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Choosing the Right Product

Firm-Fill

Five Hacker Floor Underlayments availabe to meet virtually any construction need:

FIRM-FILL® Gypsum Concrete - Provides fire-resistance and sound control in multi-family applications.
FIRM-FILL® 2010 - The product of choice over wood subfloors where additional surface hardness is needed.
FIRM-FILL® High Strength - Used over cast-in-place or precast concrete to provide a level, crack-resistant surface.
FIRM-FILL® 4010 - The economical solution for thin capping of damaged or uneven concrete.
GYP-SPAN® Radiant - Provides even heat distribution over hydronic or electric heating floor systems.

Building	Subfloor	Recommended Compressive Strength	FIRM-FILL® Gypsum Concrete	FIRM-FILL® 2010	FIRM-FILL® High Strength	FIRM-FILL® 4010	GYP-SPAN® Radiant
Multifamily	Wood-new	1200-2500 psi	Recommended	Recommended
	Wood-renovation	1500-2500 psi	Optional	Recommended
	Concrete-new	2500-5500 psi		Optional	Recommended	Optional
	Concrete-renovation	2500-5500 psi			Recommended	Recommended
	Radiant heating	2000-3200 psi					Recommended
Single-Family	Wood-new	1200-2500 psi	Recommended	Recommended
	Wood-renovation	1500-2500 psi	Optional	Recommended
	Concrete-new	2500-5500 psi			Recommended	Optional
	Concrete-renovation	2500-5500 psi			Recommended	Recommended
	Radiant heating	2000-3200 psi					Recommended
Commercial	Wood-new	1200-2500 psi	Optional	Recommended
	Wood-renovation	1500-2500 psi	Optional	Recommended
	Concrete-new	2500-5500 psi		Optional	Recommended	Optional
	Concrete-renovation	2500-5500 psi			Recommended	Recommended
	Radiant heating	2000-3200 psi					Recommended

FIRM-FILL

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