Overview
Three-component epoxy adhesive for stone is a high-strength bonding system consisting of epoxy resin (Component A), amine hardener (Component B) and mineral-filled reactive powder (Component C). It is widely used in marble–granite bonding, structural stone repair and heavy-duty construction applications.
This adhesive system provides excellent compressive strength, chemical resistance, thermal stability and long open time, making it suitable for industrial stone processing and high-performance architectural installations.
Steps To Manufacture Three Component Epoxy Adhesive For Stone
1. Preparation of Component A (Epoxy Resin Base)
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Pre-heat the epoxy resin to reduce viscosity.
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Add reactive diluent (optional) to adjust flow.
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Introduce fillers such as silica flour or calcium carbonate.
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Mix until a smooth, homogeneous resin paste is obtained.
2. Preparation of Component B (Hardener System)
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Select modified amine or polyamide hardener.
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Add plasticizers or flexibility enhancers if required.
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Mix until all additives are fully incorporated.
3. Preparation of Component C (Mineral Powder Blend)
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Combine quartz powder, alumina, or other reinforcing minerals.
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Add thixotropic agents for sag resistance.
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Sieve to ensure uniform particle size.
4. Quality Adjustment
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Check viscosity of Component A.
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Verify pot life using A+B blend.
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Confirm powder flow and reactivity of Component C.
5. Packaging
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Pack Component A and B in moisture-free containers.
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Pack Component C as a dry powder in sealed bags.
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Label each component clearly to avoid mixing errors.
Mixing & Application
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Typical mixing ratio: A + B blended first → gradually add Component C.
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Mix until a consistent, lump-free heavy paste forms.
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Apply on clean, dry stone surfaces.
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Clamp or hold parts without movement until polymerization begins.
Properties
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High mechanical strength
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Strong adhesion to granite, marble, engineered stone
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Solvent-free and low shrinkage
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Excellent gap-filling ability
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Resistant to water, solvents, oils and alkaline environments
Summary
Three-component epoxy adhesive for stone is produced by preparing three separate parts—epoxy resin, amine hardener and mineral-reactive powder—and then packaging them as a system. The manufacturing process focuses on viscosity control, powder uniformity, and reactivity balance to achieve a durable, high-strength structural adhesive suitable for stone bonding and repair applications.
