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Closed cell silicone foam has excellent waterproof and moisture-proof properties, suitable for static dustproof and waterproof sealing; **Not suitable for long-term immersion in water, long-term high-pressure immersion will still slowly seep water.
Silicone foam is a porous elastic material formed by foaming silicone raw materials, with tiny sealed pores inside; Ordinary silicone sheet is solid core without foam. Silicone foam is softer, has good compression resilience, and is lightweight. It excels in sealing, cushioning, insulation, and shock absorption; Solid core silicone sheet has higher hardness, stronger wear resistance, and pressure resistance.