KH-303 (Silane coupling agent)
Code: KH-303
Category: Silane coupling agent
CAS: 163131-89-3
Origin: Made In China
As one of the leading KH-303 (Silane coupling agent) manufacturers and suppliers in China, our products have good reputation in the market. KH-303 is widely used in paint, adhensive, composite industries.
Contact us
- No.420 Zhonghua Road,Qinghuai District, Nanjing,China 210001
- 008618005174481
- Mr.Sam
- sales@nanjingchem.com
Product Introduction
KH-303 Silane Coupling Agent
1. Product Introduction
2. Product Specifications
| Item | Standard Value |
|---|---|
| Chemical Name | Dodecylmethyldimethoxysilane |
| CAS No. | 163131-89-3 |
| Appearance | Colorless transparent liquid |
| Purity (GC) | ≥99.0% |
| Density (20℃, g/cm³) | 0.850 ~ 0.870 |
| Refractive Index (n₂₅ᴰ) | 1.424 ~ 1.428 |
| Moisture Content | ≤0.10% |
| Solubility | Miscible with common organic solvents; Insoluble in water |
3. Product Features & Applications
Key Features
- Excellent hydrophobic & water-repellent performance, form durable waterproof layer on inorganic material surface
- Good lubrication and mold release effect for rubber, plastic and composite materials
- Improve dispersion of mineral fillers in PP, PE and other non-polar resins
- Low volatility, stable storage performance under sealed condition
- Effectively enhance weather resistance, anti-fouling property of coatings and building materials
- Low dosage, obvious modification effect, friendly processing operability
Main Application Fields
- Building waterproof materials: Surface treatment of cement, mortar, stone, silica powder to prepare long-acting hydrophobic agent
- Plastics & rubber industry: Internal lubricant, demolding agent; surface modification of inorganic fillers to improve filler dispersion
- Coating industry: Anti-fouling additive, hydrophobic modifier for solvent-based coatings
- Textile finishing agent: Impart water repellency, softness and wrinkle resistance to fabrics
- Glass, inorganic powder modification: Reduce surface energy, prevent powder agglomeration
4. Packaging, Storage & International Shipping Information
Packaging
- Bulk cargo: 210L iron drum (Net weight: 180kg/drum)
- Small package: 25L plastic pail (Net weight: 20kg/pail)
- Sample package: 100ml / 500ml sealed glass bottle
Storage Conditions
Store in cool, dry, well-ventilated warehouse. Keep tightly sealed, avoid direct sunlight, high temperature environment and contact with moisture, water, acid and alkali. Keep away from fire and ignition sources.
Shelf life: 12 months under original sealed packaging.
International Marine Transportation & Hazard Classification
- UN Number: UN 1993
- Proper Shipping Name: Flammable liquid, n.o.s. (Dodecylmethyldimethoxysilane)
- IMDG Code compliant for ocean freight.GHS hazard labels shall be pasted on all packages. We provide complete MSDS (SDS) conforming to global GHS standard for customs declaration.
Reminder: All export packages pass UN packaging test. Relevant dangerous goods documents can be supplied together with shipment.
5. Company Introduction
Founded in 2001, we are one of China’s leading manufacturers and suppliers of silane coupling agents and functional organosilicon chemicals.
Our factory covers an area of 100 acres, equipped with five professional automated production lines for various silane series products.
- Production process optimization of KH-303 silane coupling agent and similar silane products
- Complete set of quality inspection and testing methods for finished silane products
- Treatment technology of waste gas, waste liquid and solid waste generated in production
6. Frequently Asked Questions (FAQ)
Q1: What is KH-303 silane coupling agent?
A: KH-303 is long-chain alkyl silane coupling agent (Dodecylmethyldimethoxysilane). It works as surface modifier to build organic-inorganic interfacial bonding, mainly used for waterproof modification, filler treatment, mold release agent and coating additives.
Q2: What specifications of KH-303 can you provide?
A: Standard grade purity ≥99.0%. We accept customized technical indicators according to customers’ formulation requirements. Standard packages include 25L pail and 210L iron drum. Sample bottles are available for lab evaluation.
Q3: What export advantages can you offer for international trade?
A:
- Multiple acceptable payment terms: T/T, L/C at sight and other negotiable methods
- Free samples available for quality testing (buyer undertakes freight cost)
- Support trial orders before formal mass cooperation
- Provide complete documents: GHS-compliant MSDS, COA (Certificate of Analysis), commercial invoice, packing list and dangerous goods shipping materials
Q4: What is your company positioning?
A: We are one of the major manufacturers and suppliers of silane coupling agents located in China. We focus on independent R&D and factory direct supply of organosilicon functional chemicals, providing stable high-quality KH-303 and other silane products to global industrial buyers.
Q5: How long is your production & delivery lead time?
A: For standard KH-303, we maintain continuous inventory. Normally goods can be ready within 7~15 working days after receiving deposit. We can arrange faster shipment for urgent orders.
Q6: Can I get technical support after purchasing?
A: Yes. Our technical team can provide guidance on product adding method, mixing process and formulation reference according to your application scenarios.
