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About Gypsum Underlayments

Gypsum Underlayments


The industry standard for use over wood subfloors in multifamily construction. Provides sound and fire control. Its smooth surface is ideal for finished floor goods. Gyp-Crete is an Eco-Friendly Building Product, and is GREENGUARD Gold Certified.

Gyp-Crete 2000® / 3.2 K*

Achieving strengths up to 3200 psi, designed for use in single family and light commercial construction. Also ideal for renovation projects. Gyp-Crete 2000/3.2K, an Eco-Friendly building product, is GREENGUARD Gold Certified.


Designed specifically for radiant floor heating systems. Use over hot water tubes or electric cables. Provides the ideal thermal mass, plus fire and sound control. Therma-Floor, an Eco-Friendly building product, is GREENGUARD Gold Certified.

Dura-Cap® Flooring*

Ideal for smoothing concrete slabs or precast planks in new or renovation projects. Covers old floor coverings, including vinyl asbestos tile. It can be poured from 3 inches deep to a featheredge. Compressive strengths up to 4,000 psi (27.6 MPa). Dura-Cap, an Eco-Friendly building product, is GREENGUARD Gold Certified.

Commercial Topping®*

Poured from a featheredge to 3", in new construction or renovation projects. Achieves compressive strengths of 4000 to 4500 psi and pours over VAT, VCT, terrazzo or ceramic, with no shotblasting required. Commercial Topping, an Eco-Friendly building product, is GREENGUARD Gold Certified.

*The Maxxon Green Mark:
Maxxon products with this symbol may help contribute toward points for LEED® project certification.


Preview Summary Date URL
Maxxon Gypsum Underlayments Maxxon Gypsum Underlayments
Gyp-Crete Floor Underlayment is one of the most efficient fire and sound control products available for multifamily construction. Standing the test of time since 1972, Gyp-Crete makes for safer, quieter living, and has become a standard in apartments,...
Jun 04, 2021 URL

Brochures | 3-Part CSI specifications

Brochures for Gypsum Underlayments

Brochures for Gypsum Underlayments
Preview Description Format Size Open
Maxxon Systems Brochure
Maxxon Systems Brochure
PDF 4.1 MB Open
Maxxon Videos
BIM files
Maxxon BIM files
COM/ 120 kB Open
Go Green
All of Maxxon's gypsum underlayments, Acousti-Mat® Sound Control Mats and Level-Right Self-Leveling Underlayment are now GREENGUARD Gold Certified, providing the ultimate in green-friendly underlayment and sound control solutions!
  36 kB Open

3-Part CSI specifications for Gypsum Underlayments

3-Part CSI specifications for Gypsum Underlayments
Description Format Size Download
Maxxon® underlayment in multifamily housing
Gypsum cement underlayment recommended specification for Maxxon® floor underlayment in multifamily housing
DOC 240 kB Download

Request for Information / Request a Catalog from Maxxon Corp. about Gypsum Underlayments
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News archive:
Gyp-Crete 2000/3.2K Gypsum Floor Underlayment (Aug 11, 2017)
New Continuing Education Opportunity From Maxxon Corporation (Dec 13, 2011)

03540 - Cementitious Underlayment
09610 - Floor Treatment
09800 - Acoustical Treatment
09820 - Acoustical Insulation and Sealant
09830 - Acoustical Barrier
09963 - Cementitious Coatings
03 54 00 - Cast Underlayment
03 54 13 - Gypsum Cement Underlayment
03 54 16 - Hydraulic Cement Underlayment
07 92 19 - Acoustical Joint Sealants
09 61 00 - Flooring Treatment
09 61 13 - Slip-Resistant Flooring Treatment
09 61 36 - Static-Resistant Flooring Treatment
09 80 00 - Acoustic Treatment
09 81 00 - Acoustic Insulation
09 97 26 - Cementitious Coatings
09 97 26.13 - Interior Cementitious Coatings