5GP Standard Density Gypsum Based Fireproofing

Specific values listed from laboratory testing of samples prepared and tested in accordance with the procedure designated.  
Results on field applied material may vary.

Physical Characteristics of Type 5GPTM 
Property & Test Method Suggested Industry Standard * Tested Values**
Density, ASTM E-605 15 pcf (240 kg/m3) min. avg. 15 pcf (240 kg/m3) min. avg.
Combustibility, ASTM E-136 Non-combustible Passed, non-combustible
Compressive Strength, ASTM E-761 1,200 lb/ft2 (57 kPa) 3,700 lb/ft2 (>177 kPa)
Cohesion/Adhesion, ASTM E-736 200 lb/ft2 (9.6 kPa)* 400 lb/ft2 (>19.1 kPa)
Effect of Impact, ASTM E-760 No cracking or delamination Passed, no spalling, cracking or delamination
Effect of Deflection, ASTM E-759 No Spalling or delamination Passed, no spalling or delamination
Corrosion of Steel, ASTM E-937 No contribution to corrosion Passed, no contribution to corrosion
Erosion by Air, ASTM E-859 Max. 0.025 g/ft2 (0.26 g/m2)  0.009 g/ft2 total, none after 6 hours
Surface Burning, ASTM E-84 Flame Spread 25, Smoke 200 Flame Spread 0, Smoke 0
DOD Classification, ASTM E-1042 For Classification Purposes Only Type 1, NRC 50, class (a), Category A
Fire Resistance, ASTM E-119 Proven in Fire Resistance Tests Passed, see UL Designs
Fungi Resistance, ASTM G-21 No growth when fungicide used Passed, no growth with optional fungicide

* Recommended average values. Allowable individual values are typically 75 percent of average

** Values are from laboratory tests under controlled conditions and not intended to replace industry standards for specification purposes.

PDF versions available here

Southwest Fireproofing Products Company, Albuquerque, NM 87107 Phone: (505) 345-1633

©2016 Southwest Fireproofing Products Co. Southwest Fireproofing, Type 5GP, Type 5EF, Type 5MD, Type 7GP, Type 7HD, Type 1XR, Type DK, Type HC and Type 7TB are trademarks of Southwest Fireproofing Products Co.


Send mail to CompanyWebmaster with questions or comments about this website. Last modified: 5/1/2016