250000㎡ Factory Area 90+ Press Machines & Equipments
Silicone Foam Manufacturer & Wholesale Supplier
Engineered high-temperature and flame-retardant silicone foam rolls, sheets, continuous strips, and precision die-cut gaskets. Operating from -60°C to +250°C with certified UL 94 V-0 flammability and ultra-low compression set (<5%) for EV battery packs, 5G electronics enclosures, aerospace, rail transit, and industrial heat sealing.
Precision Silicone Foam Manufacturing & Global Supply
Quanzhou Firefox New Material Co., Ltd. is a premier Chinese manufacturer of high-grade silicone foam and elastomeric materials. Combining advanced continuous foaming technology, high-purity polysiloxane compounding, and automated die-cutting lines, we supply mission-critical sealing, thermal barrier, and vibration dampening components to global Tier-1 automotive and industrial OEMs.
High-Purity Silicone Formulations
In-house platinum-cure and condensation formulation control delivering customized hardness (10–45 Shore 00), specific gravity, and flame-retardant chemistry.
Continuous Rolls & Sheets
Continuous tunnel foaming lines producing uniform cell structures from 0.8mm to 25mm thickness with tight gauge tolerances (±0.15mm).
Precision Converting & PSA Lamination
High-speed rotary die-cutting, laser cutting, slitting, and cleanroom acrylic/silicone pressure-sensitive adhesive (PSA) lamination.
IATF 16949 & ISO 9001 Certified Lab
Complete in-house testing for compression set, thermal aging, UL 94 vertical flammability, tensile strength, and dielectric breakdown.
State-of-the-Art Production & Clean Converting Facilities
Take an inside look at Firefox Foam's continuous foaming lines, automated CNC slitting machines, cleanroom lamination workshops, and international testing laboratories.
Three Production Bases Serving Global Tier-1 Industries
To ensure tariff optimization, resilient supply continuity, and localized fulfillment, Firefox Foam operates three specialized production facilities with comprehensive cleanroom converting and extrusion capabilities.
Primary R&D & Continuous Foaming Center
120,000 m² integrated manufacturing campus with high-temperature tunnel foaming lines, compounding laboratories, IATF 16949 certified testing, and high-speed converting.
Southeast Asia Export & Die-Cutting Facility
35,000 m² production and slitting hub offering direct export advantages, duty-free tariff access to North America/EU, and high-volume converted foam gasket supply.
Electronics & Automotive Component Center
Dedicated converting, PSA adhesive coating, and cleanroom die-cutting facility providing just-in-time (JIT) local delivery to global electronics and automotive manufacturing clusters.
What Is Silicone Foam? Engineering & Chemical Properties
Silicone foam (polysiloxane sponge) is an advanced elastomeric cellular material engineered by expanding high-purity liquid or gum silicone rubber into a flexible matrix. Its inorganic silicon-oxygen (Si-O-Si) chemical backbone delivers bond energy significantly higher than carbon-carbon (C-C) organic polymers.
This molecular architecture gives silicone foam unmatched thermal resilience (-60°C to +250°C), extreme flame retardancy (UL 94 V-0), zero halogen toxicity, and virtually indestructible resistance to ultraviolet radiation, ozone, and severe weathering.
Manufactured in both fine closed-cell configurations for hermetic IP67/IP68 sealing and semi-open cell structures for acoustic and thermal compression, silicone foam exhibits an ultra-low compression set (<5%).
Even after years under continuous compression at elevated operating temperatures, silicone foam returns to its original thickness, preventing seal failure and outlasting traditional EPDM, neoprene, and polyurethane foams by up to 5x in demanding environments.
Key Advantages of Firefox Industrial Silicone Foam
Designed for mission-critical applications where seal failure, outgassing, or flammability risks cannot be tolerated.
-60°C to +250°C Stability
Maintains full elasticity, flexibility, and sealing integrity across extreme temperatures without hardening, cracking, or softening.
Inherent Flame Retardancy
Meets UL 94 V-0 and EN 45545-2 (HL3) low-smoke, low-toxicity transit safety standards without halogenated additives.
Permanent Elastic Recovery (<5%)
Maintains consistent sealing force and spring-back recovery after thousands of thermal cycles and decades of bolted assembly clamping.
Ozone, UV & Weatherproof
Impervious to harsh solar UV, ozone oxidation, moisture ingress, salt spray, and extreme outdoor climate conditions (IP67/IP68).
High Dielectric Strength
Superior electrical insulation (>18 kV/mm) and thermal barrier properties preventing arcing in high-voltage EV battery and solar systems.
