Specifications

	Item	Description
	Backing Material	EPE Foam
	Sealing Compatibility	PET, PP, HDPE or glass containers
	Thickness	1mm
	Die Cut Diameter	15mm–120mm (Customizable)
	Roll Width	360mm / 390mm or Customized
	Printing	Custom logo/text printing on aluminum foil
	MOQ	Die-cut 100,000 pcs/size for rolls 1000㎡

Foam-Backed Induction Seal Liner: The Superior Secondary Seal

The Foam-Backed Induction Seal Liner is an upgrade over the conventional paperboard-backed two-piece induction liner.

While standard paperboard liners are susceptible to moisture, bacterial growth, and offer limited resilience-potentially compromising the secondary seal after the primary foil is broken-our foam-backed version provides a robust and reliable solution.

By replacing the paperboard with a LDPE foam material, this advanced liner delivers critical benefits:

Enhanced Seal Integrity: The foam's superior compressibility and recovery (elasticity) allow it to conform perfectly to the bottle finish. Even after the primary foil is removed, the foam maintains consistent pressure against the jar mouth, creating a far more effective and durable secondary seal that significantly reduces the risk of leakage, especially for liquid or viscous products.

Excellent Moisture & Grease Resistance: Unlike porous paperboard, the closed-cell foam structure acts as an effective barrier against moisture, vapor, oils, and greases. This not only prevents the liner itself from degrading or becoming a breeding ground for microbes but also better protects the product's integrity.

Improved Product Protection and User Experience: This upgrade ensures your product stays fresher longer by providing a superior barrier. The soft foam also offers a premium feel, enhancing the overall perceived quality for the end-user.

Ideal for applications where long-term shelf life, product integrity after initial opening, and protection against humid environments are critical, such as powdered nutritional supplements, hygroscopic foods, certain pharmaceuticals, and oily or liquid chemicals.