MARMORUST-REMOVER

MARMORUST-REMOVER is a powerful, concentrated, mild acid-based rust remover specially formulated for industrial stone processing, quarry gang saw fabrication, and professional stone restoration applications. Engineered with advanced chelating agents and active mild acidic compounds (pH 2.0 – 3.5), MARMORUST-REMOVER effectively dissolves, lifts, and eliminates stubborn rust stains, embedded iron oxide deposits, metallic contamination, oxidation marks, and machinery abrasion stains from natural stone surfaces without requiring destructive mechanical grinding or harsh abrasive scouring. It restores the pristine aesthetic appearance of natural stone post-processing, post-installation, or following chemical acid-burn discoloration. Suitable for granite, marble, limestone, porcelain, ceramic, and concrete, MARMORUST-REMOVER features a low-foam, water-miscible formula that penetrates deep into surface pores while rinsing off cleanly and effortlessly.

Key Highlights

• Concentrated Mild Acid Formulation: Specifically engineered with controlled acidity (pH 2.0 – 3.5) to dissolve oxidized iron deposits effectively without aggressively attacking stone integrity.
• Deep Penetrating Action: Infiltrates stone pores and micro-fissures to dissolve stubborn, deeply embedded iron rust stains and gang saw blade slurry marks.
• Fast-Acting Industrial Restoration: Reacts rapidly within 5 to 15 minutes, converting insoluble iron oxides into water-soluble complexes.
• Broad Stain Elimination: Highly effective against metallic tool contamination, shot blasting residues, steel equipment drag marks, and acid-wash discoloration.
• Low-Foam & Clean Rinsing: Produces minimal foam during agitation, ensuring fast, residue-free rinsing with water.
• Substrate Versatility: Safe and effective on granite, sandstone, slate, porcelain, ceramic tiles, concrete, and limestone/marble (when applied with controlled contact times and pre-testing).
• Flexible Dilution Options: Use neat (undiluted) for heavy industrial contamination, or dilute 1:1 with clean water for moderate surface oxidation.

Technical Specifications

Parameter / Property	Specification / Value
Product Name	MARMORUST-REMOVER
Chemical Formulation Type	Concentrated mild acid-based rust & iron deposit remover
Physical Appearance	Clear liquid
Density / Specific Gravity	1.05 ± 0.05 g/cm³
Viscosity	Low viscosity (fluid, deep-penetrating liquid)
pH Level	2.0 – 3.5 (Mild acidic)
Flash Point	> 70°C (Non-flammable under standard conditions)
Odour	Mild acidic
Solubility in Water	Completely miscible in water (100%)
Application Temperature Range	+5°C to +35°C (Ambient and surface temperature)
Theoretical Coverage Rate	8 – 12 m² per litre (depending on substrate porosity and texture)
Reaction / Dwell Time	5 – 15 minutes (varies based on stain severity and thickness)
Cleaning / Removal Method	Water rinse and wipe with a clean microfiber cloth
Packaging Sizes	1 Litre Bottle and 5 Litre Can
Shelf Life	12 months in original, unopened packaging
Storage Temperature Range	+5°C to +30°C in a cool, dry place away from direct sunlight

Application & Handling

1. Substrate Suitability & Preparation Compatible Substrates: Granite, slate, quartzite, sandstone, ceramic, vitrified porcelain tiles, concrete, and natural stone. Surface Preparation: Ensure the target stone surface is clean, dry, and completely free of loose dirt, sand, oil, grease, or construction debris. Critical Step (Spot Testing): Always perform a small preliminary test application on an inconspicuous area or off-cut tile before full-scale use to determine optimal dwell time and substrate compatibility (especially on polished calcium-based stones like marble and limestone).

2. Application & Dilution Instructions Apply MARMORUST-REMOVER evenly over the affected stained area using an acid-resistant brush, sponge, or manual applicator. For Heavy Rust Stains & Industrial Contamination: Apply MARMORUST-REMOVER neat (undiluted) directly onto the dry stain. For Moderate or Light Rust Stains: Dilute 1:1 with clean potable water prior to application.

3. Dwell Time & Agitation Allow the product to dwell and react on the rust stain for 5 to 15 minutes, depending on the depth and severity of the oxidation. Crucial Rule: Do NOT allow the product to dry completely on the stone surface during the reaction phase. If drying begins, re-apply a light coat to keep the area moist. Where necessary, agitate gently using a soft nylon-bristle brush to assist in breaking up stubborn surface crusts. Never use wire brushes or abrasive pads.

4. Rinsing & Neutralization After the dwell time, rinse the treated area thoroughly with generous amounts of clean potable or distilled water to flush away dissolved iron complexes and chemical residues. Wipe the surface completely dry using a clean microfiber cloth. For severe, aged, or deeply embedded rust deposits, repeat the application process once the stone is completely dry.

Do’s

• Perform a small test patch in an inconspicuous area before large-scale treatment.
• Apply directly onto dry rust stains for maximum chemical contact.
• Allow 5 to 15 minutes of reaction time for optimal performance.
• Agitate gently with a nylon brush on textured or rustic stone surfaces.
• Rinse thoroughly with plenty of clean or distilled water after treatment.
• Repeat the treatment for old, deep-set, or severe metallic stains if necessary.
• Wear chemical-resistant gloves, protective eye goggles, and appropriate protective clothing.
• Keep the container tightly sealed immediately after dispensing.