Low Outgassing & FDA Compliance
Non-toxic, odorless, low volatile siloxane content compliant with FDA 21 CFR 177.2600 and RoHS/REACH environmental mandates.
Engineered for High-Reliability Industrial Demands
Explore how our custom silicone foam sheets, continuous rolls, and precision die-cut parts perform in critical automotive, telecom, rail, and industrial sealing environments.
EV Battery Pack Sealing & Thermal Runaway Protection
UL 94 V-0 flame-retardant silicone foam compression pads between prismatic cells, pack enclosure perimeter IP68 gaskets, and high-voltage busbar thermal insulation barriers.
5G Telecom Enclosures & Outdoor LED Lighting Seals
Long-life weatherproofing gaskets for 5G telecommunication base station cabinets, solar PV inverters, and outdoor architectural luminaire housings with low closure force.
Rail Transit & Aerospace Fire-Safe Cushioning
Compliant with EN 45545-2 (HL3) and FAR 25.853 aviation fire codes. Low-smoke and non-toxic interior cushioning, HVAC duct sealing, and acoustic vibration isolators.
Industrial Heat Press & Lamination Pads
High-temperature resilient silicone sponge sheets and ironing pads for textile sublimation, solar module laminators, garment heat transfers, and composite curing autoclaves.
Silicone Foam Technical Data Sheet (TDS Matrix)
Standard mechanical, thermal, electrical, and flammability properties for Firefox Foam industrial and automotive grade silicone foams.
| Property | Test Standard | Typical Value / Specification |
|---|---|---|
| Polymer Base | Chemical Analysis | 100% High-Purity Polysiloxane (Silicone) |
| Cell Structure | Microscopy | Fine Closed-Cell / Semi-Open Cell |
| Density Range | ASTM D1056 / ISO 845 | 0.15 – 0.55 g/cm³ (150 – 550 kg/m³) |
| Hardness | ASTM D2240 | 10 – 45 Shore 00 / 5 – 25 Shore A |
| Operating Temperature | Continuous Service | -60°C to +250°C (-76°F to +482°F) |
| Intermittent Temperature Peak | Short-Term Exposure | Up to +300°C (+572°F) |
| Compression Set (25%, 22h @ 100°C) | ASTM D1056 | < 5.0% (Ultra-Low) |
| Tensile Strength | ASTM D412 | ≥ 0.45 – 1.2 MPa |
| Elongation at Break | ASTM D412 | 120% – 250% |
| Flammability Rating | UL 94 | UL 94 V-0 / HF-1 Certified |
| Rail Transit Fire Standard | EN 45545-2 | HL1 / HL2 / HL3 Compliant |
| Dielectric Strength | ASTM D149 | ≥ 18.0 kV/mm |
| Thermal Conductivity | ASTM C518 | 0.06 – 0.09 W/(m·K) |
| Water Absorption | ASTM D1056 | < 1.5% by weight (Closed-Cell) |
| Environmental & Food Grade | FDA / EU | FDA 21 CFR 177.2600, RoHS, REACH Compliant |
Silicone Foam vs. Alternative Gasketing Elastomers
Compare silicone foam's thermal, environmental, and compression performance against conventional EPDM sponge, CR neoprene, PU foam, and EVA.
| Material | Temp Range | Flame Rating | Compression Set | UV / Ozone Life | Primary Use Cases |
|---|---|---|---|---|---|
| Silicone Foam | -60°C to +250°C | UL 94 V-0 | <5% (Superior) | >20 Years | EV batteries, 5G electronics, rail, aerospace, heat press |
| EPDM Sponge | -40°C to +120°C | UL 94 HB / V-2 | 15% – 25% | 10 – 15 Years | Automotive door seals, HVAC weatherstripping, building facades |
| CR Neoprene Foam | -30°C to +100°C | UL 94 HF-1 / V-0 | 20% – 30% | 5 – 8 Years | Marine hatch seals, oil-resistant gaskets, wetsuits |
| Polyurethane (PU) Foam | -30°C to +90°C | UL 94 HF-1 | 10% – 20% | 3 – 5 Years | Footwear insoles, acoustic damping, furniture cushioning |
| EVA Foam | -20°C to +70°C | Standard Combustible | 30% – 50% | 2 – 4 Years | Sports mats, footwear midsoles, protective packaging |
Silicone Foam Grades & Formulation Options
We formulate tailored density and firmness grades to match exact compression-deflection curve specifications.
Ultra-Soft Low Closure (10-20 Shore 00)
Engineered for lightweight plastic and thin-wall sheet metal enclosures requiring watertight sealing under very low clamping force.
