Ultimate Seal Protection with Advanced Foamed Silicone Solutions

• Customization: Available
• Material: Organic Silicone
• Application: Household, Medical, Industrial, Agricultural
• Model NO.: DC
• Certification: ISO, REACH, RoHS
• Transport Package: Carton + Pallet
• Specification: customized
• Trademark: Dachuang Kehua
• Origin: China
• HS Code: 3910000000
• Production Capacity: 1000000 Sqm/Week
• Package Size: 140.00cm * 100.00cm * 120.00cm
• Package Gross Weight: 300.000kg

Product Description

Seal. Protect. Perform. The Power of Advanced Foamed Silicone

At Dachuang Kehua, we leverage the full potential of advanced foamed silicone materials to deliver high-performance solutions that seal, protect, and perform under the most demanding conditions. Engineered with precision, our silicone foams combine lightweight structure, durability, and exceptional resistance to heat, moisture, and environmental stress.

Whether your application requires IP-rated sealing, thermal insulation, impact absorption, or flame-retardant protection, our materials are designed to meet the exacting standards of industries such as automotive, electronics, aerospace, rail transit, and industrial machinery.

From custom die-cut gaskets and adhesive-backed foam pads to precision-molded components, Dachuang Kehua offers scalable, application-specific solutions. With robust quality control and deep technical expertise, we empower our customers to develop longer-lasting, higher-performing products that meet global performance and regulatory requirements.

Key features and benefits

Flame Resistant  – Meets UL94 V-0 at 1.5 mm thickness
Sealing Performance – Smooth skin surface provides excellent IP67 sealing capability 
Compliant with Global Standards  – NFPA 130 (USA) & EN45545-2 (EU Rail Standards)
Low Outgassing  – Low smoke, low toxicity, ideal for sensitive electronic and confined environments
Ultra Low Compression Set – Maintains shape and sealing force over time
Minimal Water Absorption – Reliable in humid or wet environments
Weight Efficient – Lightweight structure reduces system mass

 

While production material

silicone foam pad

sheet roll material

Technical Specifications

(Custom configurations available upon request.) 

Property	value
Material Type	Silicone Sponge
Cell Structure	Closed Cell
Density(BS EN ISO 845, ASTM D3574)	19.4 lbs/ft³ (310 kg/m³)
Compression Stress @ 25% Strain(ASTM D1056)	5.8 psi
Elongation to Failure(BS EN ISO 1798, ASTM D412)	90%
Compression Set(22 hrs @ 158°F, 50%)	<1% (BS EN ISO 1856)
Thermal Conductivity(DIN EN 993-15)	0.099 W/m·K
Flame Rating(UL94)	UL94 V-0 @ 1.5 mm thickness
Ozone Resistance	Yes
UV Resistance	Yes

Production activities

Breif introduction to Silicone Foam Production

Silicone foam production involves transforming liquid or solid silicone compounds into a lightweight, compressible, and resilient material. Through advanced processing techniques, the silicone is expanded into a soft, spongy structure—either closed-cell or open-cell—tailored to specific application needs. Renowned for its exceptional thermal stability, weather resistance, electrical insulation, and cushioning properties, silicone foam is widely utilized across industries including automotive, electronics, aerospace, construction, medical, and telecommunications.

Strictly controlled processing

Formulation:

A customized silicone rubber base is mixed with curing agents, blowing agents (foaming agents), and additives (e.g., flame retardants, pigments, conductive fillers).
The formulation is tailored to meet specific physical and chemical properties.
Mixing:

The ingredients are thoroughly blended using high-shear mixers to ensure uniform dispersion of all components.
Precise control over viscosity and reactivity is maintained.
Foaming and Curing:

The mixed compound undergoes a foaming reaction, creating gas bubbles that expand the silicone.
Simultaneously, the silicone begins to cure (crosslink), locking the foam structure in place.
This process can be conducted through:

Batch Molding (compression or transfer molding)
Continuous Extrusion
Liquid Injection Molding (LIM) for liquid silicone rubber (LSR) foam
Post-Curing (if needed):

The foam may be post-cured in an oven to remove volatile by-products and enhance mechanical and thermal properties.
Cutting and Shaping:

The cured silicone foam is cut, die-cut, or fabricated into sheets, strips, rolls, or customized gaskets according to the end-use requirements.
Quality Control:

Rigorous testing is performed for density, compression set, elongation, flammability, thermal conductivity, and other properties to ensure consistent performance.

