Maxxon® Commercial Low Density Fill™ is an innovative, ultra-lightweight product made from proprietary cement and lightweight aggregate. It is easy to place and transition. Maxxon Commercial Low Density Fill can be poured over electrical conduit and plumbing pipes. It is fast drying, regardless of thickness, and ready to be topped with a Maxxon® underlayment the next day.

Where to Use

Application

Multifamily, light commercial wood frame, and concrete construction as part of a subfloor system.

Subfloor

Interior wood, concrete.

Features

• Ideal for deep fill applications, such as trenches and significantly out-of-level areas
• Up to 80% lighter than concrete
• Can be sloped and has no thickness limitation
• 28-day dry density of 28–32 lbs/ft³ (449–513 kg/m³)
• Requires just 3/4" (19 mm) topping of a Maxxon® underlayment
• Fast drying — ready for topping the next day

Technical Characteristics

• Compressive Strength (Modified ASTM C109): Typical range of 200–500 psi (1.38–3.45 MPa)
• Installation Depths: No thickness limitation
• Dry Density: 28–32 lb/ft³ (449–513 kg/m³)
• Working Time: 10–30 minutes
• Final Set: 8–12 hours or Foot Traffic Ready: 6–12 hours
• Coverage (per 40 lb. bag):
  • 1/2" thickness: 36 ft² (3.34 m²)
  • 1" thickness: 18 ft² (1.67 m²)
  • 2" thickness: 9 ft² (0.84 m²)
  • 3" thickness: 6 ft² (0.56 m²)
• Fire Performance (ASTM E84):
  • Flame Spread: 0
  • Fuel Contribution: 0
  • Smoke Development: 0
• Packaging: 40 lb (18.14 kg) bag