Description:Stonezyme SF is a new-generation neutral cellulase enzyme for denim washing, offering high abrasion, low stain, and stone-free processing. Designed for wide temperature and pH ranges, it delivers sustainable, cost-effective performance in washing chemicals and textile enzyme applications. Keywords:Stonezyme SF, washing chemicals, textile enzymes, detergent enzymes, food enzymes, neutral cellulase, denim washing enzyme, enzyme washing, eco-friendly washing agent, enzyme for denim, garment finishing, KDN Biotech, industrial enzyme, sustainable textile processing In the fast-evolving world of washing chemicals and textile enzymes, innovation drives efficiency, sustainability, and quality. Stonezyme SF, developed by KDN Biotech (Shanghai) Co., Ltd., represents a breakthrough in neutral cellulase enzyme technology. Engineered for fast abrasion, high contrast, and low staining, it delivers outstanding results in denim washing—while significantly reducing or even eliminating the need for pumice stones. Advanced Enzymatic Technology Stonezyme SF is formulated with a new generation of neutral cellulases, enhanced buffer chemicals, and anti-stain agents. This unique combination ensures balanced performance—providing excellent abrasion, acceptable grain, and minimal back-staining, even under mild washing conditions. Key Features and Benefits Superior abrasion performance with a highly competitive cost-performance ratio. Wide temperature range (30–60°C) — performs effectively under various process conditions. Neutral pH adaptability (5.5–8.0) — compatible with most washing systems. Stone-free or stone-reduced processing — minimizes pumice stone usage, reducing machine wear and environmental impact. Optimal operation at 45–55°C — achieves the perfect balance between graining, color contrast, and low staining. By integrating Stonezyme SF into denim finishing, manufacturers can reduce energy use, simplify processes, and produce high-quality, environmentally friendly garments. Application Guidelines Recommended Dosage: Denim garments (belly washers/front loaders): 0.5–1.0% owg Recommended Conditions: Temperature: 30–60°C (optimal: 45–55°C) pH range: 5.5–8.0 (optimal: 6.0–7.0) These flexible conditions make Stonezyme SF an ideal choice for laundries aiming to optimize performance and reduce production costs while maintaining consistent wash effects. Sustainability and Versatility Unlike conventional washing chemicals, Stonezyme SF relies on biodegradable enzyme technology. Its ability to function efficiently at low to moderate temperatures contributes to energy savings and environmental sustainability. While primarily designed for denim finishing, its formulation technology is part of KDN Biotech’s broader enzyme portfolio, which also includes food enzymes and detergent enzymes—all engineered for cleaner, greener manufacturing solutions. Packaging and Storage Packaging: 25 kg paper box Storage: Keep at or below 25°C in a sealed container to maintain enzyme activity. Avoid exposure to heat for prolonged periods. Safety and Handling Stonezyme SF is non-flammable and safe when handled properly. Avoid inhalation of enzyme dust or mist. In case of skin or eye contact, rinse immediately with plenty of water for at least 15 minutes. For detailed handling procedures, consult the Material Safety Data Sheet (MSDS) available from KDN Biotech (Shanghai) Co., Ltd. Conclusion Stonezyme SF combines the latest advancements in neutral cellulase enzyme technology with superior process efficiency. Its wide operating range, cost-effectiveness, and eco-friendly formulation make it a preferred choice in modern textile enzyme applications. By using Stonezyme SF, garment processors can achieve premium denim aesthetics—with less energy, less waste, and more value.

