MARMOPOXY-GEL

MARMOPOXY GEL is a two-component, thixotropic, clear epoxy-based joint and crack filler engineered specifically for colored natural stones, granites, concrete, masonry, and metals. Mixed in an easy-to-use 2:1 ratio by weight (Resin : Hardener), MARMOPOXY GEL features a non-sagging thixotropic paste consistency ideal for vertical, horizontal, and overhead applications. It provides high structural strength, exceptional adhesive bond, and lasting durability against abrasion, mechanical stress, water, oils, acids, and alkalis. It cures to a smooth, clear finish that can be seamlessly tinted with pigments to achieve an invisible color-matched repair on colored stone surfaces. Over time, typical of clear epoxy systems, it exhibits a low tendency to turn yellow and is therefore recommended for colored natural stones rather than pure white marble.

Key Highlights

• Thixotropic Non-Sag Consistency: Firm, butter-like paste consistency that holds its shape without dripping or sagging on vertical walls, facades, and overhead installations.
• Engineered for Colored Stones: Specifically formulated for colored marble, granite, travertine, limestone, and masonry repairs (not recommended for pure white marble).
• Two-Component Precision System: Convenient 2:1 mixing ratio by weight (1.3 KG Resin + 0.65 KG Hardener) delivering reliable, predictable curing and high mechanical performance.
• High Structural Strength: Reaches a compressive strength ≥ 60 N/mm², tensile strength ≥ 15 N/mm², and concrete bond strength ≥ 3 N/mm² after a full 7-day cure.
• Shore D Hardness 75–80: Cures into a tough, durable, abrasion-resistant polymer matrix capable of withstanding heavy vehicular and pedestrian traffic.
• Seamless Tinting & Color Matching: Clear base allows easy blending with universal pigment pastes (such as MARMOTINT) to match the exact shade and veining of any natural stone.
• Superior Chemical & Environmental Resistance: Resistant to water, oils, mild acids, and alkalis within a wide service temperature range of -10°C to +80°C.

Technical Specifications

Parameter / Property	Specification / Value
Product Name	MARMOPOXY GEL
Component Type	Two-component epoxy system (Resin + Hardener)
Mixing Ratio (Resin : Hardener)	2 : 1 by weight
Consistency	Thixotropic non-sag gel paste
Color & Appearance	Clear / Transparent (slight yellowing tendency over time)
Pot Life	45 – 60 minutes at 25°C
Application Thickness	0.5 mm to 3 mm
Initial Cure Time	24 hours at 25°C (before light handling/further treatment)
Full Mechanical Cure Time	7 days at 25°C
Compressive Strength	≥ 60 N/mm² (after 7 days)
Tensile Strength	≥ 15 N/mm² (after 7 days)
Elongation at Break	≥ 3%
Bond Strength (Concrete)	≥ 3 N/mm² (concrete substrate failure)
Shore D Hardness	75 – 80
Service Temperature Range	-10°C to +80°C
Chemical Resistance	Resistant to water, oils, mild acids, and alkalis
Standard Packaging	1.95 KG Kit (1.3 KG Resin + 0.65 KG Hardener)
Shelf Life	12 months in original, unopened packaging
Storage Temperature Range	+5°C to +25°C in a cool, dry place away from direct sunlight

Application & Handling

1. Substrate Suitability Specifically engineered for colored natural stones, granites, quartzite, dark marbles, concrete, and masonry. Important Restriction: NOT recommended for pure white marble (such as Statuario or Thassos), as its slight natural yellowing tendency over time can discolor pure white stones. For white marble, use MARMO PU-LIQUID or MARMOGEL-WHITE.

2. Surface Preparation The stone surface and cracks must be structurally sound, clean, and completely dry. Remove all dust, cutting slurry, oils, wax, grease, efflorescence, and loose friable particles. Clean joints and cracks thoroughly using appropriate cleaning agents and blow out debris with clean, dry compressed air. Ensure the substrate is 100% bone-dry; moisture impairs epoxy bonding, causes hazing, and weakens adhesion.

3. Mixing Procedure Accurately weigh 2 parts Resin to 1 part Hardener by weight (2:1 ratio) on a clean digital scale. Stir thoroughly for 2 to 3 minutes using a mechanical mixer or flat spatula until a completely homogeneous, streak-free blend is obtained. If color matching is desired, blend universal pigment paste (e.g., MARMOTINT) carefully into the mix to achieve a precise match with the stone color. Prepare only the quantity that can be comfortably applied within the 45 to 60-minute pot life at 25°C.

4. Application Method Apply MARMOPOXY GEL using a clean spatula, putty knife, or trowel. Press the material firmly into joints, fissures, or cracks, ensuring complete compaction without air pockets or voids. For vertical or overhead applications, the thixotropic nature of the gel prevents dripping or sagging up to 3 mm per pass. For deeper cracks or larger pits, apply the product in successive thin layers to ensure optimal bonding and complete coverage. Scrape away excess material flush with the stone surface before it sets to simplify post-cure diamond grinding and polishing.

5. Curing & Polishing Schedule Allow the repair to cure undisturbed for at least 24 hours at 25°C before applying light loads, foot traffic, or further surface treatments. Full mechanical strength, chemical resistance, and Shore D hardness (75–80) are achieved after 7 days. Surface grinding, diamond honing, and polishing flush with the surrounding stone can proceed after initial 24-hour curing.

