Benefits
- High Bond Strength: Provides strong adhesion for demanding industrial bonding applications.
- LSE Material Compatibility: Suitable for many difficult-to-bond plastics where conventional acrylic adhesives may have limited adhesion.
- High Temperature Performance: Designed for short-term exposure up to 232°C (450°F) and long-term exposure up to 149°C (300°F) according to the current 3M product information.
- Excellent Shear Resistance: Helps maintain bond integrity when subjected to sustained loads, including at elevated temperatures.
- Chemical Resistance: Provides good resistance to moisture and a range of industrial chemicals.
- Improved Converting Performance: Fiber reinforcement provides structure and improves roll stability while helping resist adhesive oozing.
- Flexible Processing: Suitable for laminating, bonding, labeling, gasketing and precision die-cutting applications.
Technical Specifications
| Property | Typical Value |
|---|---|
| Product | 3M™ Adhesive Transfer Tape 9445 |
| Product Number | 9445 |
| Adhesive | 3M™ Adhesive 350 |
| Adhesive Type | Modified acrylic |
| Tape Construction | Adhesive transfer tape |
| Adhesive Thickness | 0.127 mm (5 mil) |
| Reinforcement | Discrete glass fiber reinforcement |
| Liner | 55 lb densified kraft paper |
| Liner Thickness | Approx. 0.08 mm (3.2 mil) |
| Liner Color | White / kraft paper construction depending on product configuration |
| Short-Term Temperature Resistance | Up to 232°C (450°F) |
| Long-Term Temperature Resistance | Up to 149°C (300°F) |
| Minimum Long-Term Temperature Resistance | Approx. -40°C (-40°F) |
| Recommended Adhesion | Metal, HSE plastics, LSE plastics, powder-coated surfaces |
| Processing | Laminating, bonding, labeling, gasketing, die-cutting |
The values above are typical/reference values and should not be used as product specifications. Always confirm the current 3M technical data sheet for the exact product configuration and application.
Representative 180° Peel Adhesion
After 72 hours at 23°C, representative peel adhesion values from the 3M technical data include:
| Substrate | Typical Peel Adhesion |
|---|---|
| ABS | 9.3 N/cm |
| Acrylic (PMMA) | 13.6 N/cm |
| Aluminum | 10.0 N/cm |
| Glass | 15.8 N/cm |
| HDPE | 3.8 N/cm |
| LDPE | 4.4 N/cm |
| Painted Metal | 15.8 N/cm |
| Polycarbonate (PC) | 15.8 N/cm |
| Polypropylene (PP) | 8.7 N/cm |
| PVC | 9.8 N/cm |
| Stainless Steel | 16.4 N/cm |
These are representative test results under specified laboratory conditions, not guaranteed values for every application.
Applications
- Industrial component bonding
- Bonding LSE plastics
- Bonding HSE plastics
- Powder-coated surface bonding
- Metal bonding
- Foam-to-plastic bonding
- Gasket attachment
- Label construction
- Nameplates and graphic applications
- Industrial laminating
- Die-cut adhesive components
- Electronics component assembly
- Automotive component bonding
- Appliance component assembly
- Rough-surface bonding
- General industrial assembly
3M specifically identifies bonding high- and low-surface-energy materials, powder-coated paints, foams to LSE substrates, gasketing and labeling as recommended applications.
Compatible Materials
Metals
- Aluminum
- Stainless steel
- Steel
- Painted metal
- Powder-coated metal
Plastics
- Polypropylene (PP)
- Polyethylene (PE)
- ABS
- Polycarbonate (PC)
- PVC
- Acrylic / PMMA
- Other high- and low-surface-energy plastics, subject to application testing
Other Materials
- Glass
- