GPZ-10D
Zeolite Silver Antimicrobial
A precision-engineered zeolite silver antimicrobial additive for paints, coatings, inks, textiles & waterproofing systems. Ultra-low silver loading (0.01–0.1 wt%) for colour-critical formulations. Heat-stable to 800°C. Non-hazardous. CAS 130328-20-0.
GPZ-10D— Zeolite Silver Antimicrobial Additive for Coatings, Inks & Textiles
GPZ-10D is Geocon Products' high-performance zeolite silver antimicrobial additive, designed specifically for formulations that demand effective microbial protection at the lowest possible silver concentration. With an Ag⁺ content of 0.01–0.1 wt%, GPZ-10D delivers proven antibacterial and antifungal performance in paints, coatings, printing inks, textile finishes, and waterproofing systems — at silver levels that stay within international regulatory thresholds for food-contact and environmental compliance. It is the grade of choice wherever silver concentration limits apply, or where formulation cost per litre is a critical commercial factor.
Stable to 800°C — Survives Every Process in Your Coating Line GPZ-10D is built on a Faujasite-X zeolite crystal framework that is thermally stable up to 800°C — higher than any other grade in the BIOX series. This means it remains fully active through high-temperature stoving lacquers, industrial baking enamels, powder coat curing ovens, and ceramic ink firing — processes that destroy organic biocides completely. The zeolite mineral structure is chemically inert, non-reactive, and does not off-gas or decompose during processing. Your antimicrobial protection is locked in from raw material to finished surface.
Continuous Protection — Keeps Working Season After Season GPZ-10D releases silver ions only when triggered by ambient moisture — a self-regulating mechanism that keeps the antimicrobial action going long after the coating has dried, the ink has cured, or the fabric has been washed. It inhibits E. coli, Staphylococcus aureus, Aspergillus niger, mold, algae, and odour-causing bacteria continuously — not in a one-time burst. A wall painted with GPZ-10D remains hygienically protected years later. A textile treated with GPZ-10D retains its antimicrobial performance through repeated laundering. Consistent results batch after batch, season after season.
Drop-In Addition — No Changes to Your Existing Process GPZ-10D is a fine white free-flowing powder (D50: 3–7 µm) that disperses evenly into water-based paints, solvent-borne coatings, printing inks, waterproofing slurries, and textile padding baths without ball milling, wetting agents, or process modification. Add at 0.2–1.0% on total formulation weight, or at 1.0–3.0% for concentrates and masterbatches. Compatible with acrylic, alkyd, epoxy, PU, silicone, and waterborne emulsion systems. It produces no grit, no haze, no odour — and no change to your colour, viscosity, or film performance.
Quick Specifications
GPZ-10N| Form | White Free-Flowing Powder |
| Appearance | Off-white to pale grey |
| Silver (Ag) Content | 0.01–0.1 wt% |
| Particle Size D50 | 3–7 µm (typical) |
| Particle Size D90 | ≤ 15 µm (typical) |
| Screen Residue (45µm) | ≤ 1.0% |
| Bulk Density | 0.45–0.80 g/cm³ |
| Specific Gravity | 2.0–2.5 |
| Moisture Content | ≤ 1.0% |
| pH (1% slurry, 25°C) | 7.0–10.0 |
| Solubility | Insoluble (dispersible) |
| Thermal Stability | Up to 600°C |
| Crystal Structure | Zeolite (Faujasite-X) |
| Mohs Hardness | 3–5 |
| Dosage (Polymer) | 0.2–1.0% |
| Dosage (Masterbatch) | 1.0–3.0% |
| Odour | Odourless |
| Shelf Life | 24 months |
Where GPZ-10D Delivers Proven Results
GPZ-10D's ultra-low silver loading (0.01–0.1 wt%) and 800°C thermal stability make it the specialist grade for colour-critical, heat-processed, and wash-durable applications across four key industries.
Paints, Coatings & Inks
Antimicrobial Additive for Paints, Coatings & Printing Inks
Primary Application
GPZ-10D is formulated specifically for water-based and solvent-borne paint, coating, and ink systems that require proven antimicrobial performance at the lowest permissible silver level. Its ultra-low Ag⁺ loading of 0.01–0.1 wt% makes it the regulatory-safe choice for paints used in food-processing facilities, healthcare environments, and premium consumer applications where silver concentration limits are strictly enforced. Compatible with acrylic emulsions, alkyd systems, epoxy primers, PU topcoats, and UV-cured ink formulations at 0.3–1.0% addition.
Interior & Hygiene Paints
Hospitals, cleanrooms, food-plant walls — sustained mold and bacteria inhibition in high-risk environments.
Industrial & Stoving Coatings
Baking enamels, powder coatings, coil coatings — 800°C stability survives every industrial curing process.
