Technical Specifications
Product Name   
HG-GRID™ 
Manufacturer’s Name   
Acoustic Ceiling Products (ACP) 
March 14, 2008  Page 2   
PRODUCT DESCRIPTION 
Reinforced Plastics and Electrical Insulating Materials. 
▪  ASTM D792 - Standard Test Methods for Density and Specific Gravity (Relative 
Density) of Plastics by Displacement. 
▪  ASTM E84 - Standard Test Method for Surface Burning Characteristics of Building 
Materials. 
▪  ASTM E580 - Practice for Application of Ceiling Suspension Systems for Acoustical 
Tile and Lay-in Panels in Areas Requiring Seismic Restraint. 
▪  CISCA (Ceilings & Interior Systems Contractors Association) Ceiling System Handbook 
and Acoustic Ceilings Use and Practice. 
▪  ISO 4611 - Plastics - Determination of the Effects of Exposure to Damp Heat, Water 
Spray and Salt Mist. 
▪  ISO 12944-2 - Paints and Varnishes – Corrosion Protection of Steel Structures by 
Protective Paint Systems, Part Two: Classification of Environments. 
▪  UL - Fire Resistance Directory. 
▪  USFDA (United States Food and Drug Administration) 
◦  QUALITY STATEMENT, TESTS, CERTIFICATIONS, AND APPROVALS 
▪  Fire Resistance to UL Design #94. 
▪  Fire Performance:  Class A. 
▫  Standard finish: (flame spread 10, smoke developed 140) to ASTM E84. 
▫  Foil-faced finishes: Flame spread 15, smoke developed 250, to ASTM E84. 
▪  USFDA approval of the resin used in the HG-GRID system for food processing 
applications. 
▪  Durometer Hardness: 82 to ASTM D2240. 
▪  Tensile Strength: 44.1 MPa (6400 psi); Tensile Modulus of 2,620 MPa (380,000 psi) to 
ASTM D638. 
▪  Flexural Strength: 77.9 Mpa (11,300 psi); Flexural Modulus of 2,827 Mpa (410,000 psi) 
to ASTM D790. 
▪  Heat Deflection Temperature:  73 degree Celsius (163 degree Fahrenheit) to ASTM 
D648. 
▪  Coefficient of Linear Expansion: 3.3 x 10-5 in/in/degree Fahrenheit to ASTM D696. 
◦  PACKAGING, HANDLING, PROTECTION, AND DELIVERY INSTRUCTIONS 
▪  Deliver materials in original HG-GRID cartons and take care to handle and protect 
against damage such as moisture, breakage, dirt, surface soiling, etc. 
▪  Allow all ceiling components to acclimate to room temperatures before installation. 






