Waterproof Sealing Foam Gaskets
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Detailed Product Description
Waterproof sealing foam gaskets are engineered for critical applications demanding protection against ingress from water, dust, and air. These products predominantly utilize closed-cell foam carriers, such as EPDM, Neoprene, or high-density PVC, which possess sealed cellular structures preventing fluid and gas transmission. The adhesive component is typically a high-performance acrylic or specialized rubber-based formula, chosen for its resistance to environmental factors (UV, temperature cycling) and its ability to achieve immediate, sustained adhesion on various substrates, including LSE (Low Surface Energy) plastics and painted metals.
The performance is quantified by two primary parameters: Compression Deflection (CLD), which dictates the force required to achieve a specified degree of compression (critical for an effective seal), and Water Absorption Rate (typically <5% by volume, per ASTM D1056). For maximum seal integrity, the foam must be compressed sufficiently (often 30%−50% of its original thickness) to eliminate air gaps. These gaskets are often supplied in precision die-cut forms or specific slit widths to ensure fitment within tight enclosures, providing verified sealing performance (e.g., meeting specific IP ratings).
Why Choose Us
Advantages and Core Features
- Verified Water and Dust Resistance: The fundamental closed-cell architecture inherently blocks the passage of liquids and fine particulates, making these gaskets suitable for achieving specified Ingress Protection (IP) ratings in finished goods.
- High Environmental Durability: Foam materials like EPDM offer resistance to UV light, ozone, and oxidation, ensuring the seal maintains its elasticity and integrity when continuously exposed to outdoor or harsh industrial environments.
- Consistent Compression Performance: Precise control over the foam's density and compression deflection ensures that the gasket exerts the necessary sealing force without requiring excessive physical pressure, preventing damage to the mating enclosure components.
- Superior Gap Filling Capability: The flexible and compressible nature of the foam easily conforms to irregular surfaces, curvature, and dimensional inconsistencies, effectively filling non-uniform gaps where rigid seals would fail.
- Chemical and Fluid Stability: Neoprene and EPDM compositions resist degradation from common fluids, including mild acids, alkalis, and automotive oils, guaranteeing seal longevity in mechanical applications.
- Optimized Adhesive Wet-Out: Thick adhesive coating weights are used to effectively 'wet out' textured, rough, or powder-coated surfaces, ensuring a complete and enduring bond that supports the sealing function.
Core Features
Application Areas
- Outdoor Lighting and Enclosures: Sealing access doors and seams on exterior LED fixtures and control cabinets to prevent moisture damage.
- Automotive Exterior Gasketing: Creating durable seals around car windows, sunroofs, and under-hood components (e.g., air filters).
- HVAC and Refrigeration Units: Sealing access panels and pipe entries to prevent condensation and air leakage.
- Appliance Wet Area Sealing: Gasketing washing machine tubs, dryer vents, and dishwasher door perimeters.
- Construction and Roofing: Sealing gaps between structural elements, siding panels, and window frames to maintain building envelope integrity.
Technical Specifications
Introduction
We specialize in providing robust sealing solutions designed to protect sensitive equipment and enclosures from harsh environmental elements, ensuring long-term integrity against water and dust ingress.
Company Profile
Established in 2005, covering nearly 11,000 square meters, we integrate R&D, production, and sales. We uphold quality and reputation, specializing in premium adhesive solutions, particularly in PU/PE/NBR Foam Solutions. We are trusted by global leaders like Midea, TCL, and Vestel, and offer 10%−15% cost savings compared to EU suppliers. Our commitment to delivering pragmatic, cost-effective solutions is supported by RoHS, REACH, ISO 9001, and ISO 14001 certifications.
Usage Guide
| Material Type | EPDM, Neoprene, PVC Foam, High-Density PE |
| Cell Structure | Closed Cell (Impermeable) |
| Density Range | 90 to 200 kg/m³ |
| Water Absorption (ASTM D1056) | <5% by Volume |
| Temperature Range (Continuous) | −40∘C to +90∘C |
| Adhesive Type | High-Tack Acrylic or Rubber-Based |
| Typical Thicknesses | 1.5 mm to 15 mm |
About
Jiangsu Shixin Adhesive Tape Product Co., Ltd.
Our company was registered and established in Wuxi, Jiangsu in 2005, Wuxi Shixin Adhesive Tape Products Co., Ltd., mainly engaged in various adhesive tape products; We are Wholesale Waterproof Sealing Foam Gaskets Suppliers andChina ODM Waterproof Sealing Foam Gaskets Factory and Producer, after nearly 20 years of persistence and struggle, the company has grown vigorously and gradually expanded in scale. In 2018, we invested in a new factory in Suqian, Jiangsu, and established Jiangsu Shixin Adhesive Tape Products Co., Ltd.; At present, our company has become a high-tech enterprise integrating R&D, production and sales. The company has always firmly believed in the belief that "quality and reputation are the foundation of survival", continuously cultivating technical personnel, strengthening the development of new products, improving sales support, and striving to provide customers with better products and services.
Frequently Asked Questions
Frequently Asked Questions (FAQs)
- Q: How is the 'waterproof' characteristic achieved in the foam?
- A: The foam is structured with completely sealed, internal cells (closed-cell structure). Unlike open-cell foam, these individual pockets of gas prevent water and air from migrating through the material body, providing the intrinsic sealing property.
- Q: What level of compression is required for an optimal water seal?
- A: To establish an effective, long-term seal, the foam should typically be compressed by 30% to 50% of its original thickness. This range ensures that all surface irregularities are fully addressed and the required sealing force is maintained without causing permanent compression set.
- Q: How do you ensure the adhesive bond line is also waterproof?
- A: We select specialized, moisture-resistant acrylic or rubber adhesives with high cohesion and use a sufficiently thick adhesive coating weight. This ensures complete substrate 'wet-out,' preventing the lateral migration of water along the bond line.
- Q: Can these gaskets be used in saltwater or high-humidity marine environments?
- A: Yes, EPDM and Neoprene closed-cell foams, combined with specialized marine-grade adhesives, offer exceptional resistance to high humidity and corrosive salt-spray environments, making them suitable for marine enclosures and equipment.
Request a Specification Sheet or Sample
Contact our engineering team today to discuss your high reflectance project requirements.
