Clear Polycarbonate Dome Covers

Regular window glass looks but actually impact resistant plastic. Can be used for security glass – even a hammer won’t break it. Looks the same as window glass but provides physical security and is much lighter weight. Single layer of sturdy clear UV stable plastic glass.

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Tests Units ASTM Test General Purpose Polycarbonate
Tensile strength @ break @ 73°F psi D638 7,310 – 10,700
Flexural modulus @ 73°F psi D790 250,000 – 417,000
Izod impact (notched) ft-lbs/in of notch D256 1.1 – 18
Deflection Temperature Under Load @ 264 psi Unannealed ft-lbs/in of notch D658 249 – 282
Coefficient of linear thermal expansion (CLTE) (in/in F) D696 3.2E-5 to 3.9E-5
Compressive strength psi D695
Coefficient of friction D1894 0.060 – 0.39
Taber Abrasion Resistance mg D1044 9.90 – 10.8
Water absorption – 24 hours – 1/8″ thick 0.036 – 0.11% D570 0.15 – 0.21
Deflection Temperature Under Load @ 264 psi °F D648 277 – 289
Compressive strength psi D695 9,000 – 12,500

* Technical Data is provided courtesy of UL Prospector ( and IAPD (

Data is to be considered representative and is provided for guidance only. All product performance must be verified by the user under actual application conditions.


Polycarbonate, also referred to as PC, is a tough, impact-resistant, virtually unbreakable material used in wide variety of applications. It is an amorphous thermoplastic material, with a continuous use temperature range of up to 265° F (129° C).


Polycarbonate is half the weight & 200 times stronger than glass and 30 times stronger than acrylic.

Polycarbonate has superior thermal properties to reduce sound transmittance, especially in minimizing heat loss.

Architectural Applications:

There are many applications where the benefits of polycarbonate sheet can be utilized to enhance architectural designs. These features, along with its high impact strength, make polycarbonate an excellent choice for security as ballistic applications where enhanced building design and protection of assets is a primary concern.