Printing Inks & Overprint Varnishes
Flexographic, gravure, and water-based OPV — anti-microbial protection on food packaging & hygiene labels.
Textiles
Durable Antimicrobial for Textile Finishing & Fabric Treatment
ISO 20743 Tested
GPZ-10D integrates into water-based textile padding baths and finishing systems at 0.2–0.8% to impart wash-durable antimicrobial protection to cotton, polyester, nylon, and blended fabrics. Its ultra-low silver loading is designed for textiles used in direct skin contact — activewear, underwear, and medical garments — where silver ion bioavailability must remain within safety thresholds. Retains >99% bacterial reduction per ISO 20743 after 30+ domestic wash cycles.
Activewear & Sportswear
Eliminates bacteria-driven odour in performance garments — long-lasting freshness through repeated washing.
Medical & Hygiene Fabrics
Hospital linen, wound dressings, protective gowns — skin-safe ultra-low silver loading within ISO thresholds.
Home Textiles & Furnishings
Mattress covers, upholstery, curtains, and carpets — sustained anti-mold and deodorizing performance.
Waterproofing Systems
Anti-Microbial for Waterproofing Membranes & Sealants
Waterproofing applications present the highest microbial risk in the construction sector — constant moisture, warm temperature, and organic substrates create ideal conditions for mold, algae, and bacterial colonization. GPZ-10D is engineered for incorporation into waterproofing membranes, liquid-applied systems, crystalline waterproofing coatings, and elastomeric sealants at 0.3–1.0%, delivering permanent in-built anti-mold and anti-algae protection that lasts the lifetime of the structure — without leaching silver into groundwater or drainage systems.
Roof & Terrace Waterproofing
Prevents algae growth and black mold on exposed roof membranes — reducing maintenance costs over time.
Basement & Underground Coatings
Anti-biofilm protection in below-grade concrete walls, tunnels, and wet-area tanking systems.
Bathroom & Wet-Area Sealants
Silicone and acrylic sealants for showers, pool surrounds, kitchen joints — prevents black mold at grout lines.
Industrial Coatings
High-Temperature Industrial & Specialty Coating Applications
GPZ-10D's 800°C thermal ceiling makes it the only BIOX grade suitable for high-temperature industrial coating processes. Whether the application is a baking enamel on appliance steel, a powder coating on architectural aluminium, or an anti-corrosion primer on industrial equipment — GPZ-10D survives the curing process intact and delivers lasting antimicrobial surface protection without any post-application treatment. Effective in epoxy, polyester, and PVDF-based industrial coating systems at 0.3–1.0% loading.
Powder & Stoving Coatings
Metal panels, appliance housings, architectural aluminium — antimicrobial built into the cured film layer.
Food Plant & Pharma Coatings
Epoxy floor coatings, wall cladding coatings in GMP-regulated environments requiring hygiene compliance.
Marine & Protective Coatings
Anti-fouling protection on marine vessels, offshore structures, and submerged infrastructure surfaces.
Dosage Reference
Paints & Coatings: 0.3–1.0%
Printing Inks: 0.2–0.8%
Textiles: 0.2–0.8%
Waterproofing: 0.3–1.0%
Industrial Coatings: 0.3–1.0%
Get Dosage Guidance →
| Parameter | Unit | Specification |
|---|---|---|
| Product Type | — | Silver-ion antimicrobial zeolite (inorganic) |
| Carrier | — | Zeolite mineral (ion-exchange matrix) |
| Appearance | — | Off-white to pale grey free-flowing powder |
| Odour | — | Odourless |
| Silver (Ag) Content | % (w/w) | 0.01–0.1 |
| Form | — | Micronized powder |
| Particle Size (D50) | µm | 3–7 (typical) |
| Particle Size (D90) | µm | ≤ 15 (typical) |
| Screen Residue (45 µm) | % | ≤ 1.0 |
| Bulk Density (loose) | g/cm³ | 0.45–0.80 |
| Specific Gravity | — | 2.0–2.5 |
| Moisture Content | % | ≤ 1.0 |
| pH (1% slurry, 25°C) | — | 7.0–10.0 |
| Solubility in Water | — | Insoluble (dispersible) |
| Thermal Stability | °C | Stable up to 600 (typical) |
| Crystal Structure | — | Zeolite (Faujasite-X) |
| True Density | g/cm³ | 2.0–2.3 |
| Mohs Hardness | — | 3–5 |
| Max. Temp. of Usage | °C | ~800 |
| Dosage — Polymer / Coating | % | 0.2–1.0 (target log-reduction dependent) |
| Dosage — Masterbatch | % | 1.0–3.0 (let-down per final loading) |
| Compatibility | — | PP, PE, ABS, PC, PVC, nylon, epoxy, acrylic, PU, silicone, waterborne & solvent-borne systems |
| CAS Number | — | 130328-20-0 |
| EC / EINECS No. | — | 603-404-0 |
| HS Code | — | 2842.10.00 |
| Transport Classification | — | Non-Regulated / Non-Hazardous |
| Shelf Life | months | 24 (in sealed, dry storage) |
Long-Lasting Antimicrobial Protection
Continuous, controlled release of Ag⁺ ions for sustained antibacterial and antifungal performance throughout the product's full commercial lifecycle — not just at initial production.
