Hydrogen Silicone Oil for Textile Waterproofing

Guolan New Materials (Shandong) Co., Ltd. is one of the leading manufacturers and suppliers of hydrogen silicone oil for textile waterproofing in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to wholesale bulk top-quality hydrogen silicone oil for textile waterproofing from our factory.

Textile-grade high-hydrogen silicone oil (CAS: 63148-57-2) is specifically formulated for water-repellent finishing of cotton, polyester, nylon, and blended fabrics. With hydrogen content >1.58%, Si-H bonds react with fiber surface hydroxyl groups under organic tin or platinum catalysis to form a crosslinked silicone film that lowers surface tension, causing water to bead and roll off without wetting the fabric. Treated fabrics retain breathability and soft hand feel without yellowing or affecting dye fastness.

Compared to the general-purpose grade, the textile grade places particular emphasis on acid value control (<5 ppm) and low-molecular-weight volatiles, preventing fabric yellowing and equipment oil staining during high-temperature curing. The low-acid-value formulation protects dye color fastness, making it ideal for outdoor apparel, sportswear, and home textiles where strict color appearance requirements apply. Typical working bath concentration is 20–60 g/L with good bath stability, compatible with fluorescent brighteners, softeners, and PU resin finishes in the same bath.

Guolan New Materials produces textile-grade high-hydrogen silicone oil under our ISO 9001:2015-certified system. Every batch includes additional color stability testing and compatibility testing with common finishing agents. We provide end-to-end technical support from formulation recommendations to process scale-up, helping dyeing and finishing mills optimize pad-dry-cure processes to achieve AATCC 22 spray ratings of 90–100.

• Textile-Specific Yellowing-Free Formulation - Acid value strictly controlled below 5 ppm with low-volatile design. No yellowing during high-temperature curing (140–160°C) and no impact on dye color fastness. Especially suitable for water-repellent finishing of white and light-colored fabrics.
• High Hydrogen Content for Efficient Water Repellency - Hydrogen content >1.58% delivers high crosslink density. At just 30 g/L bath concentration, achieves AATCC 22 spray rating 90–100, fabric hydrostatic head of 150–300 mm, and water absorbency <20%.
• Preserves Fabric Hand Feel & Breathability - The crosslinked silicone film is thin and flexible. Treated fabrics remain soft and vapor-permeable without a "plastic" feel. By adjusting hydrogen content and catalyst dosage, the balance between water repellency and hand feel can be tailored.
• Excellent Process Compatibility - Can be co-applied in the same bath with fluorescent brighteners, amino silicone softeners, and PU resin finishes. Standard pad-dry-cure process is compatible, and spray or foam application methods are also supported across multiple dyeing and finishing lines.
• Full Technical Support - Our technical team provides formulation recommendations, catalyst selection (DBTDL organic tin or platinum), process parameter optimization, and troubleshooting. We support customers from laboratory trials through full-scale production.

Outdoor Apparel & Sportswear

Water-repellent finishing for jackets, ski wear, tents, and hiking gear. Treated fabrics deliver waterproof performance with breathability, meeting the dual demands of outdoor activity comfort and protection.

Home Textiles & Upholstery

Water and stain repellent treatment for curtains, sofa fabrics, bedding, and table linens. Does not alter fabric appearance or hand feel, enhancing the easy-care performance of home textiles.

Industrial Fabrics & Protective Clothing

Hydrophobic treatment for protective workwear, awnings, and truck covers. Improves weather resistance and waterproof performance of industrial textiles, extending service life.

Nonwovens & Glass Fiber Fabrics

Hydrophobic treatment for medical drapes and hygiene product nonwovens, as well as silicone water-repellent coatings for glass fiber fabrics and filter cloth.

• Textile-Specific No-Yellowing Formulation - Acid value controlled below 5 ppm with low-volatile design ensures zero yellowing during high-temperature curing (140–160°C). Color fastness on white, pastel, and dyed fabrics remains unchanged - a critical advantage for premium apparel and home textile customers.
• High-Efficiency Water Repellency at Low Dosage - Hydrogen content >1.58% delivers high crosslink density. At only 30 g/L bath concentration, it achieves AATCC 22 spray rating 90–100, fabric hydrostatic head 150–300 mm, and water absorbency below 20%. Lower dosage means lower cost per finished meter of fabric.
• Proven Same-Bath Compatibility - Formulated to co-apply stably with fluorescent brighteners, amino silicone softeners, and PU resin finishes in a single pad bath. This reduces processing steps, saves energy, and simplifies production line operations compared to multi-stage separate application.
• Full Process Support from Lab to Production - Our textile technical team provides catalyst selection guidance, pad-dry-cure parameter optimization, and on-site troubleshooting. We support customers from initial R&D trials through scale-up and routine manufacturing, minimizing production start-up risk.
• Flexible Supply for Dyeing Mills - Available in 200L drums and 1000L IBC totes, with OEM private label printing for mills that distribute finished fabric under their own brand. 5,000-ton annual capacity ensures uninterrupted supply even during peak finishing seasons.

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