Seal. Protect. Perform.
Norseal provides high-performance sealing, cushioning, and insulation solutions that are expertly engineered to operate in extreme environmental, mechanical, and regulatory conditions. With an extensive range of silicone, polyurethane, PVC, and specialty materials, Norseal assists manufacturers in safeguarding systems against heat, fire, vibration, moisture, and environmental exposure across critical industries.
Created for performance, durability, and regulatory compliance, Norseal materials are suited to applications where long-term reliability is vital, such as transport, electric vehicle (EV) systems, electronics, lighting, construction, and industrial equipment.
Why Choose Norseal?
What Problems Does Norseal Solve?
Sealing
Reliable Sealing Integrity
Fire Protection
Fire & Safety Protection
Environmental Protection
Environmental Barrier Protection
Compliance
Global Compliance
Efficiency
East, Efficient Installation
Cushioning vs. Gasketing: Understanding the Difference
Norseal materials are used for both cushioning and gasketing applications, each serving a distinct functional role depending on design requirements. Although materials may look similar, performance expectations and selection criteria differ greatly.
Gasketing applications are designed to provide a reliable seal between mating surfaces, preventing the ingress or escape of air, moisture, dust, heat, or fluids. These applications prioritise low compression set, conformability, and resistance to extreme temperatures, flame, smoke, and environmental exposure.
Cushioning applications, on the other hand, are intended to absorb shock, vibration, or mechanical stress, improving durability and protecting components by means of energy absorption, load distribution, and vibration damping.
Many Norseal silicone foams, sponges, and solid materials are expertly engineered to support both functions, enabling designers to balance sealing integrity with cushioning and protection in a single solution.
Featured Norseal Product Families
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Norseal product families offer advanced silicone materials and complementary fire and weather sealing solutions designed to meet demanding performance and regulatory standards across industrial and regulated environments. Click blue links to learn more about product series. |
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| Product Family | Series | Description | Key Features | Representative Applications |
| PVC Foam | V Series PVC Foams | Cost-effective weather-sealing and glazing materials. Available as cast foam or in extruded profile shapes | Consistent compression; Long-term sealing performance; Soft, Medium, and Firm grades | Windows, doors, glazing, building envelope interfaces |
| Polyurethane — Low-density Foams | AGP200/CY80 | — | Excellent water-sealing performance. Soft and highly conformable. Very low fogging, VOC emissions, and odour. Plasticiser-free and demonstrates excellent ageing resistance for long-term durability; bio-based version | Automotive HVAC gasketing, interior sealing, and applications in contact with circulating air. Instrument panels, windscreen sealing, roof and pillar mounting. General gasketing applications requiring water, dust, wind, and noise sealing under demanding environmental conditions |
| Polyurethane — Flame Retardant Foams | FS1000; PS-V0 Series | — | Intumescent foam expands under heat; Helps contain flames; Maintains compressible seal | Fire protection, EV battery compartments, safety critical enclosures |
| Polyurethane — Spacing and Cushioning Foams | LS7000; K8000, PF, Thermalbond | — | Maintain consistent spacing and controlled joint thickness. Reduces vibrations, while offering consistent deflection and uniform pressure. Resistant to environmental stressors such as temperature changes, oxidation, and ageing. | Structural silicone glazing (SSG) systems, curtain walls and façade assemblies; electronic devices |
| Silicone Sponge | R104xx Series | Closed cell silicone sponge materials for clean, durable sealing with improved mechanical resistance | Solvent resistance; Low compression set; Low outgassing; Available UL flame ratings; Soft, Medium, Firm grades | Gasketing, insulation, electronics, regulated or clean applications |
| Silicone Foam | F Series Silicone Foam (F-10, F-12, F-15, and FG20) |
High temperature, flame retardant silicone foams designed for regulated and extreme environments | Lightweight fire blocking performance; Flame retardant grades available; Low smoke and low toxicity options | Aerospace, rail, EV systems, electronics, insulation blankets, radiant heat shields |
| Solid Silicone | 300–700 / 9030–9070 Series | High-strength solid silicone materials for demanding mechanical and thermal requirements | High tensile strength; Elevated temperature performance; Electrically conductive options available; Soft, Medium, and Firm grades | Die cut parts, electronics, enclosures, equipment housings |
| Reinforced Silicone | 3320, 4032, 4444, 4480 | Fibreglass reinforced silicone constructions engineered for extreme pressure and heat | High pressure resistance; High temperature capability; Excellent dimensional stability | Press pads, engine compartments, military and aerospace systems, lamination processes |
Selection Support
Engineers can use the Pad Selection Tool for Foam Recommendation or Compression Curve on EV products, or consult our team for bespoke material recommendations and global equivalents.
Key considerations include operating temperature, compression requirements, flame performance, adhesive selection, environmental exposure, and regulatory standards.
Material Selection at a Glance
| The table below assists in identifying suitable Norseal material types according to performance requirements, application environment, and design purpose. | |||||
| Material Type | Thickness Range | Adhesive Type | Key Features | Typical Applications | Why |
| PVC Foam | 3.2–12.7 mm | Acrylic | AAMA 810.1 compliant, economical weatherseal | Windows, doors, glazing | Cost-effective glazing and general weathersealing |
| PU (Intumescent) | 3.2–6.4 mm | Acrylic | Expands when heated, airtight/watertight | EV battery packs, fire compartments | Expanding fire protection |
| Silicone Foam (General Purpose) | 1/16"–1" | – | Lightweight, flame resistant | EV, lighting, medical | Fire blocking with compression recovery |
| Silicone Foam / Sponge / Solid (PSA Backed) | 1/32"–1/2" | Silicone or Acrylic PSA | Conformable, compressible, flame-retardant options | Lighting, electronics, transport | Instant gasket solutions for quick installation |
| Closed Cell Silicone Sponge | 1/32"–1/2" | Optional PSA | Low compression set, low outgassing | Electronics, lighting, industrial | Durable, clean sealing |
| Solid Silicone | 1/32"–1/4" | Optional PSA | High tensile strength, +500°F | Aerospace, appliances | Mechanical durability |
| Fibreglass Reinforced Silicone | 0.031"–0.125" | Optional PSA | Extreme heat and pressure resistance | Aerospace, press pads | Top performance in demanding environments |
Find the right Norseal material for your needs by scrolling through the arrows
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