Frequently Asked Questions – Shin-Etsu Silicone KF-96-500CS (500 cs):

Q1: What is Shin-Etsu Silicone KF-96-500CS?

Shin-Etsu Silicone KF-96-500CS is a colorless, transparent dimethylpolysiloxane fluid with a viscosity of 500 centistokes (mm²/s) at 25 °C. It belongs to the KF-96 series and serves as a high-performance mold-release and lubricating silicone oil. 

Q2: What does “500 cs” mean?

“500 cs” denotes a kinematic viscosity of 500 centistokes measured at 25 °C. Higher centistoke values indicate a thicker fluid that adheres longer to mold surfaces, enhancing release performance and lubrication longevity.

Q3: What are the key specifications of KF-96-500CS?

Mold release for plastics, rubber and die-casting

Non-stick release agent in food processing equipment

Lubrication of synthetic fiber, textile and garment machinery

Anti-foaming and flow-aiding in coatings, inks and cosmetics

Insulating and hydrophobic coatings in electronics and electrical components

Low-temperature lubrication in vacuum and laboratory equipment

Q5: What performance highlights does it offer?

Excellent thermal stability across –50 °C to +315 °C

Outstanding low-temperature fluidity and anti-freeze performance

Superior electrical insulation and dielectric strength

High resistance to water, moisture and most chemicals

Low vapor pressure and high flash point for safer handling

Outstanding lubricity, defoaming and non-corrosive behavior

Hydrophobicity and mildew resistance not found in mineral oils

Q6: How does KF-96-500CS compare to other KF-96 series fluids?

The KF-96 line spans viscosities from 0.65 cs to 5,000 cs. KF-96-500CS sits in the mid-to-high range, offering a balance between flowability and durable film strength. KF-96L grades (0.65–5 cs) excel in spraying and fine lubrication, while KF-96H grades (6,000–1,000,000 cs) provide ultra-thick films. All KF-96 dimethyl fluids are completely miscible regardless of viscosity. 

Q7: Is KF-96-500CS electrically insulating and chemically resistant?

Yes. Its silicone backbone provides excellent dielectric properties, making it ideal for insulating applications. It also repels water and resists attack by acids, bases and solvents commonly encountered in industrial environments.

Q8: How do I apply KF-96-500CS as a mold release agent?

Thoroughly clean and dry the mold surface.

Apply a thin, even film of KF-96-500CS by brushing, wiping with a lint-free cloth or using a compatible spray (e.g., KF-96SP aerosol).

Allow a few seconds for the film to level and wet out the surface before starting the molding cycle.

Reapply periodically to maintain consistent release performance.

Q9: How should I store and handle KF-96-500CS?

Keep containers tightly sealed when not in use to prevent contamination and moisture ingress.

Store in a cool, dry place between 0 °C and 40 °C, away from direct sunlight and heat sources.

Avoid contact with strong oxidizing agents.

Q10: What safety precautions should I take?

Wear chemical-resistant gloves and safety goggles during application.

Ensure adequate ventilation to minimize inhalation of mist or aerosol.

Do not ingest; avoid prolonged skin contact.

Refer to the manufacturer’s MSDS for detailed handling, first aid and disposal guidelines.

Q11: What is the shelf life and packaging?

When stored under recommended conditions, KF-96-500CS remains stable for at least 1–2 years. Common packaging options include 1 kg cans, 16 kg cans and 200 kg drums.

Q12: Where can I purchase KF-96-500CS?

Check with QTE Technologies for pricing and availability.