Description:Stonezyme DP6000 is a high-concentration cellulase powder enzyme designed for denim and casual wear washing. Featuring wide pH adaptability, strong abrasion contrast, and excellent low-temperature performance, it offers a sustainable and cost-effective solution for washing chemicals and textile finishing. Keywords:Stonezyme DP6000, washing chemicals, textile enzymes, detergent enzymes, food enzymes, denim washing enzyme, low temperature enzyme, cellulase powder, KDN Biotech, eco-friendly washing agent, enzyme washing, garment finishing, enzyme formulation, industrial enzymes In today’s textile industry, washing chemicals and textile enzymes play a crucial role in achieving both sustainability and high-quality finishing. Among them, Stonezyme DP6000, developed by KDN Biotech (Shanghai) Co., Ltd., stands out as a new-generation powder cellulase enzyme designed for denim washing and garment finishing. With its low-temperature activity, high enzyme concentration, and broad pH adaptability, it delivers maximum cost-efficiency and environmental benefits. Key Features of Stonezyme DP6000 Stonezyme DP6000 is engineered to meet the demanding requirements of denim and casual wear finishing. Below are its remarkable characteristics: High enzyme concentration — Delivers the best cost-performance ratio for formulators. Low-temperature activity (20–40°C) — Ensures effective enzyme performance even in energy-saving conditions. Wide pH adaptability (6.0–7.5) — Ideal for neutral or mild alkaline washing systems. Strong abrasion contrast — Produces a high 3D effect with minimal color pull. Excellent strength retention — Maintains fabric durability and texture. Anti-back staining — Keeps washed garments clean and bright. These benefits make Stonezyme DP6000 a preferred choice for denim laundries aiming to combine eco-efficiency and premium aesthetics. Application and Formulation Stonezyme DP6000 is a pure enzyme powder compatible with buffers, non-ionic surfactants, and fillers. It can be easily formulated into customized enzyme washing chemicals according to process requirements. Recommended Application Conditions: Dosage: 1–2 g/L Temperature: 20–40°C pH Range: 6.0–7.5 (optimal 6.0) Treatment Time: 20–40 minutes Typical formulation (based on garment weight): Stonezyme DP6000: 0.2–1.5% Buffer salt: 20–40% Resist salt: 0–20% Surfactants: 0–10% Soluble fillers: 0–30% Conditioning agents: 0–5% Note: Avoid anionic surfactants; use compatible non-ionic types for best results. Sustainability and Versatility By maintaining high performance at low temperatures, Stonezyme DP6000 reduces water and energy consumption—making it a sustainable solution for the textile industry. While primarily designed for denim finishing, its enzymatic efficiency also makes it relevant to other industries that utilize detergent enzymes and food enzymes for improved process control and eco-friendly manufacturing. Safe Handling and Storage Store below 25°C in a sealed container. Avoid prolonged exposure to heat to preserve activity. Prevent direct contact and inhalation of enzyme dust. In case of contact with skin or eyes, rinse immediately with water. For detailed safety guidelines, refer to the Material Safety Data Sheet (MSDS) available from KDN Biotech (Shanghai) Co., Ltd. Conclusion Stonezyme DP6000 represents a new benchmark in washing chemicals and textile enzyme technology. With its low-temperature performance, high concentration, and superior finishing quality, it empowers garment processors to achieve both efficiency and sustainability.For more information, contact KDN Biotech (Shanghai) Co., Ltd., a trusted leader in industrial enzymes and eco-friendly textile solutions.

Description:Catazyme 800L by KDN Biotech is a concentrated catalase enzyme designed to decompose residual hydrogen peroxide after bleaching. Ensures safe dyeing, low water use, and eco-friendly textile processing. Keywords:Catazyme 800L, catalase enzyme, hydrogen peroxide removal, textile bleaching enzyme, post-bleaching treatment, eco-friendly washing chemical, enzyme for dyeing preparation, sustainable textile processing, KDN Biotech, garment bleaching enzyme, textile auxiliary enzyme Eco-Friendly Catalase Solution for Post-Bleaching and Dyeing Preparation Catazyme 800L, developed by KDN Biotech (Shanghai) Co., Ltd., is a highly concentrated industrial-grade liquid catalase enzyme produced by submerged fermentation of a genetically modified Bacillus subtilis strain. It is specially designed to decompose residual hydrogen peroxide left after the bleaching of cotton knits and yarns — ensuring clean, safe, and dye-ready fabrics. By breaking down hydrogen peroxide into oxygen and water (2H₂O₂ → 2H₂O + O₂), Catazyme 800L provides an eco-friendly and efficient solution that minimizes water use, reduces processing time, and protects fabric quality before dyeing. Typical Characteristics Property Specification Appearance Dark Brown Liquid pH 4.5 – 7.0 Specific Gravity 1.0 – 1.1 Activity Definition:1 Ctun = the amount of enzyme that decomposes 1 μmol of hydrogen peroxide per minute under standard test conditions (pH 7.0, 30°C). Key Advantages Efficient Hydrogen Peroxide Removal – Ensures complete peroxide breakdown before dyeing. Reduced Water Consumption – Allows processing in the