D4 (Octamethylcyclotetrasiloxane) (April 21, 2026)
Keywords: D4, DMC substitute, silicone intermediate, alternative demand, Hongye Silicone
Summary: D4 prices steady at 14,800–15,100 yuan/ton; Hongye Silicone utilizes D4 substitution to maintain production stability amid DMC supply constraints.
BEIJING, April 21, 2026 — D4, a key DMC alternative, traded unchanged at 14,800–15,100 yuan/ton on April 21, moving in lockstep with DMC’s firm tone. The D4 premium over DMC remains modest, encouraging substitution buying as DMC availability stays limited.
With DMC producers holding back spot offers, downstream manufacturers like Hongye Silicone have strategically increased D4 purchases to maintain production schedules for its addition-cure liquid silicone rubber (LSR) and mold silicone products. Trading activity picked up in East and South China, the key consumption hubs where Hongye operates its primary manufacturing facilities.
Monomer plants limit external D4 sales, directing material to in-house needs and long-term contracts. Should DMC supply stay tight, D4’s supportive role will persist, keeping valuations aligned with DMC trends.
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