Dimethicone
- CAS Number: 63148-62-9
- Chemical Formula: (C2H6OSi)n
- MOQ: 1000KG
- Shelf Life: 2 years
- Synonyms: Polydimethylsiloxane, Dimethylsilicone, Silicones, Dimethyl
Product Description
What Is Dimethicone?
Polydimethylsiloxane (PDMS), another name for dimethicone, is a kind of silicone oil that is frequently used in industrial settings, personal care items, and cosmetics. The liquid is odorless, colorless, and transparent, and it has a silky, smooth texture. Dimethicone provides excellent moisturizing, anti-foaming, and anti-oxidant properties. It forms a barrier on the skin to retain moisture and protect against environmental damage, making it a popular ingredient in lotions, shampoos, and conditioners.
Dimethicone is synthesized by the polymerization of dimethylsiloxane monomers. The process involves the hydrolysis of chlorosilanes or siloxane derivatives in the presence of water and catalysts. The resulting compound is a stable, long-chain silicone polymer, which can be customized for various viscosities by controlling the molecular weight during production. Dimethicone’s versatility and compatibility with other ingredients make it a staple in the formulation of many cosmetic and personal care products.
Related Parameters:
| Item | Standard |
| Appearance | Colorless, transparent, liquid |
| Viscosity (25℃, mPa.s) | 350 ± 20 |
| Flash point (℃) | ≥ 290 |
| Refractive index (25℃) | 1.4020 – 1.4040 |
| Volatile content (150℃, 3h, %) | ≤ 1.0 |
Recommended Dosage of Dimethicone:
| Applications | Dosage |
| Personal Care Products | 0.1% – 5% |
| Hair Care Products | 0.5% – 5% |
| Skin Care Products | 0.5% – 3% |
| Cosmetic Products | 1% – 5% |
| Antiperspirants & Deodorants | 0.5% – 3% |
| Makeup | 0.5% – 2% |
| Shaving Creams & Gels | 1% – 3% |
| Lubricants and Greases (Industrial) | 1% – 10% |
| Polishes and Surface Coatings | 0.5% – 2% |
| Paints and Coatings | 0.5% – 1% |
| Rubber and Plastics (Industrial) | 0.5% – 2% |
| Textiles (Industrial) | 0.1% – 1% |
| Automotive Applications (Industrial) | 0.5% – 2% |
Dimethicone Has Wide Range of Uses:
1. Personal Care and Cosmetics
Dimethicone is widely used in skincare, haircare, and cosmetics like lotions, shampoos, conditioners, and makeup products. By adding a smooth, silky finish without a greasy feel, it improves the texture. It locks in moisture and creates a barrier, making it ideal for sensitive and dry skin, while also improving the spreadability of products.
2. Hair Care
Dimethicone is commonly added to shampoos, conditioners, and hair serums. It smooths hair, controls frizz, and adds shine. By forming a protective layer around hair strands, it helps prevent moisture loss and protects against damage from environmental factors and heat styling, leaving hair healthier and more manageable.
3. Industrial Applications
Used in lubricants, greases, and coatings for machinery, Dimethicone offers lubrication, reduces friction, and prevents wear and tear on parts. Its water- and moisture-resistant properties help protect industrial components from corrosion, improving the efficiency and longevity of machines and products.
4. Antiperspirants and Deodorants
Dimethicone is found in antiperspirants and deodorants, offering a smooth, non-sticky application. It regulates perspiration and moisture while giving the skin a soothing feel. Its soothing properties also prevent irritation, allowing the product to glide on effortlessly, leaving skin feeling dry and fresh.
5. Polishes and Surface Coatings
In automotive, furniture, and electronics polishes, Dimethicone imparts a glossy, smooth finish. It protects surfaces against stains, dampness, and filth while also improving their appearance. Dimethicone makes surfaces easier to clean and maintain, adding durability and long-lasting shine to polished items.
User Asked Question:
Q: What distinguishes silicone oil from dimethicone?
A: Dimethicone is a specific type of silicone oil that is thicker and more viscous, providing longer-lasting moisture and a smoother texture. Silicone oil, a broader category, can have varying viscosities and volatility and is often used to improve the spreadability and lightweight feel of products. Dimethicone offers more controlled, long-lasting effects.