same bath, saving rinse water. Short Process Time – Rapid peroxide elimination for faster production cycles. Safe and Reliable – Prevents dyeing defects caused by peroxide residues. Eco-Friendly – Converts peroxide into harmless oxygen and water, reducing wastewater load. Application Guidelines 1. Drain the bleaching liquor bath.2. Refill with fresh water at the temperature and liquor ratio required for dyeing.3. Adjust bath pH to 6–8 and ensure temperature is below 55°C.4. Add 0.002–0.005 g/L Catazyme 800L and begin circulation.5. After 10 minutes, test for residual hydrogen peroxide. If present, continue for another 5–10 minutes.6. Once peroxide elimination is confirmed, proceed directly to the dyeing process in the same bath. Dosage Recommendations Typical range: 0.001–0.01 g/L (depending on fabric type and residual peroxide level) Best results: Maintain optimal temperature below 55°C and neutral pH. Packaging & Storage Packaging: 30 kg plastic drum Storage: Keep sealed at or below 25°C Shelf life: 12 months under good storage conditions Safety & Handling Avoid inhaling enzyme mist or dust. In case of skin or eye contact, rinse thoroughly with water for at least 15 minutes.Refer to the Material Safety Data Sheet (MSDS) available from KDN Biotech (Shanghai) Co., Ltd. Sustainable Processing with Catazyme 800L Hydrogen peroxide is a key agent in textile bleaching, but its residues can interfere with dye uptake and fabric quality. Catazyme 800L offers a green, high-performance alternative to chemical neutralizers, ensuring peroxide-free fabrics ready for dyeing. Its enzymatic process not only safeguards fiber integrity but also enhances process safety, reduces water use, and minimizes environmental impact, making it an ideal choice for modern textile mills and garment laundries committed to sustainability and operational excellence.

Description:Amyzyme P5000 by KDN Biotech is a high-concentrated α-amylase enzyme powder optimized for 75–85°C desizing. Ensures effective starch removal without fiber damage. Ideal for garment laundries, denim washing, and textile dyeing mills. Keywords:Amyzyme P5000, α-amylase enzyme, textile desizing enzyme, medium temperature amylase, fabric desizing chemical, enzyme for denim washing, KDN Biotech, eco-friendly washing chemical, starch removal enzyme, enzymatic desizing, textile processing enzyme, sustainable textile chemicals Advanced Enzymatic Solution for Clean, Safe, and Eco-Friendly Textile Processing Amyzyme P5000, developed by KDN Biotech (Shanghai) Co., Ltd., is a high-concentrated α-amylase enzyme powder designed for efficient removal of starch-based sizing agents used in textile processing. Unlike harsh oxidative desizing methods that can damage cellulose fibers, Amyzyme P5000 targets only starch, ensuring gentle action, high efficiency, and excellent fabric strength retention. This advanced enzymatic desizing agent delivers consistent results across a wide temperature range and is particularly suitable for garment laundries, denim washing, and dyeing mills that demand precision and reliability in every batch. Typical Characteristics Property Specification Appearance Powder Water Content ≤ 8.0% Fineness ≥ 80% Key Advantages Medium-Temperature Performance – Optimized for 75–85°C, enabling efficient desizing without overheating. Gentle on Fibers – Protects cellulose structure, ensuring no fiber damage and excellent color retention. Versatile Applications – Suitable for cold pad batch, pad roll, jigger, and garment washing processes. Consistent Results – Delivers uniform desizing even on complex fabric constructions. Eco-Friendly – Reduces the need for harsh chemicals, supporting sustainable textile manufacturing. Application Recommendations Typical Processes: Pad batch Pad roll Jigger Garment washing Example Usage: Pad with 0.03–0.5 g/L Amyzyme P5000 at around 60°C, dwell for 0.5–3 hours for optimal desizing results. Follow with proper rinsing to remove dextrins and residual size. Note: Not suitable for pad steaming processes. Process Parameters Parameter Optimal Range Operational Range pH 6.0 – 7.0 5.5 – 7.5 Temperature 75 – 85°C 50 – 90°C Factors Affecting Performance: Nature and amount of sizing agent Fabric structure and density Equipment type and process conditions Water quality and hardness Packaging & Storage Packaging: 30 kg drum Storage: Keep below 25°C in sealed containers. Shelf Life: 12 months when stored properly in a cool, dry environment. Safety Handling Avoid inhaling enzyme dust or mist. In case of skin or eye contact, rinse thoroughly with water for at least 15 minutes.For more information, consult the Material Safety Data Sheet (MSDS) provided by KDN Biotech (Shanghai) Co., Ltd. Why Choose Amyzyme P5000? In modern textile and denim processing, quality and sustainability go hand-in-hand. Amyzyme P5000 offers mills and laundries a safe, energy-efficient, and high-performance alternative to chemical desizing. Its controlled enzymatic action ensures clean desizing results while maintaining the softness, color, and integrity of the fabric. By integrating Amyzyme P5000 into your washing or dyeing workflow, you gain faster desizing, reduced environmental impact, and greater consistency in production outcomes—meeting the demands of today’s eco-conscious textile market.

