Glass block is a sound and heat insulation, waterproof, good decorative new generation of efficient environmental friendly building material of decorative wall. 

Features: 
Environmental Friendliness
Sound insulating
Fire-resistant
Frost-resistant
Heat-shielding
High compression resistance and shock resistance


**Specifications: 
Metric series, Imperial series, In-colored series, 
Acid etched series, Artistic series, Corner series
*Designs: 
Sea wave, Cloudy, Lattice, Parallel, Crystal Parallel, Diamond, Water Bubble, Direct Clear, Double Star, Cock-Tail, Jewel, New Moon, Ice-Flower, Coral, Meteor, etc. 
*Normal Size: 
190 x190x80mm, 190x190 x95mm, 145 x145x80mm, 145 x145 x95mm
*Color: Clear, blue, green, bronze, grey, pink, etc. 


The following information is based on a typical 190x190x80mm clear glass block. 

Glass
Composition: Silica-sand, soda ash, calcium. 
Fusion is obtained at approximately 1550OC. 

Light Transmission
Clear 190x190x80 = 80%
Coloured 190x190x80 = 60%

Thermal Transmission
Average value = 2.9 W/m² ° C: Single Wall. 

Impact Strength
12.0 N/mm - Tested using 50kg sand bag and steel ball bearings. 

Sound Transmissions
Rw = 42dB depending on frequency.