Refrigerator Door Gasket
The sealing function of the refrigerator door gasket is the key to the refrigerator's energy-saving efficiency and determines the life of the refrigerator air compressor to a great extent. Our R&D team has the capabilities to adjust the gasket properties through formula change and modify the cross-section design through FEA analysis of contact shape deform, press recovery, etc. to ensure maximum sealing function. Our accumulated technology and know-how in this special field can add great value to refrigerator makers.
The gaskets made of soft PVC granules can also have a wide application in the wood industry, architecture and metal industry as elements for sealing doors and windows.
Flexible PVC with magnetic strip inserts provides energy-efficient seals without the use of door latches. These gaskets are NSF-approved. Standard colors include light gray, black and white. PVC temperature range is -20°F brittle point to +150°F melt point.
Profiles of the refrigerator door gasket seals
Features of Magnetic refrigerator door gasket
-
stable performance
-
demagnetization-resistant
-
low-temperature and high-temperature resistant
-
corruption-resistant and aging-resistant.
Technical requirements to PVC compound used for refrigerating appliances
Value/item |
Hard |
Stretch Strength |
Crack Elongation rate |
Plasticiser Migration |
Cold and Heat-resistant |
Mildew |
Appeal |
Welding |
Scope |
---|---|---|---|---|---|---|---|---|---|
Low-temperature door gasket |
70±3 |
≥8.6MPa |
≥250% |
≤0.3% |
-20℃-70℃ |
Less Than Grade |
Slippy and |
≥70N |
Door Gasket |
High-temperature door gasket |
70-85 |
≥10MPa |
≥200% |
|
-15℃-150℃ |
|
Slippy and |
≥70N |
Door Gasket |
Technical requirements for PVC compound used for refrigerating appliances
Parameter |
Unit of measurement |
Value |
Specific gravity
|
g/cm3 |
1,4-1,42 |
Breaking strength, not less |
MPa |
10 |
Elongation, not less |
% |
250 |
Shore A hardness, (3+1) s |
Standard unit |
77±3 |
Plasticizer migration at polystyrene within 7 days at temperature 70°С |
% |
<1,0 |
Brittle temperature, not more |
°С |
-30 |
Light fastness to UV, IR radiation within 50 hours. |
|
Insignificant color changes without losses of plasticizer |
Possibility of welding |
|
Welding is possible |
Color |
|
RAL9003 or bluish white |
Stabilization |
|
Absence of heavy metals (lead, barium, cadmium) |
Odor |
|
Insignificant |
We will fabricate complete three-or four-sided magnetic gasket assemblies to the exact dimensions of your door. Corners of assemblies are mitered and heat-sealed with precision splicing fixtures for air-tight fit. Back-up magnets are available for non-magnetic door frames. Mounting hole slots can be punched in screw-on gaskets. Screw-on and glue-on gaskets are typically measured to the outside dimensions of the gasket. Snap-on gaskets are measured to the center line/arrowhead of the gasket.
Our die shop will produce a custom die for your particular needs and our engineers will help you in designing your magnetic gasket. We can extrude flexible, semi-rigid, rigid and dual durometer profiles in PVC. Fax us a sketch for a quick response.