RF Sealed Blister —
tamper-proof welded packaging

Fully plastic construction bonded by high-frequency sealing: HF blisters deliver maximum tamper resistance, anti-theft protection and professional product presentation — ideal for high-value consumer goods.

HF blister seal blister made of G-PET GAG PVC high-frequency welded – Scafa Thermoforming
Tamper-Proof Made in Germany

What Is an HF Blister?

HF blisters (high-frequency blisters) consist of two thermoformed plastic halves that are permanently bonded using high-frequency welding technology. This process creates a seamless, strong seal without adhesives or hot-melt glue — the result is a fully enclosed, transparent plastic shell.

The high-frequency weld seam is strong, clean and cannot be opened without visible damage. This makes HF blisters particularly attractive for products where anti-theft protection and tamper evidence are critical. Retail chains and discount stores value this packaging format for its stability and high visibility on hanging displays.

Batteries, small electronics, tool accessories, hygiene products, razor blades and toys — wherever retail demands maximum security and transparent presentation, the HF blister is the standard solution. It is also optimally suited for premium consumer goods with anti-theft requirements in DIY and hardware retail.

We manufacture HF blisters from PVC — the only standard material that can be reliably high-frequency welded — as well as from special HF-weldable co-extruded films. The shape, wall thickness and geometry are fully tailored to your product specifications. Available from 5,000 units.

Advantages of HF Sealing

Strong, clean weld seam without adhesives — cannot be opened undetected. Maximum anti-theft protection and tamper evidence for the retail sector.

Typical Industries

Batteries, small electronics, tool accessories, razor blades and toys — wherever retail demands security and transparent presentation.

Material & Custom Manufacturing

HF blisters from PVC and special co-extruded films — shape, wall thickness and geometry fully tailored to your product specifications. Available from 5,000 units.

Your Advantages with HF Blister

Tamper-Proof

The HF weld seam cannot be opened undetected — maximum anti-theft protection.

All-Plastic Finish

No cardboard, no visible adhesive points — crystal-clear 360° product visibility.

POS Hanging Options

Euro slots and die-cuts for display hooks can be directly integrated.

Made in Germany

Production and quality assurance entirely in Sundern, Sauerland.

In-House Tooling

Shorter lead times through internal mould production without external dependencies.

Series Production

Reproducible quality in large runs — economically viable from 5,000 units.

Application Areas for Our HF Blisters

Medical Technology

Sterile packaging and tamper evidence for disposable instruments, catheters and implant accessories.

Cosmetics & Personal Care

Anti-theft protection and premium presentation for razor blades, perfume sets and personal care products.

Electronics

Tamper-proof packaging for batteries, USB drives, memory cards and small electronics.

Food

Hygienic full enclosure packaging for dietary supplements, spices and portioned speciality products.

The Right Material for Your HF Blisters

High-frequency blisters require special sealable materials. We advise you on the optimal material for your HF packaging — from standard PVC to sustainable PET.

PVC

The classic choice for HF welding — outstanding sealing properties, high transparency and proven anti-theft security.

PET

Crystal clear and recyclable — for HF blisters with enhanced sustainability requirements and excellent dimensional stability.

rPET

100% recycled PET — sealable and sustainable, ideal for environmentally conscious retail packaging.

PET-G

Glycol-modified PET — exceptionally impact-resistant and shatter-proof, even for heavy products in retail.

HF blister materials — PVC, PET, rPET, PET-G

Related Blister Packaging

Custom HF Blisters —
request now

Provide us with your product dimensions and requirements — we will create a tailored quote within 24 hours.

+49 2935 6099956
Made in Germany
In-house tooling
Response within 24h

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