Hydrated Silica

Description

1. Product Overview

Hydrated Silica (SiO₂·nH₂O) is a high-absorption amorphous silica functional filler. Primarily used in tire and industrial rubber compounding to improve tear strength, abrasion resistance, and wet traction. Its key value proposition is replacing carbon black for lower rolling resistance and better dispersion. Strategically, it enables green tire production and regulatory-compliant industrial formulations in a tightening sustainability market.

2. Key Specifications & Technical Characteristics

• Chemical composition: Amorphous Silicon Dioxide (SiO₂) ≥ 92%, moisture content 4–7%

• Purity level: 98.5% minimum (industrial grade), low heavy metals compliance

• Physical characteristics: White micro-pearl or powder; BET surface area 160–200 m²/g; mean particle size (D50) 2–10 µm; tapped density 0.25–0.35 g/cm³

• Packaging options: 25 kg multi-wall kraft bags, 600–1000 kg jumbo bags, or bulk pneumatic tanker

• Shelf life: 24 months when stored in dry, sealed conditions away from humidity and strong alkalis

3. Core Industrial Applications

• Tire manufacturing: Used in passenger and truck tire tread compounds to lower rolling resistance (fuel efficiency) and improve wet grip compared to carbon black alone.

• Industrial rubber goods: Enhances abrasion resistance in conveyor belts, hoses, and seals with better heat buildup control than traditional fillers.

• Agrochemical carriers: Acts as a high-absorption flow conditioner for pesticides and animal feed premixes, outperforming clay due to lower dust and higher load capacity.

• Oral care (specialty grade): Abrasive cleaner in toothpaste, replacing precipitated calcium carbonate with milder enamel wear.

Efficiency advantage: Reduces cure time by 10–15% vs. untreated silicas. Cost advantage: less required loading to achieve target reinforcement modulus.

4. Competitive Advantages

• Quality consistency: Statistical process control (SPC) ensures <2% batch-to-batch variation in BET and particle size.

• Supply reliability: Dual-production line redundancy with 99.5% on-time delivery track record over 5+ years.

• Logistics capability: Direct container loading from plant to port; lead time 10–14 days FOB major global ports.

• Price competitiveness: 6–8% below EU and North American precipitated silica benchmarks at same purity tier.

• Sustainability: Non-hazardous waste profile; manufactured with 30% recycled water loop and neutral pH effluent treatment. Full technical data sheets (TDS, SDS) available in 6 languages.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): BULK 20 MT (metric tons) per product grade

• Loading capacity: 25–27 MT per 20-foot standard container (depending on bulk density and packaging)