Description:Amyzyme FB New by KDN Biotech is a high-concentrated, wide temperature tolerant α-amylase enzyme for fabric desizing. Delivers fast starch removal, no fiber damage, and excellent color retention. Ideal for pad roll, jigger, and garment washing applications. Keywords:Amyzyme FB New, α-amylase enzyme, textile desizing enzyme, fabric desizing, high temperature amylase, wide temperature amylase, enzyme for denim washing, KDN Biotech, eco-friendly washing chemical, enzymatic desizing, starch removal enzyme, sustainable textile processing Powerful Enzymatic Solution for Sustainable and High-Performance Desizing Amyzyme FB New, developed by KDN Biotech (Shanghai) Co., Ltd., is a highly concentrated and wide temperature tolerant α-amylase enzyme designed for efficient fabric desizing. Derived from a selected bacterial strain, this enzyme rapidly breaks down starch-based sizes and their derivatives into dextrins, which are easily removed during rinsing. Its strong amylolytic activity ensures fast and complete desizing without damaging fibers or affecting color brightness—making it ideal for both textile dyeing mills and garment laundries. Typical Characteristics Property Specification Appearance Brown liquid pH (Operational range) 5.0 – 7.0 Specific Gravity 1.10 – 1.25

Description:Discover Celpolish P9000, a highly concentrated neutral cellulase enzyme ideal for denim-washing, biofinishing, and detergent formulations. Learn about its features, benefits, and applications in washing chemicals, textile enzymes, food enzymes, and detergent enzymes. Keywords:Celpolish P9000, cellulase enzyme, textile enzyme, detergent enzyme, food enzyme, washing chemicals, enzyme for denim washing, enzyme for biofinishing, neutral cellulase, enzyme powder, eco-friendly enzyme, thermostable cellulase, enzyme formulation In the rapidly evolving textile and detergent industries, enzymes are at the heart of innovation and sustainability. Among them, cellulase enzymes play a key role in biofinishing, denim-washing, and even detergent formulations. One outstanding product in this field is Celpolish P9000, a highly concentrated neutral cellulase powder enzyme developed through advanced submerged liquid fermentation. What Makes Celpolish P9000 Unique? Celpolish P9000 represents a new generation of ultra-concentrated powder cellulase designed for wide industrial use. It offers exceptional enzyme activity, broad temperature adaptability, and strong compatibility with common textile auxiliaries. Appearance: Fine brown powder Working Temperature: 23–60°C Optimum pH Range: 5.0–6.0 Water Solubility: Fully soluble at room temperature Unlike traditional enzyme formulations, Celpolish P9000 combines high enzyme efficiency with neutral pH performance, allowing manufacturers to integrate biofinishing and reactive dyeing in a single bath process—saving time, energy, and cost. Advantages and Industrial Benefits Wide pH and Temperature Tolerance: Works effectively under both acidic and neutral conditions. Thermostable Enzyme: Higher stability compared to liquid cellulase formulations. Versatile Application: Suitable for biofinishing of knits, denim-washing, and enzyme-based detergent formulations. Cost-Efficient: High activity means lower dosage and reduced process time. Eco-Friendly Choice: Enables enzymatic textile treatments that replace harsh chemicals, reducing environmental impact. Application Guidelines For Biofinishing Garments (Belly washers/Front loaders): 0.1–0.4% owg Fabrics (Jets or soft-flow): 0.2–0.5% owf For Denim-Washing Powder Re-formulation: 0.1–0.75% Based on 0.45% formulation: 0.5–2% owg Celpolish P9000 is compatible with most auxiliaries, including dispersing agents, anti-stain agents, and sequestering agents, making it easy to integrate into existing formulations or processes. Beyond Textiles: Broader Enzyme Applications While cellulase is mainly known for textile applications, enzymes are essential in various industries such as: Detergent enzymes for efficient stain removal Food enzymes for processing and fermentation Washing chemicals for industrial cleaning solutions With its high efficiency and broad stability, Celpolish P9000 also serves as a potential ingredient in eco-friendly washing formulations, contributing to cleaner and more sustainable industrial practices. Conclusion As the textile and detergent industries move toward greener, more efficient processes, Celpolish P9000 stands out as a powerful solution for bio-based textile processing and enzyme-driven cleaning technologies.Its performance, flexibility, and stability make it a preferred choice for manufacturers aiming for high quality and sustainability.

