High-Stability Addition Curing Liquid Silicone Foam
author: Hellen
2026-09-01
Product Summary
Liquid silicone foam is a two-part addition curing RTV2 silicone rubber, foamed chemically by mixable A and B liquid components. It features 2–7 times high foaming ratio, uniform pores, low shrinkage and stable flexibility from -65℃ to 200℃. Eco-friendly and easy to operate, it suits industrial sealing and soft product manufacturing. We also provide mold making silicone, pad printing silicone, electronic potting compound, human body silicone and robot silicone.
Product Overview
Also known as foamed silicone and silicone sponge, liquid silicone foam is an eco-friendly dual-component silicone material cured by heating and chemical foaming. With lightweight texture, soft hand feel and no finished product thickness limitation, it supports flexible molding and simple processing. It delivers stable physical performance and zero harmful substances, becoming a reliable raw material for industrial flexible accessories and daily soft products for global B2B manufacturers.

Technical Specifications
This industrial addition curing silicone adopts standard 1:1 mixing ratio for A and B components. It realizes controllable 2–7 times volume expansion with ultra-low linear shrinkage and excellent rebound performance. It maintains long-term stable soft elasticity within -65℃ to 200℃ temperature range. Featuring outstanding chemical inertness, insulation and flame retardancy, the material is non-toxic, non-corrosive and radiation-free, fully meeting global industrial safety standards.
Product Features & Competitive Advantages
Different from ordinary foam materials, our liquid silicone foam owns uniform foaming structure and high stability without migration or atrophy after long-term use. It integrates excellent heat resistance, cold resistance, electrical insulation and flame retardant properties, adapting to complex working conditions. The eco-friendly formula supports body-contact applications. Strict batch quality control ensures consistent stability, matching the premium quality of our mold making silicone and pad printing silicone, helping clients reduce defective rates and production costs.
Application Scenarios & Commercial Value
It is widely used to produce industrial gaskets, sealing strips, foam boards and printing sponge rollers. It also manufactures automotive interior parts, sofa cushions, silicone insoles, kids pillows and fitness equipment components. Moreover, it serves as ideal filling material for robot silicone crafts. Its simple processing workflow improves production efficiency, shortens processing cycle and reduces raw material waste for global buyers.

Step-by-Step Usage Instructions
1. Stir component A and component B separately to eliminate material stratification caused by long-term storage. 2. Mix A and B glue at 1:1 ratio and stir evenly for 2–3 minutes for full blending. 3. Conduct vacuum defoaming and use the mixed liquid immediately to avoid premature coagulation.
Certifications & Compliance
The product complies with ISO9001, CE and RoHS international quality and environmental standards. Every batch undergoes strict pre-production testing and pre-shipment inspection to guarantee stable global industrial application.
Customization Options
Customizable foaming ratio, hardness and formula parameters are available to meet personalized production demands of different industries and processing technologies.
Packaging & Storage Notes
Standard packaging: A component 25KG/200KG/250KG drums; B component 25KG/200KG drums. Transported as non-dangerous goods. Store in sealed, cool and dry places. Avoid sunlight exposure, high-temperature baking and contact with water, sulfur, phosphorus and heavy metal impurities.

FAQ
Q1: Why does addition curing liquid silicone foam fail to cure?
A1: This platinum-cured foam silicone is sensitive to impurities. Contact with water, sulfur, tin and heavy metal substances will inhibit curing. High-temperature baking and long-term sun exposure will also damage structural stability.
Q2: What is your core advantage?
A2: We provide stable 2–7 times controllable foaming, uniform pores, zero shrinkage migration and complete certifications, with stable batch quality same as our full-series silicone products.
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