Granite, marble and natural stone surfaces are known for their durability and beauty, but even these strong materials can develop cracks due to impact, thermal stress or heavy loads. Repairing such cracks requires specialised crack bond solutions formulated to restore structural strength and aesthetics.
Crackbond HCF 351 from Astral Adhesives is engineered specifically to fix granite cracks, marble fissures and other stone surface defects with high precision.
Types of Cracks on Stone Surfaces
Understanding the type of crack helps in selecting the right bonding method:
1. Hairline Cracks
Thin surface cracks caused by minor stress or wear.
2. Spider Cracks
Small interconnected cracks that form due to aging or temperature variations.
3. Edge Cracks
Seen on countertop edges or slab corners—often caused by accidental impact.
4. Structural Cracks
Deep cracks that may weaken the integrity of the slab.
Why Specialized Crack Bond Adhesives Are Necessary
1. Strong Penetration Ability
A good crack bond adhesive penetrates deep into thin fissures for durable repairs.
2. High Adhesion on Stone
General adhesives do not adhere well on polished or non-porous stone surfaces.
3. Aesthetic Finish
Stone repairs must blend seamlessly with the existing pattern and colour.
4. Long-Term Durability
Crackbond HCF 351 is designed to withstand heat, moisture and daily usage.
How Crackbond HCF 351 Works
1. Low Viscosity Formula
Allows easy penetration into fine cracks.
2. UV & Water Resistance
Prevents discoloration and ensures stable bonding.
3. Fast Curing
Repairs are completed quickly without long downtime.
4. Excellent Aesthetic Results
The cured adhesive matches natural stone tones for near-invisible repairs.
Step-by-Step Guide to Fix Granite Cracks
Step 1: Clean the Surface
Remove dust, polish residue and moisture.
Step 2: Apply Crackbond
Pour or inject Crackbond HCF 351 into the crack.
Step 3: Allow It to Penetrate
Its thin consistency helps it settle deep into the fissure.
Step 4: Remove Excess Material
Wipe off excess adhesive before curing.
Step 5: Cure & Polish
Once hardened, polish the area for a smooth, glossy finish.
Applications
- Kitchen countertops
- Marble floors
- Stone table tops
- Wall claddings
- Steps and edges
Yes, it is formulated for both superficial and deep crack repairs.
No, Crackbond blends well with natural shades for a seamless finish.
Yes, it is UV-stable and weather-resistant.
