3M™ 396 Super Bond Adhesive Tape

3M™ 396 Super Bond Tape: High-performance bonding on polyester

The 3M™ 396 tape is designed for long-lasting adhesion to polyester surfaces, even under demanding conditions.

Its high-performance acrylic adhesive ensures a firm hold on films, foams, and hard-to-bond substrates.

Ideal for industrial applications requiring reliable and durable bonding.

Presentation of the 3M™ 396 Super Bond Tape

The 3M™ 396 Super Bond Tape is designed for high-performance bonding applications on polyester. It is aimed at professionals who require reliable adhesion on difficult-to-bond surfaces.

At Dagobert Industrie, we particularly recommend it for the graphic arts, printing, and signage sectors, where polyester substrates are ubiquitous.

Composition and structure of the polyester film

The 3M™ 396 is based on a high-quality transparent polyester (PET) film. This backing offers excellent mechanical resistance, even under tension or in the presence of mild solvents.

The adhesive used is a high-performance acrylic. It develops progressive and long-lasting adhesion, including on low surface energy substrates like certain engineering plastics.

Its main features:

• Backing: transparent polyester (PET) film
• Adhesive: high-performance acrylic
• Thermal resistance: up to approximately 150 °C for prolonged use
• Solvent resistance: good resistance to common solvents
• Transparency: high, suitable for visible applications

Compared to a standard tape like the 3M™ 371 (polypropylene, general purpose), the 396 offers significantly higher thermal and chemical resistance. It is positioned for demanding industrial segments.

Product	Backing	Adhesive	Thermal resistance	Typical usage
3M™ 396	Polyester (PET)	High-perf. acrylic	~150 °C	Bonding on polyester, printing, signage
3M™ 371	Polypropylene	Standard acrylic	~60 °C	Packaging, general purpose
3M™ 850	Polyester (PET)	Acrylic	~150 °C	Masking, electronics, industry

Technical properties and bonding performance

The 3M™ 396 is a double-sided tape with a polyester backing, designed for permanent assemblies requiring impeccable dimensional stability.

Its acrylic adhesive offers high shear strength and withstands temperatures of up to 150 °C in prolonged use. It is also resistant to UV, humidity, and many common solvents.

The thin thickness of the polyester backing ensures precise bonding without extra bulk, ideal for flush assemblies or applications with tight mechanical tolerances.

Which surfaces does the 3M™ 396 adhere to best?

The 3M™ 396 performs best on high surface energy materials. It is particularly suitable for the following substrates:

• Metals: steel, aluminum, stainless steel
• Glass and ceramics
• Polyester (PET) films and polycarbonate
• Painted or lacquered surfaces (after preparation)

On low surface energy plastics (polyethylene, polypropylene), surface preparation, primer or plasma activation, remains necessary to achieve reliable adhesion.

Product	Backing	Adhesive	Max temp.	Typical usage
3M™ 396	Polyester (PET)	Acrylic	150 °C	Precise assembly, electronics, industry
3M™ 9495LE	Polyester (PET)	High-performance acrylic	149 °C	Electronics, displays, labeling
3M™ 467MP	None (transfer)	200MP Acrylic	149 °C	Thin bonding, light plastic assembly
tesa® 4965	Polyester (PET)	Acrylic	120 °C	General industrial assembly

Comparison: 3M™ 396 versus other industrial tapes

The industrial tape market offers various backings: polyester, polypropylene (PP), and PVC. Each material meets different constraints. Here is how the 3M™ 396 positions itself.

Comparison table: polyester tape vs. PP tape vs. PVC tape

Feature	3M™ 396 (Polyester)	Standard PP Tape	PVC Tape
Backing	Biaxially oriented polyester film	Polypropylene film	Flexible PVC film
Thermal resistance	Up to 150 °C	60-80 °C	80-100 °C
Tensile strength	Very high	Medium	Medium to good
Dimensional stability	Excellent	Low	Medium
Adhesion to polyester	Optimized	Limited	Fair
Solvent resistance	Good	Low	Medium
Typical applications	High-temp masking, bonding PET films	General packaging	Electrical insulation, marking

PP tape is economical but deforms under heat and loses its adhesion quickly. It is suitable for light packaging, not demanding industrial use.

PVC is more resistant, but it remains sensitive to high temperatures and becomes rigid in cold conditions. Its use is limited to electrical applications and marking.

