Hanshi 929 Anti-Hollow Elastic Back Glue: An Innovative Solution for Stone Adhesion Challenges

I. Technical Background: The Root of Hollowing Issues

After installation, stone materials can expand and contract with temperature changes, potentially separating from their adhesive layers and forming hollow spots. This problem is particularly significant in materials like terrazzo, which are prone to shrinkage during drying. Traditional methods typically bond stone with rigid layers, disregarding this flexibility and causing frequent hollowing issues.

The Hanshi 929 Anti-Hollow Elastic Back Glue introduces an elastic layer between the stone and adhesive, effectively preventing hollowing by accommodating the natural movements of stone.

II. Key Advantages of Hanshi 929 Anti-Hollow Elastic Back Glue

1. Elastic Buffer Layer: Hanshi 929 forms a resilient layer on the back of the stone, adapting to its slight movements and preventing hollowing.
2. Superior Waterproofing: With resistance to 80,000 mm water pressure, it surpasses standard waterproof adhesives and ensures long-term adhesion.
3. High Adhesive Strength: When combined with cement mortar, Hanshi 929 maintains strength above 1.0 MPa, ensuring a solid bond between stone and substrate.
4. Long-Lasting Durability: Resistant to aging for over 50 years, it performs well under extreme temperatures, safeguarding stone projects for decades.

III. Applications for Hanshi 929

Hanshi 929 is ideal for various projects:

• Terrazzo and Artificial Stone Installations: High-shrinkage stones benefit from its flexible adhesive layer.
• Outdoor Installations in Extreme Temperatures: Resilient against extreme climates, preventing adhesive separation due to temperature shifts.
• High-Humidity Environments: Ideal for pools or plazas, where its waterproofing enhances adhesion reliability.

IV. Usage Instructions

1. Mixing Ratio: Blend 1 kg of Hanshi 929 emulsion with 1 kg of 42.5-grade ordinary Portland cement. Use an electric mixer to ensure consistency.
2. Application Thickness: Apply with a roller at approximately 1 mm thickness, letting it sit for 24 hours to cure before installation.
3. Edge Treatment: Ensure full application around edges for enhanced water resistance.
4. Precautions: Clean the stone surface, free from oil or contaminants, and avoid exposure to rain during curing.

V. Success Stories in Major Projects

Hanshi 929 has been widely adopted in large real estate projects such as Evergrande, Country Garden, and more. Feedback shows no hollowing even after prolonged exposure to weather changes, greatly enhancing adhesion reliability.

VI. Conclusion

Hanshi 929 offers a flexible adhesive layer that effectively resolves hollowing, combining waterproofing, elasticity, and strong adhesion. It ensures safe, durable installations in both indoor and outdoor settings, making it a revolutionary tool in stone installations.