Don’ts

• Do NOT apply on dirty surfaces without prior dry cleaning.
• Do NOT over-dilute beyond recommended ratios.
• Do NOT mix MARMORUST-REMOVER with bleach, strong mineral acids, caustic alkalis, or other cleaning chemicals (risk of hazardous chemical reactions).
• Do NOT allow the product to dry completely on the stone surface.
• Do NOT use abrasive scouring pads, steel wool, or wire metal brushes that scratch polished stone surfaces.
• Do NOT leave the product on the stone longer than recommended dwell times.
• Do NOT apply on excessively hot stone surfaces or under direct, scorching sunlight (> 35°C).

Storage & Safety

Storage: Store sealed in original packaging in a cool, dry place between +5°C and +30°C, away from direct solar radiation and heat sources.

Handling: Use only in well-ventilated areas. Wear protective gloves, safety eyewear, and protective clothing to avoid skin and eye contact. Avoid inhalation of vapors.

First aid:

• Skin Contact: Wash immediately with mild soap and clean water. If irritation persists, seek medical advice.
• Eye Contact: Rinse cautiously with clean water for several minutes. Remove contact lenses if present and easy to do. Seek immediate medical attention.
• Inhalation: Move person to fresh air immediately. If feeling unwell or breathing difficulties develop, seek medical assistance.
• Ingestion: Do not induce vomiting. Rinse mouth thoroughly with water and seek immediate medical attention.
• Disposal: Dispose of product residues and packaging according to local environmental regulations. Do not discharge into open drains or waterways.

Frequently Asked Questions

What is MARMORUST-REMOVER?
MARMORUST-REMOVER is a powerful, concentrated, mild acid-based cleaner formulated specifically for dissolving and removing rust stains, iron oxide contamination, and metallic deposits from stone surfaces.

How does MARMORUST-REMOVER work?
Its active mild acidic chelating formula chemically reacts with insoluble iron oxides (rust), converting them into soluble iron complexes that can be easily rinsed away with clean water.

What types of stains does MARMORUST-REMOVER eliminate?
It removes rust spots, metallic equipment drag marks, shot-blasting residues, iron contamination from gang saw cutting blades, fertilizer rust spots, and acid-burn discoloration.

Can MARMORUST-REMOVER be used on granite?
Yes. Granite contains natural quartz and feldspar that are highly acid-resistant, making MARMORUST-REMOVER ideal for removing rust blooms and cutting blade marks from granite slabs.

Is MARMORUST-REMOVER safe for marble and limestone?
Because marble and limestone are calcium carbonate stones sensitive to acid, MARMORUST-REMOVER should be used with strict control: always perform a small test patch, limit dwell time to 5 minutes, rinse thoroughly, and re-polish if slight surface dulling occurs. For non-acidic organic stain removal on marble, use MARMOMAGIC-STAINOUT.

Can it be used on porcelain and ceramic tiles?
Yes. It is completely safe and highly effective for removing metal drag marks, rust stains from metal furniture legs, and metallic scaffolding stains from porcelain and ceramic tiles.

What is the dilution ratio for MARMORUST-REMOVER?
Use undiluted (neat) for heavy industrial rust and deeply embedded stains. For moderate surface oxidation, dilute 1:1 with clean potable water.

What is the recommended dwell time?
Allow the product to react on the stain for 5 to 15 minutes. Never let the product dry out on the stone surface during this period.

Why must the product not be allowed to dry on the stone?
If allowed to evaporate completely, the dissolved iron salts can redeposit deeper into the stone capillaries, creating permanent mineral haze.

What should I do if the product starts drying before 15 minutes?
Apply a light additional coat of MARMORUST-REMOVER over the area to keep it uniformly moist throughout the reaction process.

Can I use wire brushes or steel wool with MARMORUST-REMOVER?
No. Steel wool and wire brushes scratch polished stone surfaces and leave microscopic metallic fragments that will oxidize into fresh rust. Use only soft nylon-bristle brushes.

What is the coverage rate of MARMORUST-REMOVER?
One litre covers approximately 8 to 12 m², depending on the porosity, roughness, and texture of the substrate.

Why is rinsing with water crucial?
Thorough rinsing neutralizes the residual acidity and flushes away all dissolved iron compounds, preventing surface etching and chemical residues.

What is the pH level and density of the product?
It has a controlled mild acidic pH of 2.0 to 3.5 and a liquid density of 1.05 ± 0.05 g/cm³.

Does MARMORUST-REMOVER create high foam?
No. It features a low-foam formulation specifically designed for effortless, fast rinsing and minimal water consumption on job sites.

Can MARMORUST-REMOVER be mixed with bleach or ammonia?
No! Never mix acid-based products with bleach, chlorine, or ammonia, as this releases dangerous, toxic gases and renders the chemical ineffective.

What packaging sizes are available?
MARMORUST-REMOVER is packaged in 1 Litre bottles and 5 Litre heavy-duty cans.

What is the shelf life and storage recommendation?
It has a shelf life of 12 months in unopened original packaging stored in a cool, dry place between +5°C and +30°C away from heat and direct sunlight.

How do I prevent rust stains from returning after cleaning?
Once the stone has dried completely, seal the stone thoroughly with a penetrating hydrophobic and oleophobic impregnator such as MARMOBARRIER or MARMOBARRIER-W to prevent moisture and iron oxidation.