The 3M™ 396 polyester tape stands out when conditions become severe: heat, solvents, mechanical tension. Its biaxial backing guarantees dimensional stability that PP and PVC cannot offer.

At Dagobert Industrie, we recommend the 3M™ 396 for any process involving polyester substrates, high temperatures, or prolonged mechanical stress.

Applications and fields of use for the 3M™ 396

The 3M™ 396 is a double-sided tape designed for bonding to polyester and other low surface energy materials. It meets the requirements of industries that bond difficult-to-adhere materials.

Its high-performance acrylic adhesive ensures a durable hold, even in humid environments or when exposed to temperature fluctuations.

Here are the main fields of application for the 3M™ 396:

• Graphic industry: bonding polyester films, mounting flexographic plates
• Signage and display: bonding rigid panels, assembling display supports
• Automotive industry: applying protective films, attaching flexible trims
• Electronics: assembling lightweight components on plastic surfaces
• Industrial packaging: joining plastic films and sheets

The 3M™ 396 stands out for its ability to bond to polyester without systematic pre-treatment, which reduces production steps.

Product	Manufacturer	Ideal backing	Thermal resistance	Typical usage
3M™ 396	3M	Polyester, LSE plastics	Up to 120 °C	Film bonding, flexo plate mounting
3M™ 9495LE	3M	Mixed surfaces, metal, plastic	Up to 149 °C	Electronics assembly, medical
tesa® 4965	tesa	Smooth surfaces, glass, metal	Up to 100 °C	Signage, display
3M™ 467MP	3M	Paper, plastic, metal	Up to 121 °C	Labeling, light assembly

For applications on flexible or rigid polyester, the 3M™ 396 remains the benchmark choice we recommend at Dagobert Industrie.

Application tips to ensure optimal adhesion

Surface preparation is the most critical step. Clean the polyester thoroughly with isopropanol or a compatible solvent before application.

The surface must be dry, clean, and free of dust or grease. Even minor contamination is enough to significantly reduce the bond strength.

Apply the 3M™ 396 at a temperature between 15 °C and 35 °C. Outside this range, the acrylic adhesive loses its flexibility and initial adhesion drops.

Apply firm and uniform pressure along the entire length of the tape during application. Use a roller or your thumb, pressing progressively without leaving any unbonded areas.

Allow an adhesion build-up time of at least 24 hours before subjecting the assembly to mechanical or thermal stress. The final strength is reached after this period.

A few points to remember:

• Avoid pulling or stretching the tape during application
• Cut with clean scissors to obtain clean edges
• Do not apply to a freshly painted or treated surface (wait for full curing)
• Outdoors, ensure the surface is protected from residual moisture

A well-prepared assembly ensures that the 3M™ 396 fully expresses its performance on polyester film, even in demanding environments.

FAQ - 3M™ 396 Super Bond Tape

1. Which substrates does the 3M™ 396 adhere to really well?

The 3M™ 396 is designed specifically for polyester surfaces, including treated or untreated polyester films.

It also adheres effectively to many rigid plastics, painted metals, and smooth low surface energy surfaces.

2. What is the difference between the 3M™ 396 and a standard adhesive tape?

A standard tape uses a classic acrylic or rubber adhesive, suitable for porous surfaces like cardboard or paper.

The 3M™ 396 incorporates a high-performance Super Bond adhesive formulated to stick durably to difficult surfaces like polyester.

3. Does the 3M™ 396 resist heat and humidity?

Yes. Its acrylic adhesive offers good resistance to high temperatures and ambient humidity.

It remains stable in demanding industrial environments without softening or losing its adhesive power.

4. Can it be removed without leaving residue?

The 3M™ 396 is designed for permanent bonding. Removal may leave adhesive traces, especially after prolonged bonding.

If you need a repositionable tape, please look at other references in the 3M range suited for that use.

5. In which sectors is the 3M™ 396 used?

It is mainly found in large-format digital printing, signage, and the manufacturing of polyester banners.

It is also used in the textile industry and in any application requiring reliable bonding to flexible films.

6. How can I properly prepare the surface before application?

The surface must be clean, dry, and free of dust or grease. Cleaning with isopropanol is recommended.

Then apply the tape by exerting firm and uniform pressure to maximize adhesive contact and ensure an optimal hold.