unbreakable, LEXAN? sheet products provide an unmatched combination of visual appeal, durability and excellent light transmission. Its proven record of durability translates into real long terms value. LEXAN? sheet is one of the toughest sign materials available. It stands up to every thing from stones to hammers, from rough handling during transit to deliberate vandalism, without shattering or breaking. And, unlike other plastics, LEXAN?, sheet retains its outstanding impact resistance during hot summers and cold winters. It is easy to maintain, last longer, stay transparent and remain clear to read.
Lexan polycarbonate sheets, simply put, really are a plastic. They are lightweight (1/6th the weight of glass), virtually unbreakable (impact strength 200 times greater than glass), have excellent weather resistance (due to the UV protection on one or two sides of the sheets), have excellent insulation (due to the multiple layers with channels in between) and are flexible and simple to install (see specific information on each thickness). You can purchase it in solid sheets, corrugated, or multiwall. The typical configurations used for Greenhouse glazing are corrugated and multiwall. The reason the solid sheets are not recommended is due to the fact that they are not widely available with a UV protection on one side. The UV protection will keep the sheets from yellowing or even getting brittle. Some people will mistakenly believe this impacts the light transmission of the sheets. It has nothing to do with that. The sheets with Ultra violet protection on one side are typically guaranteed for 10 years against yellowing as well as hail damage. This will change from manufacturer to manufacturer. There are also sheets available with Ultra violet protection on both sides. These are generally used for vertical applications such as fencing where both sides of the sheet are exposed to the sun. While this may be used for a greenhouse, it’s typically more expensive and unneeded.
As LEXAN? sheet is virtually unbreakable, there is a considerable saving on material and production costs compared to other traditional sign materials. One can have maximum design freedom, and solid assurance that your signs will project the corporate image you want, for many many years.
Physical Properties of Polycarbonate Sheet
Some Unmatched properties of LEXAN? sheets
Virtually unbreakable
Superior flammability characteristics
Self extinguishable
Consistent transparency
Design flexibility
Tailored lengths and widths for seamless signages
Light weight
Excellent UV stability
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