Quality control 

Dachuang Kehua – Quality Control Methods & Processes
At Dachuang Kehua, we implement a rigorous quality control system to ensure consistent performance, safety, and reliability in our foamed silicone products.

1. Raw Material Inspection
All raw materials are sourced from certified suppliers and tested for purity, consistency, and traceability before use. Retention samples are stored for future reference.

2. In-Process Control
During mixing and foaming, temperature, ratios, and expansion rates are closely monitored. Visual checks are performed to detect bubbles, discoloration, or surface defects. Real-time measurements ensure dimensional accuracy and uniform density.

3. Laboratory Testing
Our QC lab tests all batches to international standards:

Density (ISO 845 / ASTM D3574)
Compression Set (ISO 1856)
Compression Stress (ASTM D1056)
Elongation (ISO 1798 / ASTM D412)
Thermal Conductivity (EN 993-15)
Flame Resistance (UL94 V-0 / EN45545-2)
Water Absorption, UV/Ozone Resistance
4. Final Product Inspection
Each product undergoes visual and dimensional checks. Adhesive-backed parts are tested for peel strength. Approved products are labeled with QC marks and batch numbers.

5. Packaging QC
Products are packed in clean, moisture-resistant packaging. Labels include product name, lot number, date, and handling instructions.

6. Traceability & Records
Complete production data is recorded for each batch, including raw materials, process parameters, test results, and shipping logs.

7. Continuous Improvement
We gather customer feedback, conduct regular audits, and provide team training to maintain quality excellence.

Packaging & Shipping

Properly packing

Timely delivery

1. Cleanroom or Dust-Free Packing Area
Perform final packing in a clean or controlled environment to prevent contamination from dust, debris, or moisture.
Wipe down foam surfaces (if required) to remove loose particles.

 
2. Primary Protection – Inner Packaging
For sheets, pads, or rolls:

Stack neatly and separate layers with release liners or PE film to prevent adhesion or surface damage.
Use plastic wrap, PE bags, or vacuum-sealed pouches for moisture and dust protection.
For die-cut gaskets or CNC parts:

Place parts in anti-static trays, foam layers, or individual plastic bags depending on the sensitivity and shape.
 
3. Secondary Packaging – Outer Protection
Use corrugated cardboard boxes or plastic crates based on transport distance and product fragility.
Add EPE foam, bubble wrap, or corner protectors inside to prevent shifting or compression during transit.
For bulk rolls, use reinforced cartons with center supports or reels to maintain shape.
 
4. Labeling
Each package should include:

Product name and code

 

Specification and quantity
Batch/lot number
Production date
Handling instructions (e.g., "Do not compress," "Keep dry," "Fragile")

5. Palletizing (if applicable)
Arrange boxes securely on wooden or plastic pallets.
Wrap the entire pallet with stretch film and apply edge guards to protect corners.
Use straps to hold boxes tightly in place, especially for international shipping.
 
6. Delivery Method
Choose delivery options based on product sensitivity:
Local delivery: Use vans with weather protection.
Domestic shipping: Choose courier or logistics services with reliable handling.
International shipping: Use export-grade packing with moisture-proof and impact-resistant features. Air shipping for urgent and lightweight goods; sea shipping for bulk orders.
 
7. Environmental and Storage Considerations
Store and transport in conditions away from high humidity, UV exposure, and direct heat.
Maintain temperature below 40°C and humidity below 60% RH whenever possible.

