Technical Information
Los Angeles City Building Code - ESR 1408
Pro-Twist™ Cement and Fiber Cement
Board Screw Salt Spray Test Report
Cement Board Screw 1000 Hours
NACL Concentration 5% P.H. 6.5 – 7.2
Compressed Air 0.7 – 1.8 kg f/cm sq. Specific Gravity 1.0268 – 1.0413
Pressured Tank Temp. 45º - 48º Fog Volume M 1/80cm sq./hr
Cabinet Temp. 34º - 36º Test Method According to ANSI/ASTM and B117-73
Description Quantity Test Results
8 x 1-5/8” 30 Sample Pieces No Deterioration After 1000 Hours
Fiber Cement Board Screw 1000 Hours
NACL Concentration 5% P.H. 6.5 – 7.2
Compressed Air 0.7 – 1.8 kg f/cm sq. Specific Gravity 1.0268 – 1.0413
Pressured Tank Temp. 45º - 48º Fog Volume M 1/80cm sq./hr
Cabinet Temp. 34º - 36º Test Method According to ANSI/ASTM and B117-73
Description Quantity Test Results
8 x 1-5/4” 30 Sample Pieces No Deterioration After 1000 Hours
Copyright 2002, PrimeSource Building Products Inc.
©2005 PrimeSource Building Products, Inc.