Dual protection
A bonded foil seal up to first opening, plus a backing wad that keeps sealing afterwards.
Product 02
2-Piece Induction Heat Seal (IHS)
Two layers of protection: a bonded seal for the journey, and a backing wad that reseals the cap after.
Overview
What it is, and what it’s for.
The 2-piece induction heat seal has two components: a foil seal and a separate backing wad. The foil bonds to the container rim during induction sealing and is removed on first opening; the backing wad stays inside the cap and continues to seal the container each time it is closed.
That gives tamper evidence up to first opening and a working reseal afterwards — which suits containers that are opened and closed many times over the life of the product. A vented configuration is available for products that build pressure.
Container compatibility
Plastic and glass containers.
Available configurations
- Dual Component Liner
- Vented Seal
Specifications
- Sealing method
- Induction
- Construction
- Foil seal + backing wad
- Tamper-evident
- Yes
- Resealable
- Yes, via backing wad
- Venting option
- Available
- Sealable to
- Plastic & glass
- Best for
- Agrochemicals, industrial, edible oil
Need custom printing, a non-standard size or a different material? Include it in your quote request.
Send Your RequirementHow It Works
How induction sealing works.
Induction sealing is non-contact: the liner is heated through the closure, so the cap stays on while the seal is made.
Read the sealing FAQsSTEP 01
The liner is fitted inside the cap, and the cap is applied to the filled container.
STEP 02
The capped container passes under an induction sealing head, which produces an electromagnetic field.
STEP 03
The field heats the liner's foil layer, melting its sealing layer onto the container rim.
STEP 04
As it cools, the liner bonds to the rim — closing off the opening itself, not just the cap.
When to Choose It
Is it right for your pack?
- You need tamper evidence and a reseal after first opening.
- The container is opened and closed repeatedly.
- You may need a vented option for a product that builds pressure.
Key Benefits
What it does for your product.
Reseals with the cap
The wad stays in the cap, so the container is sealed again every time it is closed.
Venting available
Offered as a vented seal for products that release gas or build pressure.
Two configurations
Supplied as a Dual Component Liner or as a Vented Seal.
Applications
Typical uses.
- Edible oil containers
- Agrochemical products
- Industrial chemicals
- Pharmaceutical containers
What is the difference between a 1-piece and a 2-piece induction seal?
A 1-piece seal is a single liner that bonds to the container and comes away completely when opened, leaving nothing in the cap. A 2-piece seal adds a separate backing wad that stays inside the cap after the foil seal is removed, so the cap still seals the container when it is closed again. Choose 1-piece when the product does not need resealing; choose 2-piece when the container is opened and closed repeatedly.
What stays in the cap after a 2-piece seal is opened?
The backing wad. The foil seal comes away on first opening, and the wad remains in the cap so it continues to seal the container whenever it is closed.
Can a 2-piece induction seal be vented?
Yes, venting is available. If your product releases gas or builds pressure, see the Two Piece Induction Vented Seal.
Other Options
Compare with the rest of the range.
01
1-Piece Induction Heat Seal (IHS)
Single-use, tamper-evident, residue-free peel.
Explore Product03
Two Piece Induction Vented Seal
Controlled venting built into a resealable two-piece liner.
Explore Product04
Lift & Peel
Easy-open liner designed for the end consumer.
Explore Product
Next step
Request a quote for 2-Piece IHS.
Send us your container material, neck size, product and volume. Our team typically responds within 24 hours.