EPDM Gaskets, EPDM Membranes & Silicone Gaskets

---

Overview

EPDM (Ethylene Propylene Diene Monomer) and silicone-based sealing systems are essential components in modern façade and construction applications, providing airtightness, watertightness, and long-term durability. These materials are engineered to withstand extreme weather conditions, UV exposure, and thermal movements, ensuring reliable performance over the lifecycle of the building.

GSK Global FZC L.L.C. supplies high-quality EPDM gaskets, EPDM membranes, and silicone gaskets, manufactured in compliance with ASTM and BS EN standards, suitable for curtain walls, glazing systems, roofing, and waterproofing applications.

Product Categories

1. EPDM Gaskets

• Extruded rubber profiles for glazing and façade systems
• Used in curtain walls, windows, doors, and skylights
• Designed for compression sealing and weatherproofing

2. EPDM Membranes

• Flexible waterproof sheets for roofing and façade applications
• Used for air barriers, vapor control layers, and waterproofing systems
• Available in reinforced and non-reinforced forms

3. Silicone Gaskets

• High-performance elastomeric seals
• Suitable for structural glazing and high-temperature environments
• Excellent flexibility and long-term elasticity

Material Properties

EPDM (Rubber)

• Excellent UV, ozone, and weather resistance
• Wide temperature range: -40°C to +120°C
• High elasticity and compression recovery
• Resistant to aging and environmental degradation

Silicone Rubber

• Superior temperature resistance: -60°C to +200°C
• Excellent flexibility and long-term stability
• Non-reactive and chemically stable
• Ideal for structural and high-performance glazing

Key Features

• Long-term weatherproofing and sealing performance
• High resistance to UV, ozone, and environmental exposure
• Excellent flexibility to accommodate thermal expansion and movement
• Airtight and watertight sealing capability
• Low maintenance and extended service life

Standards & Compliance

Manufactured and tested in accordance with:

EPDM Gaskets & Membranes:

• ASTM D2000 – Rubber material classification
• ASTM C864 / C794 – Adhesion and performance of elastomeric materials
• EN 12365 – Performance of gaskets for doors, windows, and curtain walls
• EN 13956 / EN 14909 – Waterproofing membranes

Silicone Gaskets:

• ASTM C920 – Elastomeric joint sealants
• ASTM C1135 / C719 – Adhesion and movement capability
• EN 15651 – Sealants for construction applications

Overview

Curved and complex 3D glass represents the forefront of architectural innovation, enabling designers to realize fluid, organic, and parametric building forms that go beyond conventional flat façades. Manufactured using advanced bending and forming technologies, these glass systems are engineered to achieve single curvature, double curvature, and fully free-form geometries, while maintaining high optical quality and structural performance.

This specialized glazing solution is widely used in iconic buildings, cultural landmarks, and premium developments, where architectural identity and design complexity are key project drivers.

Manufacturing Technologies

Hot Bent Glass (Gravity / Mould Formed):

Glass is heated to high temperatures and shaped over precision molds to achieve accurate curvature, including complex double-curved geometries.

Cold Bent Glass: Flat glass is mechanically bent during installation within framing systems, suitable for mild curvature and cost-effective solutions.

Laminated Curved Glass: Multiple curved glass layers bonded with interlayers (PVB / SGP) for enhanced safety and structural integrity.

Insulated Curved Glass Units (Curved IGUs): Combination of curved glass panes with sealed cavities for thermal and acoustic performance.

Key Features

Capability for single radius, multi-radius, and free-form 3D geometries

High optical clarity with controlled distortion tolerances

Integration with laminated, insulated, and coated glass systems

Compatibility with structural glazing and unitized façade systems

Precision fabrication aligned with digital modeling (BIM / parametric design)