Foam Sealing Set — Specifications
| Specification | Detail |
|---|---|
| Product Type | Foam gasket set (top + bottom) |
| Contents | 2 seals, one lid (upper) and one base (lower) |
| Important | The upper (lid) seal is the thicker of the two |
| Compatibility | Select per model: V.100, V.200, V.300, V.333, V.350P, V.400P, V.500P, V.1200 |
| Installation | Tool-free, lift out the old seals and press in the new ones |
| Function | Forms the airtight vacuum chamber when the lid closes |
| Brand | LAVA |
Why the Foam Seals Matter and When to Replace Them
When you close a LAVA sealer's lid, two foam seals press together to form the airtight chamber the pump draws air from. If those seals compress, harden, or develop gaps, the machine can lose suction and stop vacuuming properly.
How the Vacuum Chamber Is Formed
When Worn Foam Seals Are Usually the Cause
If the bags and pump are fine but the machine struggles to pull vacuum, the foam seals are one of the first maintenance parts to check.
Weaker Suction
The chamber no longer seals tightly, so the pump cannot pull as strongly.
Longer Vacuum Cycles
The machine takes longer to reach pressure because air leaks through worn foam.
Bags Will Not Vacuum Properly
If the chamber cannot become airtight, the bag may not vacuum properly at all.
Inconsistent Sealing Results
Vacuum and sealing can become unreliable once the gasket contact is uneven.
Normal Maintenance, Not a Fault
Foam gaskets work on every single cycle. Over months and years of use, the foam can compress, harden, or develop gaps. Replacing the set restores the airtight chamber.
Tool-Free Replacement
Lift the Lid
Open the sealer so you can access both foam seals.
Replace the Upper Seal
Lift out the old lid seal and press in the new thicker upper seal.
Replace the Lower Seal
Lift out the old base seal and press the lower seal into position.
Check the Fit
Make sure both seals sit correctly before closing the lid.
Select the Set for Your Model
Model Matching Matters
Each LAVA model has seals sized to its chamber, so a V.300 set differs from a V.400P set. Choosing the correct model is what ensures a proper fit and a tight chamber seal.