Do’s

• Ensure stone surfaces are clean, dry, and free from dust, oil, and contaminants before application.
• Clean joints and cracks thoroughly before filling to ensure proper adhesion.
• Stir for 2 to 3 minutes using a mechanical mixer until a uniform blend is obtained.
• Use within the recommended 45–60 minute pot life.
• Press firmly into gaps to avoid air pockets and ensure proper bonding.
• Apply in successive layers for deeper cracks or pits.
• Allow at least 24 hours before applying loads or further treatments.
• Allow 7 days of curing for full mechanical strength.
• Perform a small test area when color matching or blending pigment pastes.

Don’ts

• Do NOT apply on wet, damp, or moisture-laden surfaces.
• Do NOT alter the 2:1 mixing ratio of resin and hardener.
• Do NOT use on white marble, as slight yellowing may occur over time (recommended for colored stones).
• Do NOT apply excessively thick layers in a single pass.
• Do NOT disturb the filled area before the initial 24-hour cure.
• Do NOT expose the repaired surface to heavy loads or water before full curing.
• Do NOT dilute with water, thinners, or solvents.

Storage & Safety

Storage: Store in a cool, dry place between +5°C and +25°C. Keep away from direct sunlight, moisture, and heat sources.

Handling: Wear protective gloves, protective clothing, and eye protection when handling the product. Ensure adequate ventilation in enclosed spaces during application and curing. Avoid inhalation of vapors.

First aid:

• Skin Contact: Wash thoroughly with clean water and soap. If irritation persists, seek medical advice.
• Eye Contact: Rinse immediately with plenty of clean water for several minutes and consult an ophthalmologist.
• Inhalation: Move to fresh air immediately. Seek medical attention if breathing difficulties arise.
• Ingestion: Do not induce vomiting. Rinse mouth thoroughly and seek medical attention immediately.
• Disposal: Dispose of leftover material and packaging according to local environmental regulations.

Frequently Asked Questions

What is MARMOPOXY GEL?
MARMOPOXY GEL is a two-component, thixotropic, clear epoxy-based joint and crack filler engineered specifically for precision filling and repair in colored stone, concrete, and masonry.

What does "thixotropic" mean and why is it beneficial?
Thixotropic means the gel has a non-sagging, paste-like consistency at rest, allowing easy application onto vertical walls, facades, and overhead joints without dripping or running.

Why is MARMOPOXY GEL recommended for colored stones instead of white marble?
Like most standard clear epoxies, MARMOPOXY GEL has a low natural tendency to yellow over time under UV exposure. While invisible on colored, dark, or veined stones, this can show on pure white marble. For white marble, MARMO PU-LIQUID or MARMOGEL-WHITE is recommended.

What is the mixing ratio of MARMOPOXY GEL?
The mixing ratio is strictly 2 parts Resin to 1 part Hardener by weight (2:1). Always use an accurate digital weighing scale.

What is the working pot life of MARMOPOXY GEL?
The working pot life is approximately 45 to 60 minutes at 25°C after thorough mixing.

How fast does MARMOPOXY GEL cure?
It reaches initial cure in 24 hours at 25°C (safe for light handling and surface finishing) and achieves full mechanical strength after 7 days.

What is the compressive strength of MARMOPOXY GEL?
After 7 days of full curing, it achieves a high compressive strength of ≥ 60 N/mm².

What is the tensile bond strength of MARMOPOXY GEL?
It achieves a tensile strength ≥ 15 N/mm² and a concrete bond strength ≥ 3 N/mm², providing exceptional structural adhesion.

Can surfaces repaired with MARMOPOXY GEL be diamond polished?
Yes. Once initially cured after 24 hours, the repaired areas can be ground, honed, and diamond-polished flush with the stone to produce a seamless, high-gloss finish.

What is the Shore D hardness of the cured material?
It cures to a tough Shore D hardness of 75 to 80, providing excellent scratch, wear, and abrasion resistance.

Does MARMOPOXY GEL offer flexibility?
Yes. It features an elongation at break ≥ 3%, which provides balanced resilience against subtle structural vibration and thermal movement.

Can MARMOPOXY GEL be tinted with color pigments?
Yes. You can blend universal pigment pastes (such as MARMOTINT) into the mixture to match the precise shade, veining, and color of the stone.

Can MARMOPOXY GEL be applied on damp or wet stone?
No. Stone surfaces and cracks must be 100% bone-dry. Moisture blocks epoxy adhesion and causes hazing and poor bonding.

What application thickness is recommended?
The recommended application thickness is 0.5 mm to 3 mm per layer. For deeper cracks or larger pits, apply in successive thin layers.

What tools are best suited for application?
Apply using a clean metal spatula, putty knife, or margin trowel to press the gel firmly into cracks and scrape away surface excess.

What is the service temperature range of the product?
Once cured, MARMOPOXY GEL operates reliably within a service temperature range of -10°C to +80°C.

What is the chemical resistance profile of MARMOPOXY GEL?
It is highly resistant to water, oils, mild acids, alkaline cleaners, and common household chemicals.

What packaging size is MARMOPOXY GEL sold in?
It is supplied as a 1.95 KG kit containing 1.3 KG of Resin and 0.65 KG of Hardener.

Can MARMOPOXY GEL be diluted with solvents or water?
No. Never add water, thinners, or solvents. Dilution impairs crosslinking, delays cure, weakens hardness, and creates pinholes.