Medium-Firm General (20-35 Shore 00)
The standard choice for industrial gaskets, electrical control enclosures, outdoor LED fixtures, and EV battery pack perimeter seals.
High-Density Firm (35-45 Shore 00)
High-load compression cushions, heavy-duty mechanical vibration dampening, and high-pressure autoclave sealing applications.
UL 94 V-0 & Rail EN 45545 HL3
Certified low-smoke, zero-halogen, flame-blocking silicone foam formulated for transit, aerospace, and energy storage systems.
7-Stage Precision Silicone Foam Manufacturing Process
From high-purity siloxane compounding to continuous vulcanization and precision converting.
Precision Compounding
Liquid silicone rubber (LSR) or gum base blended with platinum catalysts and flame retardants in high-shear vacuum mixers.
Continuous Extrusion & Coating
Extruded through precision slot dies onto carrier release liners ensuring exact thickness control across continuous web rolls.
Multi-Zone Tunnel Foaming
Thermal blowing agents activate inside multi-stage ovens, creating uniform, microcellular cell structures under automated heat profiles.
Secondary Post-Curing
Extended high-temperature post-curing cycle eliminating volatile cyclic siloxanes and stabilizing low compression set properties.
Cleanroom PSA Lamination
Applying high-tack acrylic, silicone, or heat-resistant adhesive backing with PET or glass fiber reinforcement scrims.
CNC Slitting & Die-Cutting
Rotary die-cutting, laser cutting, kiss-cutting, or high-speed slitting into precision custom-dimension gaskets and tapes.
100% Quality Inspection
Automated optical gauge thickness measurement, compression load deflection (CLD) testing, and cleanroom vacuum packaging.
Traceable Export Packing
Moisture-barrier wrapping, barcoded lot traceability, protective edge boards, and ISPM 15 heat-treated export palletizing.
Custom Converting, Adhesive Backing & Die-Cutting Services
Adhesive Backing (PSA) & Reinforcement
We provide cleanroom lamination with world-class pressure-sensitive adhesives (3M, Nitto, Crown, and custom high-temp formulations):
- High-Temperature Acrylic PSA: Continuous adhesion up to 150°C with superior shear resistance.
- Pure Silicone PSA: Operates across the full silicone foam range (-50°C to +200°C).
- Fiberglass / PET Scrim Reinforcement: Eliminates elongation during manual assembly and robotic placement.
- Differential Adhesive Systems: Silicone adhesive on foam side, high-tack acrylic on substrate side.
Precision Form Factors & CNC Die-Cutting
Deliverables customized to match your assembly line feeding and robotic picking requirements:
- Continuous Master Rolls: Widths up to 1000mm, continuous roll lengths from 10m to 100m.
- Precision Slit Tapes: Custom roll widths from 5mm upwards with release liner tabs for fast peeling.
- Die-Cut Finished Gaskets: Tight tolerances (±0.2mm) with multi-hole patterns and hollow geometries.
- Kiss-Cut Parts on Rolls: Convenient continuous roll feeding for high-speed automated dispensing.
Rigorous Laboratory Testing & Automotive Standards
Every silicone foam master roll undergoes comprehensive batch testing in our in-house ISO/IEC 17025 compliant lab.
Compression Set Testing
Continuous deflection testing at 100°C and 150°C for 22 hours verifying permanent deformation under <5%.
Vertical Flammability Chamber
In-house UL 94 vertical test rig measuring afterflame time (<10s) and drip ignition prevention.
Accelerated Oven Aging (250°C)
Testing tensile retention and hardness stability after 1,000+ hours in forced-air convection chambers.
High-Voltage Insulation Test
Precision spark and dielectric breakdown testing verifying insulation up to 25 kV for EV battery applications.
Certified to Global Safety & Automotive Standards
Our silicone foam materials are fully certified and documented for international compliance across North America, Europe, and Asia-Pacific.
IATF 16949 / ISO 9001
Stringent automotive quality management systems ensuring zero-defect PPAP Level 3 documentation.
UL 94 V-0 / HF-1
Certified flame-retardant performance under Underwriters Laboratories standard for electrical devices.
EN 45545-2 (HL3)
Highest hazard level compliance for European and global rolling stock fire, smoke, and toxicity safety.
RoHS, REACH & FDA
Free of SVHC, heavy metals, halogenated flame retardants, and compliant with FDA 21 CFR 177.2600.
Cleanroom Packaging & Damage-Free Global Logistics
Clean Protective Packaging
To prevent particulate contamination and moisture exposure during transoceanic shipping, all silicone foam goods are packed under strict protocols:
- Moisture-Barrier Polybags: Vacuum-sealed or heat-sealed with desiccants inside heavy-duty cartons.
