Belter Therm

Belter Therm is an insulative lightweight fill product that utilizes 55% post-industrial recycled content and fire retardant foam to create a strong, lightweight, and highly insulative fill. Its lightweight allows for easy handling and is excellent for use as a strong base around heating pipes and any area where insulation is needed. 

Features & Benefits

• Weight per ft3- 37lbs Dry 

• Thermal Insulating 

• Stable, very light spherical grain 

• Good pourability 

• ASTM C39 Compressive Strength 7 days = 2500 

• Slump ranges 8-9 inches 

• Superior Fire Suppression Tested to ASTM E119 

• Meets ASTM E136 non-combustible 

• Not a host for pests or rodents 

• Does not provide a bed for mold growth 

• Contaminant-free, odorless, anti-allergen 

• Tested and recommended by the Institute of Building Biology + Sustainability 

• Long-term stable, no material fatigue