– Leaks and energy losses resulting from inadequate sealing are a common problem in many sectors, from construction to industry. Small deficiencies in joints and enclosures can have significant consequences: water ingress, unwanted air circulation, dust contamination or a noticeable increase in energy consumption.
In this context, foam weatherstripping emerges as a high value-added technical solution, providing a hermetic seal and substantially improving the thermal and acoustic insulation of facilities and equipment.
Functional efficiency of technical weatherstripping
Technical weatherstripping is made from technical foams with specific properties that allow it to adapt to uneven surfaces, guarantee durability in demanding conditions and ensure consistent performance. The main compositions include:
- Cellular EPDM (ethylene-propylene-diene rubber): Available in standard, sulphur-free or semi-closed cell versions, it stands out for its resistance to weathering, UV rays and humidity.
- Self-extinguishing neoprene (CR): Compliant with UL 94 HF1 and EN 45545-2 standards, it is particularly suitable for applications with fire protection requirements.
- Natural rubber (NR): Its high elasticity makes it ideal for environments that require high resilience.
- NBR (nitrile): Offers excellent resistance to oils, greases and fuels, and is commonly used in mechanical and automotive applications.
- Cross-linked polyethylene and polyolefin foams (PE, PTPK): Variable cell structure (closed, semi-closed or open), giving them thermal insulation, impact absorption and cushioning properties.
Technical benefits
- Energy efficiency: Prevents air leaks and stabilises internal temperature.
- Thermal resistance: Operating range from -50 ºC to +200 ºC, depending on the material and adhesive system used.
- Easy application: Self-adhesive formats that eliminate the need for mechanical fasteners.
- Durability: Long service life without deformation or loss of adhesion.
Applications in infiltration control and environmental protection
The weatherstripping acts as a barrier against external elements, ensuring optimal operating conditions, hygiene and safety. Its main applications include:
- Sealing in industrial and building enclosures: Prevention of water, air or dust infiltration.
- Thermal and acoustic insulation: Noise reduction and temperature maintenance thanks to the cellular structure of the foams.
- Protection of electronic equipment and machinery: Minimises the entry of contaminating particles and dissipates harmful vibrations.
- Production and storage environments: Prevention of cross-contamination by sealing joints and access points.
Available formats
- Individual weatherstripping (BI): Rolls from 2 to 30 mm thick, available with self-adhesive or shrink-wrapped finish.
- Quick weatherstripping (BIR): Without silicone protector, allows for quick application on high-speed assembly lines.
- Multi-roll weatherstripping (BM): Several rolls on the same backing, optimising storage and supply.
- Continuous weatherstripping (BC): Designed for continuous industrial processes; available in customised formats.
Advanced technical solutions: thermal, chemical and fire resistance
Critical applications require materials with superior specifications:
- PORON® (microcellular foam): Minimal residual deformation, even under prolonged compression and intensive cycles.
- BISCO® (silicone foam): Withstands temperatures up to 220ºC, complying with demanding regulations in the railway and aeronautical sectors.
- Technical tapes (double-sided, aluminium): An alternative to mechanical fasteners in complex locations or where lighter structures are required.
- Fire-retardant elastomeric foams: Heat resistance up to 1200 °C, suitable for environments with a risk of fire or extreme heat.
Commitment to sustainability
Technical foams not only meet functionality and safety requirements but can also be aligned with sustainability criteria. Certifications such as ISCC PLUS guarantee the responsible use of raw materials, minimising environmental impact throughout the product’s life cycle.
Foam weatherstripping is a comprehensive technical solution for sealing, insulation and protection problems in industrial and construction environments. The right choice and implementation can make all the difference in terms of operational efficiency, durability and sustainability.
For expert advice on the most suitable type of weatherstripping for your application, our technical team is at your disposal.
Contact us to optimise your industrial processes.
