D4 (Octamethylcyclotetrasiloxane)

D4 (Octamethylcyclotetrasiloxane) is a cyclic siloxane used as an intermediate in the production of various silicone polymers. It serves as a plasticizer and flexibilizer, enhancing the flexibility and durability of materials. Key applications include personal care products, electronics, textiles, and construction. D4 is valued for its low viscosity, thermal stability, and excellent solvency.