Non-Leaching & Safe
Silver ions remain locked within the Zeolite lattice, preventing unwanted migration into the product or the surrounding environment during normal use conditions.
High Thermal & Chemical Stability
Maintains structural integrity and full biocidal activity even in high-temperature polymer processing and chemically harsh formulation environments up to 600°C.
Broad-Spectrum Efficacy
Effectively suppresses bacteria (E. coli, S. aureus), fungi, algae, mold, and odour-causing microorganisms across a diverse range of applications and substrate types.
Excellent Dispersion Properties
Fine micronized D50 of 3–7 µm disperses uniformly into plastics, coatings, inks, adhesives, ceramics, and filtration media without agglomeration or surface roughness.
Environmentally Friendly & Non-Toxic
Classified as non-hazardous, free from volatile organic compounds, and safe for consumer, industrial, and hygiene applications — compliant globally with EPA, REACH, FDA, and BIS.
Compatible with Multiple Substrates
Easily integrates into polymers, ceramics, coatings, textiles, and composite systems without altering the mechanical properties or processing characteristics of the host material.
Stable Crystalline Faujasite-X Framework
The Faujasite-X crystal structure ensures reliable ion-exchange performance and predictable antimicrobial release kinetics — maintaining consistent log-reduction values long-term.
Odour Control & Hygiene Enhancement
Reduces microbial odour formation in textiles, consumer goods, refrigerator liners, and water treatment systems — eliminating the biological source rather than masking with fragrance.
Cost-Effective Antimicrobial Solution
Required at lower loadings (0.2–1.0%) compared to organic antimicrobials due to high silver ion efficiency and sustained slow-release mechanism — reducing total formulation cost.
GPZ-10D is classified as non-hazardous under standard transport and chemical handling guidelines. It exhibits low toxicity when used as intended. Always refer to the current Safety Data Sheet (SDS) and observe standard chemical handling precautions listed below.
Non-Hazardous Classification
GPZ-10D is classified as non-hazardous under standard transport and chemical handling guidelines — no special transport restrictions or hazmat documentation required.
Low Toxicity Profile
Silver-exchanged Zeolite is considered low in toxicity when used as intended. Avoid ingestion and prolonged direct skin contact. Not classified as a carcinogen or mutagen.
Dust Inhalation Precaution
Fine powder may cause temporary mechanical irritation to the respiratory tract. Use appropriate dust masks (FFP1/FFP2) or respirators during handling and powder transfer operations.
Eye Contact Protection
Dust particles may cause mechanical irritation. Wear protective eyewear — safety glasses or chemical splash goggles — to prevent eye exposure during handling.
Skin Contact Precaution
May cause mild dryness or irritation with prolonged contact. Use chemical-resistant gloves (nitrile or latex) while handling bulk quantities in production environments.
Ventilation Requirements
Handle in a well-ventilated area or under local exhaust ventilation (LEV) to minimise airborne dust concentration below occupational exposure limits.
Chemical Stability
GPZ-10D is chemically stable, non-reactive, non-flammable, and does not decompose under normal processing or storage temperatures. Avoid contact with strong mineral acids.
Environmental Safety
Product is insoluble and non-leaching — presents low risk to the environment when used correctly. Avoid direct bulk release into waterways, drains, or natural water bodies.
Storage Safety
Store in a cool, dry location away from moisture sources. Keep bags tightly sealed to maintain performance and prevent absorption of atmospheric humidity.
Regulatory Compliance Note
Always consult local regulations for specific permissible limits of silver-containing additives, particularly in food-contact and medical device applications. Regional limits may vary.
For laboratory trials, pilot testing, and initial formulation development. Inner PE liner for moisture protection.
Standard commercial production pack with moisture-resistant polyethylene inner liner to maintain product integrity.
Custom packing sizes available on request for laboratory, pilot-scale, and specialty application requirements.
Labelling & Traceability
Each package is clearly labelled with product name, batch number, net weight, manufacturing date, and shelf-life date for full traceability and quality control compliance.
Sealing & Protection
All bags are inner-lined with moisture-resistant polyethylene liners to maintain product integrity and performance during long-distance storage and international transportation.
Handling of Packaging
Avoid puncturing or tearing bags during storage and handling. Store bags off the floor on wooden pallets to prevent moisture ingress from concrete flooring.
International Transport
Classified as non-dangerous goods under ADR/IATA/IMDG — can be shipped by road, sea, or air freight without special transport restrictions or hazardous materials documentation.