Description:Enhance laser finishing effects on indigo and sulphur-dyed denim with a specialized named Ecomagic Laser-Booster. Reduce laser power, protect elastane fabrics, and achieve brighter, sharper contrasts with this water-soluble solution from KDN Biotech. Keywords:Ecomagic laser booster, denim finishing chemicals, indigo denim laser finishing, sulphur black denim, elastane-safe laser booster, denim laser enhancement, water-soluble textile chemical, high-contrast denim finishing, energy-efficient laser finishing, KDN Biotech Advanced Laser Treatment Solutions for Denim and Stretch Fabrics Laser technology has revolutionized denim finishing by enabling precise wash effects, unique patterns, and consistent results without excessive water or chemical usage. To maximize these effects, a specialized laser treatment booster has been developed for indigo and sulphur-dyed denim, including fabrics with elastane content. Ecomagic Laser-Booster booster is a red liquid solution, water-soluble, and pH-optimized for denim applications. It is designed to enhance the laser effect, reduce energy consumption, and prevent fabric damage during high-intensity finishing processes. Key Features and Benefits ✅ Boosts laser impact on indigo, sulphur, or dischargeable dyes. ✅ Reduces laser power requirement, saving time and energy. ✅ Compatible with elastane fabrics, preventing tearing and distortion. ✅ Multiple application methods – spray, brush, sponge, or machine. ✅ Increases production efficiency by enabling faster, safer processing. ✅ Improves overall finish quality, providing sharper contrast and brighter effects. Typical Characteristics Property Description Composition Special chemical compound Appearance Red liquid pH (10 g/L solution) 2.0 – 4.0 Solubility Water-soluble Application Guidelines Dilute the booster with 0–50% water to prepare a 100–50% working solution. Apply onto garments via spray, sponge, or brush. Let the treated garments air-dry for 5–10 minutes. Apply laser finishing. Wash with detergent at 50–60°C to remove soot or residual color. Optional: Increase whiteness using hydrogen peroxide and soda/caustic soda solution: 2.5 g/L soda ash or 1 g/L caustic soda 3–5 g/L 50% hydrogen peroxide 40–50°C for 15–20 minutes Packaging & Storage Packaging: 25 kg/drum Storage: Store in a cool, dry place in a sealed container. Avoid sunlight. Shelf life: 12 months under good storage conditions. Safety Handling In case of skin or eye contact, rinse immediately with water for at least 15 minutes. Refer to the Material Safety Data Sheet (MSDS) for detailed handling instructions.

