Product Abstract
Hong Ye silicone rubber's buoyancy Foamed Silicone is a lightweight closed-cell Addition Curing Silicone developed for floatation and water sports applications. As a water-repellent RTV Silicone Foam with ultra-low density and stable closed-cell structure, this Silicone Sponge provides durable buoyancy without absorbing water, remaining flexible and resistant to saltwater, UV and aging. It is widely used for buoyancy aids, life jacket inserts, floating cushions, swim training boards, water sports mats and marine buoyancy padding. Matched with Mold Silicone for seamless shaping, this floatable Foaming Silicone Rubber delivers safe, lasting buoyancy for aquatic and outdoor products.

Product Overview
This buoyancy foamed silicone is engineered for aquatic environments where ordinary floatation materials fail: water absorption, saltwater aging, UV cracking and compression loss. The sealed closed cells of Liquid Silicone Foam keep air trapped for stable positive buoyancy, while the addition-cured silicone matrix resists seawater erosion and remains soft and elastic after long-term immersion. Different from EVA foam that absorbs water and loses buoyancy over time, this Silicone Sponge keeps floating performance and comfort season after season. With adjustable density and hardness, this RTV Silicone Foam can be shaped into thin comfortable pads or thick high-buoyancy blocks, making it a reliable Foaming Silicone Rubber for water sports and marine equipment.
Core Product Features & Advantages
Step-by-Step Usage Instructions

Application
Scenarios Buoyancy aids and life jacket inserts, swimming training boards and floats, floating cushions and pool mats, water sports protective padding, marine buoyancy blocks and outdoor water-resistant cushions. This high-stability Foamed Silicone provides safe, durable buoyancy for aquatic products.
Precautions
Avoid contact with cure-inhibiting substances such as nitrogen, sulfur, phosphorus, tin, lead, cadmium and mercury; store away from direct sunlight and high-temperature baking before curing.
Packaging & Storage
25 kg sealed drums, stored dry and cool with lids closed to preserve buoyancy foaming performance; shipped as non-hazardous cargo.

FAQ
Q1: Can this Silicone Sponge provide stable buoyancy?
A1: Yes, its closed-cell structure traps air for lasting positive floatation with no water absorption.
Q2: Does Foamed Silicone resist seawater and chlorine?
A2: Yes, the anti-corrosion Liquid Silicone Foam withstands saltwater, chlorine and UV without losing performance.
Q3: Can buoyancy pads be customized in shape and thickness?
A3: Yes, density and shape can be adjusted from thin comfortable mats to thick high-buoyancy blocks.
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