Mix ratio：A:B=4:1
Color:Colorless and transparent liquid.
Viscosity（25℃，mPa•s）:
A：400-600
B：30-60
Gel time（25℃，min）: 20-30
Hardening time（25℃，h）:3-4
Tensile shear strength（MPa）:≥12
Yellowing Resistance:Excellent
It can be used for the surface of marble to be coated with glue, which can repair the cracks and holes on the marble surface, and increase the surface brightness of marble after grinding.
250kg/set
[Product advantages]
1．High adhesion and strength, high penetration to small cracks,
2．Low odor, do no harms to workers；
3．Good age and yellowing resistance；
4．This product meet the standard of GB18583, ROHS, it is environmental friendly
[Instructions]
1. Slabs treatment
Slabs should be totally dry.
Remove the mud, oil or other purity on the slab surface.
2. Prepare the glue and mix
Mix the glue by A:B=4:1(by weight) completely
Please use up the glue within the pot life. The glue will be fever and is prohibited to use when beyond the pot life. The more of the glue mixed, and the higher of the temperature, the shorter the pot life. If mixed too much glue, please divide quickly to use.
Do not mix the cap of A and B. Please seal the caps anytime in case the moisture and dash from the air.
The plated with big open mouth container is recommend for glue mixing to extend the pot life of glue
3. Spreading the glue
Spread the glue evenly on the surface of slab with scrape back and forth. The recommend using weight is 80-150g/㎡。
For the cracks on slabs, spread glue back and forth to make the glue penetrate completely.
For the big defects on the slab, such as the soil, please remove first, then mix the glue and stone powder to fix it. Polish after cured, then spread the glue.
Please do not use the non epoxy and other slab surface treatment agent, or it will be not suitable for the epoxy glue spreading.
4. Glue solidify
The glue will be initially cured in 2-3 house under room temperature(25℃)It can be proceed to next procedure after 24 hours；
If possible, heat up the stone with adhesive to 50-60 ℃ and polish it after 2-3 hours.
Before the adhesive cured, the stone should be placed horizontally and not stacked; after cured, the lubricants such as talcum powder can be applied on the stone surface, to avoid stone adhesion when they are stacked.
5. Clean up
Use the specialized cleaner to clean the apparatus before the glue cured.
FAQ:
How to choose epoxy resin for brushing and repairing stone slab surfaces?
When choosing epoxy resin for marble and granite, it's important to consider the following factors:
1) Opt for transparent epoxy resins to preserve the color of the marble.
2) Ensure the resin is UV light resistant to prevent yellowing over time.
3) Evaluate the resin's viscosity based on the depth of the cavities to be filled.
4) Check for compatibility with marble for strong adhesion and long-term durability.
1. Match Viscosity to the Defect Type
• Flowing / Liquid Epoxies (Low-to-Medium Viscosity): Best for brushing across entire slabs, penetrating hairline micro-fissures, filling small pits, and deep-vacuum slab treatments. They wick easily into tiny gaps.
• Knife-Grade / Thixotropic Epoxy Mastics (High Viscosity): Best for vertical surfaces, edge repairs, or large chips where the material must not sag or run (such as Magelstick-type mastics).
2. Consider Cure Time & Factory Workflow
• Epoxy Resins: Offer superior mechanical strength, minimal shrinkage, and a strong, durable bond, though they require a longer cure time (often several hours to 24 hours depending on the formulation). Ideal for structural and high-durability fixes.
• Polyester Mastics / Resins: Cure much faster (minutes) and accept polish and tint easily, making them common for quick line repairs. However, they are prone to yellowing over time and have weaker adhesion to dense natural or engineered stone than epoxies.
3. Stone Color and UV Resistance
• White or Light-Colored Stones (White Marble, Onyx): Standard epoxies can yellow over time under UV exposure or indoor lighting. Use specialized non-yellowing or UV-stable formulas (or polyurethane-based binders) for white/light stones.
• Dark or Colored Stones (Granite, Colored Marble): Standard high-clarity or UV-stabilized epoxy resins work well and can be color-tinted with stone pigment pastes to match the slab's natural veins.
4. Polishability and Hardness Match
• Use resins specifically formulated for stone fabrication (sourced from professional stone-tool suppliers like Dynamic Stone Tools).
• Generic industrial epoxies may cure either too hard or too soft, causing an uneven gloss or 'halos' (sheen variations) when the slab goes through the automated polishing line.
Best Practices for Factory Application
• Surface Prep: Ensure the slab is completely clean, dry, and free of dust, stone powder, and grease before brushing.
• Mixing Ratios: Measure resin and hardener components with strict precision; improper ratios lead to sticky spots, cloudiness, or incomplete curing.
• Test First: Always test your color-tint and resin gloss on a small scrap piece of the exact same stone before committing to a full production slab.
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