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Rib & Roof Polyurethane Sealant

Air & Moisture Control System

Rib & Roof polyurethane foam sealant is a unique, proprietary, non-strength enhancing, two part expanding foam system.  It provides an air moisture barrier which, after application, isolates the coal seam from air movement that can cause scaling and general spalling of coal off the ribs and roof in underground coal mines.

This proven, maintenance-free system ensures a brighter, safer working environment while reducing dust.  Rib & Roof costs a fraction of traditional "cement" coatings and it does not require pumps, water, compressors or supplied air. 

Features & Benefits

  • Yields up to 1,500 sq. ft. @ 3/8" thickness
  • One person operation
  • Stops spalling
  • Stops air leaks in old seals and on stopping ribs
  • Reduces dust
  • Does not require pumps, water, compressors or supplied air
  • ASTM E84 Class A Fire Resistance
    • Flame Spread: 15
    • Smoke Developed: 75
  • Reusable applicator with 30 ft. hose
  • No offensive odor during use or after cured
  • Bright, reflective beige color
  • Long lasting

Typical Uses

  • Entries
  • Cross Cuts
  • Ambulance alcoves
  • Underground lunch rooms
  • Shaft bottom areas
  • With Tensar® Mining Systems products

Kit Includes

  • 30' pre-attached hose
  • P2 reusable applicator gun
  • Additional fan spray nozzles
  • Wrench
  • Extra o-ring
  • Petroleum jelly
  • All instructions
  • Product data sheet

Technical Information

Rib & Roof - Product Data Sheet (PDF)
Rib & Roof Component A Safety Data Sheet (PDF)
Rib & Roof Component B Safety Data Sheet (PDF)


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