Stratarock Crusher Backing Grout

Stratarock Crusher Backing Grout is a heavy-duty, two-component epoxy system formulated to lock and support wear metal components in crushers, grinding mills, and other high-impact equipment used in aggregate and mining operations. With 100% solids content, this grout delivers a strong, stable bond that withstands severe mechanical loads, high vibration, and thermal cycling. Its low shrinkage minimizes internal stress during cure, while the high compressive strength and impact resistance ensure long-term reliability even in harsh environments. Suitable for both standard and cold-weather pours, Stratarock Crusher Backing Grout is trusted by maintenance professionals for securing liners, bushings, and baseplates where conventional grouts may fail.

Key Features of Stratarock Crusher Backing Grout

• High Strength
  Compressive strength of 16,700 psi for dependable load-bearing performance in crushers and mills.
• Low Shrinkage
  Linear shrinkage of just 0.0005 in/in ensures tight bonds and dimensional stability.
• Thermal and Chemical Resistance
  Withstands exposure to oils, water, and processing chemicals with a heat distortion temperature of 150°F.
• Fast Turnaround
  Cures quickly with a back-in-service time of 4–6 hours at 77°F.
• Impact Durable
  Bond impact rating of 55 ft. lb./in. for high-vibration and high-impact environments.
• User-Ready Packaging
  Available in 22 lb. pails (0.19 cu. ft.) with 55 lb. options for larger jobs (special order).

Recommended Uses for Stratarock Crusher Backing Grout

Stratarock Crusher Backing Grout is well-suited for maintenance and installation teams working in aggregate, mining, and heavy industrial environments. It offers reliable bonding for equipment exposed to intense mechanical stress and harsh working conditions.

Ideal Applications:

• • Backing and securing wear parts in crushers
  • Pouring under grinding mill liners
  • Locking eccentric bushings
  • Cold-temperature equipment pours
  • Bolt hole sealing to prevent leakage
  • Equipment prep and regrouting operations

Frequently Asked Questions

What’s the pot life?
The pot life is approximately 20 minutes, so mix only when ready to pour.

Can Stratarock Crusher Backing Grout be used in cold environments?
Yes. The grout is formulated for cold-temperature pours, but materials should be stored between 70°F–80°F for best results.

What’s the recommended preparation before use?
Surfaces should be clean and free from grease or oil. Apply a release agent to areas not intended for bonding and ensure equipment is sealed to prevent leakage.

Is Stratarock Crusher Backing Grout product flammable?
No, the formulation is non-flammable with a flash point over 200°F.

How much coverage does one pail provide?
A 22 lb. pail yields approximately 0.19 cubic feet. A 55 lb. pail yields about 0.49 cubic feet (special order).

How long does it take to return equipment to service?
Typically, 4 to 6 hours at 77°F.