Description:Discover an advanced ozone bleaching activator ,Ecomagic OZ-A for indigo and sulphur denim. Improve bleaching efficiency, achieve brighter contrasts, and create salt-and-pepper or stone-wash effects with this eco-friendly, high-performance solution from KDN Biotech. Keywords:Ecomagic OZ-A, ozone bleaching activator, denim bleaching chemicals, indigo bleaching, sulphur denim washing, eco-friendly denim processing, ozone garment bleaching, sustainable washing chemicals, stone wash effect, salt and pepper look, textile auxiliaries, KDN Biotech Advanced Chemistry for Sustainable, High-Contrast Denim Finishes In modern denim finishing, ozone bleaching has become a leading sustainable method to achieve light shades, vintage looks, and unique fashion effects—without relying on harsh oxidizing agents. To maximize the performance of ozone treatments, using a specialized ozone bleaching activator is essential. Ecomagic OZ-A is designed for Indigo and sulphur-dyed denim, as well as garments dyed with dischargeable dyes. It enhances the bleaching effect under both wet and dry conditions, ensuring superior results with brilliant contrast and reduced fabric damage. How It Works By optimizing the interaction between ozone gas and dyed fibers, the activator accelerates the oxidation process, improving both the speed and uniformity of color removal. It can be applied through various systems—nebulization, dipping, spraying, or regular machines—offering flexibility across production setups. Once the fabric or garment is treated with this activator, ozone bleaching can be carried out immediately or at a later time without compromising the effect, providing convenience and process efficiency. Key Features and Benefits Boosts ozone bleaching performance on indigo and sulphur black denim. Versatile application methods – suitable for nebulization, dipping, and machine washing. Improves final wash appearance, delivering a brighter, cleaner contrast. Creates trendy “Salt & Pepper” or stone-wash looks with precision. Energy-efficient and eco-friendly, aligning with sustainable garment processing. Typical Characteristics Property Description Appearance Colorless to pale yellow liquid pH (10% solution) 4.0 – 7.0 Application Guidelines Recommended Process Steps: Apply suitable amount of activator solution to denim garment. Hydro extraction. Drying. Ozone application. Washing (optionally add detergent). Rinse thoroughly. Dosage:10 – 200 g/L, depending on the desired bleaching level and the strength of the ozone machine.Pre-trials on different fabric types are strongly recommended. Packaging & Storage Packaging: 25 kg/drum Storage: Store at or below 25°C in a sealed container. Avoid prolonged heat exposure to maintain product activity. Precautionary Measures Avoid inhalation of enzyme dust or mist. In case of skin or eye contact, rinse with water for at least 15 minutes and seek medical attention if necessary.

Description:Antibak 7X is a surfactant-based liquid anti-backstaining agent that prevents indigo re-deposition and protects Lycra elasticity during denim washing. It also serves as an after-rinse solution for stained garments. Learn more from KDN Biotech. Keywords:Antibak 7X, anti-backstaining agent, denim washing chemicals, indigo dye prevention, Lycra protection, surfactant-based anti-backstaining, enzyme-compatible washing chemical, stone washing solution, textile auxiliaries, KDN Biotech Smart Solution for Indigo Backstaining and Lycra Protection In denim laundry processing, controlling indigo backstaining is essential to achieve clean, high-contrast wash effects. Antibak 7X from KDN Biotech (Shanghai) Co., Ltd. is a highly effective surfactant-based liquid anti-backstaining agent specifically designed to prevent the re-deposition of indigo dye during desizing and stone-washing processes. Unlike conventional polymer or solid anti-backstaining agents, Antibak 7X provides excellent Lycra protection, ensuring that stretch fabrics retain their elasticity without bubbling or seam distortion — even under demanding enzymatic washing conditions. Why Choose Antibak 7X? Traditional rock-form anti-backstaining agents can cause elasticity loss, stitch bubbling, and inconsistent dye removal—especially when overdosed. Antibak 7X eliminates these issues while offering enhanced performance and versatility. Key Advantages: Superior indigo dye prevention – keeps denim bright, clean, and evenly washed. Lycra-safe formulation – prevents bubbling and loss of stretch in Lycra-containing garments. Effective stain repair – can be used for after-rinsing stained garments to restore wash quality. Excellent compatibility – works with amylase and cellulase enzymes in both acid and neutral conditions. Low foaming – ideal for drum-type washing machines. Easy to handle – water-soluble and stable across a wide pH range. Typical Characteristics Property Description Appearance White to light yellow liquid pH 5.0 – 7.0 Solubility Soluble in water Application Guidelines Antibak 7X can be used in multiple ways depending on the denim washing process: Application Dosage As part of liquid enzyme formulation 1–3% of total liquid solution Direct use in desizing or stone washing 0.2–1% o.w.f Diluted anti-backstaining formulation 1:1 to 1:15 dilution ratio Tip: For garments already stained after washing, Antibak 7X can be applied as an after-rinse remedy to remove residual indigo stains — a unique benefit not offered by traditional anti-backstaining agents. Packaging & Storage Packaging: 125 kg plastic drums Storage: Keep in a cool, dry place away from sunlight. Ensure the lid is tightly closed when not in use. Transport: Non-hazardous material – safe and easy to handle.