Applications

Typical Applications
Automotive Seals & Vibration Pads
Aerospace Insulation
Lighting Enclosures
Electronics Gasketing
HVAC Seals & Dampers
Marine Equipment
Railway Systems

Company Profile

Silicone Expert-Dachuang Kehua

Introduction to Services Offered by Dachuang Kehua New Materials Technology Co., Ltd.
Dachuang Kehua New Materials Technology Co., Ltd. is a leading manufacturer and solution provider specializing in advanced silicone materials. With a strong foundation in material science and precision engineering, we offer a full spectrum of services designed to support high-performance sealing, insulation, protection, and cushioning across a wide range of industries.

Our Core Services Include:
1. Custom Silicone Foam Solutions
We manufacture closed-cell and open-cell silicone foam products tailored for sealing, shock absorption, thermal insulation, and environmental protection. Available in sheets, rolls, gaskets, and custom die-cut formats.

2. Solid Silicone Rubber Manufacturing
Our precision-molded solid silicone components offer excellent mechanical strength, weather resistance, and durability — ideal for demanding industrial, automotive, and medical applications.

3. Gel & Soft Silicone Engineering
We produce silicone gel pads and gel blocks with superior softness and resilience, widely used in electronics, medical cushioning, and impact protection.

4. Semi-Fluid and Potting Silicone
Our flowable silicone materials are formulated for encapsulation, potting, or bonding applications, providing insulation, moisture resistance, and thermal management.

5. Adhesive-Backed Silicone Tapes and Pads
We offer silicone sponge and foam products laminated with high-performance adhesives for easy assembly and reliable sealing.

6. Die-Cutting and CNC Precision Processing
From complex gaskets to thermal interface components, we provide full-service custom fabrication using die-cutting, CNC, and laser processing technologies.

7. Flame-Retardant and Specialty Grades
Dachuang Kehua develops and supplies flame-resistant, low outgassing, FDA-compliant, and electrically insulating silicone materials to meet strict industry and regulatory standards.

8. R&D and Custom Formulation Services
We work closely with customers to develop silicone materials and solutions tailored to specific project requirements — from formulation to final product testing and validation.

Industries We Serve:
Automotive • Aerospace • Electronics • Rail Transit • Medical Devices • HVAC • Marine • Defense • New Energy

Why Choose Us?

Other Products

OEM/ODM capabilities
Competitive pricing & bulk discounts
Fast shipping & customs clearance support
Turnkey project solutions

Wheel Loaders
Bulldozers
Motor Graders
Road Rollers
Forklifts

FAQ

Q1: What types of silicone materials do you produce?
A: We manufacture a wide range of silicone materials including closed-cell and open-cell silicone foam, solid silicone rubber, silicone gel pads, semi-fluid silicones, and adhesive-backed silicone tapes. We also offer flame-retardant, low-outgassing, and custom-formulated grades.

 
Q2: Can you customize products according to our requirements?
A: Yes, we offer complete customization — including thickness, density, color, shape, adhesive backing, and packaging. We also support custom formulations for specific environmental, mechanical, or regulatory needs.

 
Q3: Do your silicone products meet international standards?
A: Absolutely. Many of our products meet or exceed standards such as UL94 V-0, EN45545-2, NFPA 130, FDA, REACH, and RoHS, depending on the product type and application.

 
Q4: What are the typical applications of your silicone foam and rubber products?
A: Our products are widely used in automotive sealing, electronic cushioning, rail and aerospace insulation, medical devices, lighting enclosures, HVAC systems, and marine and military applications.

 
Q5: Do you offer die-cut or CNC precision processing services?
A: Yes. We provide full fabrication services including die-cutting, CNC cutting, laser cutting, and lamination, allowing us to deliver ready-to-use parts and gaskets with high precision.

 
Q6: What is your lead time for custom orders?
A: Lead times depend on the complexity and volume of the order. Standard products typically ship within 5–7 working days, while custom projects may require 7–15 working days. Express production is available upon request.

 
Q7: Can we request material samples before placing an order?
A: Yes, we offer free samples for testing and validation. Please contact us with your material requirements and shipping address.

 
Q8: How do you ensure product quality?
A: We maintain strict ISO-certified quality control procedures, including incoming raw material inspection, on-line monitoring, mechanical and thermal testing, and final product inspection to ensure consistent quality and performance.