Hacker Industries

FIRM-FILL® 3310 | Floor Underlayment

An innovative product that elevates gypsum concretes to an unprecedented level of unyielding performance. FIRM-FILL® 3310 floor underlayment's fast-setting surface rapidly eliminates water allowing for accelerated drying time and unparalleled levels of strength and finish over wood and concrete subfloors in new construction and renovation projects.

Recommended For

Multi-Family Application / Market: Multi-family, custom homes, commercial buildings, hotels & motels, & renovation projects.

Features & Benefits

Premium strength, smooth surface over wood and concrete subfloors
Eliminates water rapidly for accelerated drying time
FIRM-FILL® 3310 floor underlayment can be poured before or after drywall
Exceptional compressive strengths from 2000 to 3300 psi
Delivers fire resistance and improved sound performance
FIRM-FILL® 3310 floor underlayment creates a smooth, crack-resistant surface
Expert application; installed only by trained, Licensed Applicators
Meets ASTM F2419, Standard Practice for the Installation of Thick Poured Gypsum Concrete Underlayments and the Preparation of the Surface to Receive Resilient Flooring

Specificatie

Technical Data	Properties	ASTM
Weight	7.6 lbs/ft² at 3/4" (19 mm)	C472M
Thickness	3/4" (19mm) (minimum over wood) to 3 1/2" (89mm); 1/2" (13mm) (minimum over concrete)
Compressive Strength	2000 - 3300 psi	C472M
Thermal Performance	K-value of 2.8 Btu/ft²·h·°F; R-value of 0.36 ft²·h·°F/Btu	C177
Fire Hazard Classification	Flamespread index 0; Fuel Contribution 0; Smoke Density 0	E84, E136
Patty Size	8 1/2" (approx. 216mm) 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

Technische specificatie

Unieke ref.firm-fill-3310-floor-underlayment
ProductfamilieGypsum Cement Underlayment
ProductgroepGypsum Concrete Floor Underlayment
TypeObject (enkelvoudig object)
Publicatiedatum2026-03-02
Editienummer1

Links

Product-urlhttps://hackerindustries.com/firm-fill-3310.shtml
Installatie-instructieshttps://hackerindustries.com/pdfs/Firm-Fill-Post-Pour-Instructions.pdf
Technische beschrijvinghttps://hackerindustries.com/3-part-specs/FF_3310C_Specs.pdf

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Classificatie

Categorie BIMobjectVloeren - Onderlaag
CSI MasterFormat 2014 Code03 54 13
CSI MasterFormat 2014 TitelGypsum Cement Underlayment
OmniClass-nummer23-15 17 11 13
OmniClass-titelFloor Underlayments

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