Lipped sealing strip Refrigerator Door Gasket

PVCprofiledfor windows and doors

Magnetic PVC refrigerator door gasket engineered to provide airtight, energy-efficient seals for refrigerator doors and similar enclosures.

Overview and applications

We offer over 300 profiles for magnetic refrigerator door gaskets with performance features including high- and low-temperature resistance, corrosion resistance, ageing resistance and demagnetization resistance. Typical applications: electric refrigerators, disinfectors, distillatories, cabinets, ice cabinets, water fountains, automotive sealing and other soft-gasket uses. Flexible PVC variants are also used in building and metal industries as sealing elements for doors and windows.

Materials & manufacturing capabilities

Flexible PVC with magnetic strip inserts provides energy-efficient seals without door latches. Profiles can be extruded in flexible, semi-rigid, rigid and dual-durometer PVC. R&D can adjust compound formulas and modify cross-section designs using FEA analysis (contact shape deformation, press recovery, etc.) to maximize sealing performance. Assemblies can be fabricated as complete three- or four-sided magnetic gasket assemblies sized to exact door dimensions; corners are mitered and heat-sealed with precision splicing fixtures for airtight fit. Back-up magnets for non-magnetic frames, mounting hole slots for screw-on gaskets, screw-on, glue-on and snap-on mounting styles are supported.

Features

• Stable performance
• Demagnetization-resistant
• Low-temperature and high-temperature resistant
• Corrosion-resistant and ageing-resistant

Technical requirements (application-specific)

• Low-temperature door gasket: Hardness 70±3 Hs(A); Stretch Strength ≥8.6 MPa; Crack Elongation rate ≥250%; Plasticiser Migration ≤0.3%; Service range -20℃ to 70℃; Mildew: Less Than Grade; Surface: Slippy and No Burr; Welding corner strength ≥70 N; Scope: door gasket for refrigeration, ice-cabinet and water fountain.
• High-temperature door gasket: Hardness 70–85 Hs(A); Stretch Strength ≥10 MPa; Elongation ≥200%; Service range -15℃ to 150℃; Surface: Slippy and No Burr; Welding corner strength ≥70 N; Scope: door gasket for disinfector and cabinet.

PVC compound technical requirements

• Specific gravity: 1.40–1.42 g/cm3
• Breaking strength (not less): 10 MPa
• Elongation (not less): 250%
• Shore A hardness (3+1 s): 77±3
• Plasticizer migration at polystyrene within 7 days at 70°C: <1.0%
• Brittle temperature (not more): -30°C
• Light fastness to UV/IR (50 hours): insignificant color changes without loss of plasticizer
• Welding: welding is possible
• Color: RAL9003 or bluish white
• Stabilization: absence of heavy metals (lead, barium, cadmium)
• Odor: insignificant

Production & finishing notes

Profiles can be die-cut and produced to custom dimensions. Standard colors include light gray, black and white. Many gasket types are NSF-approved. PVC temperature behavior: brittle point about -20°F and melt point about +150°F.

caractéristiques / spécifications techniques

• Number of available profiles: over 300
• Primary material: soft PVC with magnetic strip insert
• Standard colors: light gray, black, white
• NSF approval: yes (for magnetic PVC gasket variants)
• Typical PVC service temperature range: approx. -20°F to +150°F
• Custom fabrication: three- or four-sided assemblies, mitered heat-sealed corners, back-up magnets, mounting hole slots, screw-on/glue-on/snap-on options