P-Shape Extruded Seals

P-shape extruded seals are versatile components characterized by their distinctive "P" cross-section, which features a round, hollow bulb connected to a flat flange (tail). This design enables an effective, resilient seal, making them ideal for weatherstripping, noise reduction, and vibration damping in environments with irregular gaps or low closing forces.
Key Features and Benefits
Excellent Compression Sealing: The hollow bulb design provides high flexibility and a soft seal, compressing easily to form an airtight and watertight barrier, even on uneven surfaces.
Versatile Mounting: The flat flange base is designed for easy installation using pressure-sensitive adhesives, or it can be mechanically fastened or tucked into a groove.
Vibration and Noise Reduction: The bulb structure effectively absorbs shocks and dampens vibrations, leading to quieter operation in machinery and vehicles.
Durability and Weather Resistance: Made from durable elastomers, these seals maintain their properties against frequent compression and exposure to environmental factors like UV radiation, ozone, moisture, and extreme temperatures.
Customizable: Available in various bulb sizes, tail widths, and materials to suit bespoke requirements.
Common Materials
Material selection depends heavily on the operating environment and required resistances:
EPDM (Ethylene Propylene Diene Monomer): The most frequent choice for outdoor applications due to excellent resistance to ozone, UV radiation, sunlight aging, and water absorption.
Silicone Rubber: Offers superior performance in extreme high and low temperatures, good chemical resistance, and is often FDA-compliant for medical and food industry use.
Nitrile (NBR / Buna-N): An excellent choice when oil and fuel resistance are the primary concerns, used in industrial equipment and fuel systems.
Chloroprene (Neoprene® / CR): Provides a balanced resistance profile, including good water, flame, and moderate oil resistance, often used in marine and HVAC applications.
Applications
P-shape extruded seals are widely used across diverse industries for sealing, protection, and noise control:
Automotive and Marine: Used as door, trunk, hood, and hatch seals in cars, trucks, RVs, and boats.
Construction and Building: Applied in windows and doors for weatherproofing, insulation, and noise control.
Industrial Equipment: Employed in machinery access panels, electrical enclosures, and equipment guards to protect sensitive components from environmental elements and reduce noise.
Appliances and Electronics: Used as gaskets in domestic appliances and electronic devices to prevent dust and moisture ingress.