FIRM-FILL® Gypsum Concrete | Floor Underlayment

The original FIRM-FILL® Gypsum Concrete floor underlayment is designed for use in multi-family housing to satisfy acoustical ratings and fire codes. With excellent STC and IIC ratings as well as over 105 UL listings, FIRM-FILL® Gypsum Concrete floor underlayment is an excellent choice for jobs needing compressive strengths up to 2200 psi.

Recommended For

Multi-Family Application / Market: Apartments, condominiums, hotels, motels, dorms, commercial buildings and commercial renovation projects.

Features & Benefits

Flattens subfloors
Provides excellent STC (sound transmission) and IIC (impact isolation) ratings
Possesses over 105 UL listings
Lightweight and crack resistant
Easily installed; over 25,000 square feet can be installed per day
Quick drying; can be walked on in 90 minutes
Expert application; installed only by trained, Licensed Applicators
Approvals from ICC-ES and HUD
Meets ASTM F2419, Standard Practice for the Installation of Thick Poured Gypsum Concrete Underlayments and the Preparation of the Surface to Receive Resilient Flooring

规格

Technical Data	Properties	ASTM
Weight	7 lbs/ft² at 3/4" (19 mm)	C472M
Thickness	3/4" (19mm) (minimum over wood) to 3 1/2" (89mm)
Compressive Strength	1200 - 2250 psi	C472M
Thermal Performance	K-value of 2.45 Btu/ft²·h·°F; R-value of 0.41 ft²·h·°F/Btu	C177
Fire Hazard Classification	Flamespread index 0; Fuel Contribution 0; Smoke Density 0	E84, E136
Patty Size	8" (203mm) plus or minus 1/2" (13mm) in diameter
Sand	1/8" (3mm) or less washed plaster or masonry sand	E11
UL listings	Listed in over 100 1, 2, 3 and 4 hour floor/ceiling assemblies

技术规格

唯一参考firm-fill-gypsum-concrete
产品系列Gypsum Cement Underlayment
产品组Gypsum Concrete Floor Underlayment
类型对象（单个对象）
发布日期2026-03-02
版本号1

链接

产品网址https://hackerindustries.com/firm-fill-gypsum-concrete.shtml
安装说明https://hackerindustries.com/pdfs/Firm-Fill-Post-Pour-Instructions.pdf
产品认证https://hackerindustries.com/3-part-specs/FF_Gypsum_Concrete_-_Blue_Bag.pdf

相关

设计国家/地区United States
制造国家/地区United States

分类

BIMobject 类别地板 - 支撑物
CSI MasterFormat 2014 代码03 54 13
CSI MasterFormat 2014 标题Gypsum Cement Underlayment
OmniClass 编号23-15 17 11 13
OmniClass 标题Floor Underlayments

发售地区

North America
Anguilla
Antigua and Barbuda
Aruba
Barbados
Belize
Bermuda
British Virgin Islands
Canada
Caribbean Netherlands
Cayman Islands
Collectivity of Saint Martin
Costa Rica
Cuba
Curaçao
Dominica
Dominican Republic
El Salvador
Greenland
Grenada
Guadeloupe
Guatemala
Haiti
Honduras
Jamaica
Martinique
Mexico
Montserrat
Nicaragua
Panama
Puerto Rico
Saint Kitts and Nevis
Saint Lucia
Saint Pierre and Miquelon
Saint Vincent and the Grenadines
Saint-Barthélemy
Sint Maarten
The Bahamas
Trinidad and Tobago
Turks and Caicos Islands
U.S. Virgin Islands
United States