gmsminerepaircom G M S M i n e R e p a i r M a i n t e n a n c e F A B R I C A TI O N D I S TR I B U TI O N V E NTI L A TI O N 3013348186 55 Omega Block products are composed of nontoxic incombustible materials whose air permeability and relative freresistance characteristics are unequaled Fully approved for constructing underground ventilation devices by MSHA Omega Blocks reduce labor because they cover the area of 3 normal concrete blocks Omega Blocks are easy to use because they can be accurately cut to size with a handsaw A typical brattice stopping is dry stacked using alternating courses and then sealed with an approved sealant about the roof rib and seams Omega Block Product Specifcations Approved for use with any MSHA approved underground mine sealant Impermeable to air and will not support combustion Fire Resistant Meets temperature transmission requirements of UBC Standard No71 and passed the 2 hour fre test for ASTM E119 Test Passed the ASTM E72 Test R value 215 for 3 of thickness Product Dimensions Omega 443 4 ft x 4 ft x 32 inches with molded forklift tine pockets 6 Omega 384 6 x 16 x 24 Weighing 35 lbs each 8 Omega 384 8 x 16 x 24 Weighing 45 lbs each PREMIERE DISTRIBUTOR