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Commercial Topping® Data Sheet Maxxon Green Mark

Commercial Topping

Manufacturer:
Maxxon® Corporation
920 Hamel Road
P.O. Box 253
Hamel, MN 55340
Phone: 1-800-356-7887 or (763) 478-9600
Fax: (763) 478-2431

Product Description:
Fast drying Commercial Topping® pours from a featheredge to 3" (76 mm) in new construction or renovation projects.  With compressive strengths of 4,000 psi (27.4 MPa) to 4,500 psi (31 MPa), it's the ideal underlayment to meet ASTM F 710, Preparing Concrete to Receive Resilient Flooring. It pours over VAT, VCT, terazzo or ceramic, with no shotblasting required.  For the ultimate strong, smooth finish over concrete, precast, steel deck, wood frame, and old cracked lightweight concrete, specify Commercial Topping.

Now offered in a "Green" formulation, Commercial Topping is an ideal solution for sustainable building projects.

Commercial Topping gypsum underlayment


Commercial Topping a self-leveling gypsum underlayment


Technical Data:
Compressive Strengths: Typical range of 4,000 to 4,500 (28 to 31 MPa)
Point Loading: Typical loading of up to 3,500 lbs.
on a 1" (1589 kg on a 25.4 mm) diameter disc
Dry Density: 125 lbs./ft³ (2,000 kg/m³)
Weight: At 1/2", less than 5.3 lbs./sq. ft.
(At 12.7 mm, less than 25.9 kg/m²)
Flexural Strength: (ASTM C 348) 1660 psi (11.4 MPa) after 28 days
Tensile Strength: (ASTM C 190) 460 psi (3.2 MPa) after 28 days
Surface Burning Characteristics: Flame spread: 0
Fuel contributed: 0
Smoke density: 0
VOC: 0.04 mg/m³


'Green' Information:
USGBC LEED Credit Areas
Project Credit Category How Requirement is Fulfilled
Indoor Environmental Quality LEED for Schools,
EQ Credit 3.2, Option 2
(Air Quality Testing)
Construction Indoor
Air Quality
Management Plan
GREENGUARD Certified (Field testing MUST be completed prior to claiming credit)
LEED for Schools,
EQ Credit 4, Option 3
(Flooring Systems)
Low Emitting Materials GREENGUARD Children & SchoolsTM Certified
Materials & Resources MR 4.1 - 4.2 Recycled Content Fly Ash
MR 5.1 - 5.2 Local/Reg. Materials Manufactured in Blue Rapids, KS 66411; Las Vegas, NV 89035; Camden, NJ 08103; Brunswick, GA 31520; Job site manufactured with local sand & water

Commerical Topping is a GREENGUARD Children & Schools certified gypsum floor underlayment  Commercial Topping is GREENGUARD Children and SchoolsTM Certified

For additional information on GREENGUARD, the USGBC, and Commercial Topping's qualifications for earning LEED points, please see our "Green" page.


Code Listings:
  • ESR-1153
  • ESR-1774
  • State of Rhode Island
  • GREENGUARD Children & Schools

Maxxon provides underlayment, gypcrete, gypsum concrete and other flooring underlayment products for construction, remodeling and renovation.
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