- Core Protection: Solid 3-inch or 6-inch plastic/cardboard cores preventing inner roll deformation.
- Interleaf Release Liners: Non-stick protective paper preventing blocking between high-tack silicone layers.
Export Logistics & Lead Times
Reliable export shipping directly from Xiamen, Shanghai, Surabaya (Indonesia), or Ho Chi Minh (Vietnam):
- Standard Samples: Fast dispatch in 3–5 business days via DHL / FedEx.
- Production Lead Time: 10–15 business days for standard master rolls and die-cut parts.
- Palletization: Fumigation-free plywood or heat-treated ISPM 15 pallets with corner guards and shrink-wrap.
Silicone Foam Technical Specification Checklist
To accelerate sampling and receive an exact price quotation, provide the following parameters when submitting your RFQ.
Dimensions & Form
Specify thickness (0.8–25mm), roll width/length, cut-to-size sheet dimensions, or attach CAD/DXF gasket drawings.
Density & Hardness
Target density (0.20–0.50 g/cm³) or compression deflection range (Shore 00 / Shore C / CFD @ 25%).
Adhesive Requirements
Adhesive backing needed (None / 1-side / 2-side), adhesive type (High-temp Acrylic vs. Silicone), and release liner.
Certifications & Standards
UL 94 V-0 flame rating, EN 45545-2 HL3, FDA food contact, outgassing limits, or automotive PPAP requirements.
Eco-Conscious Chemistry & Environmental Responsibility
Silicone is fundamentally derived from silica (quartz sand), reducing reliance on petroleum fossil fuel feedstocks. Firefox Foam employs non-halogenated flame retardants and low-energy thermal recovery loops throughout continuous foaming operations.
Our cured silicone foam products contain zero ozone-depleting substances (ODS), zero phthalates, and zero heavy metals. Their extraordinary 20+ year service lifetime prevents frequent replacement waste in industrial machinery and renewable energy installations.
Real-World Engineering Case Studies
EV Battery Pack Thermal Barrier
Supplied custom UL 94 V-0 silicone foam compression pads for a Tier-1 EV battery maker. Zero sealing degradation observed after 3,000 thermal shock cycles (-40°C to +85°C), preventing thermal runaway propagation between cell modules.
Outdoor 5G Enclosure IP68 Gasket
Engineered low-closure-force continuous silicone foam strips with fiberglass scrim for outdoor 5G telecom cabinets. Maintained hermetic IP68 water sealing across 5 years of intense coastal UV and salt spray exposure without compression loss.
High-Speed Rail HVAC Fireproof Gasket
Delivered EN 45545-2 HL3 certified low-smoke silicone foam duct seals for high-speed train HVAC systems. Achieved full transit fire safety compliance while reducing interior acoustic transmission by 6 dB.
Technical Documents & Test Reports
Request complete engineering reports and compliance documentation directly from our technical sales team.
- Silicone Foam Complete Technical Data Sheet (TDS)
- UL 94 V-0 / HF-1 Flammability Test Certificate
- EN 45545-2 (HL1/HL2/HL3) Rail Transit Fire Report
- ASTM D1056 Long-Term Compression Set Report
- Automotive PPAP Level 3 Quality Documentation Package
- RoHS 3 (EU 2015/863) & REACH SVHC Compliance Statement
- FDA 21 CFR 177.2600 Food Contact Assessment
- Dielectric Breakdown & High-Voltage Insulation Report
Silicone Foam Engineering & Sourcing FAQ
Detailed answers to the most common questions regarding silicone foam properties, applications, adhesive backing, and wholesale procurement.
Partner with Firefox Foam for Precision Silicone Solutions
Request Free Silicone Sample Swatch
Get a comprehensive sample kit containing various thicknesses (1mm to 10mm), firmness grades (Soft, Medium, Firm), and adhesive backing options for your engineering validation.
Request Sample KitSubmit RFQ & Custom Gasket Drawing
Send your 2D/3D CAD drawings (DXF, DWG, STEP) or annual volume requirements to receive an itemized factory-direct quote and DFM feedback within 24 hours.
Submit Drawing & RFQRelated High-Performance Foams from Firefox
Ready to Engineer Your Custom Silicone Foam Gaskets?
Contact Firefox Foam's engineering team today for technical data sheets, PPAP support, and volume wholesale pricing.
As one of the most experienced silicone foam suppliers in China, we have world-leading production equipment and strong manufacturing capabilities. Please rest assured to wholesale customized silicone foam from our factory. For price consultation, contact us.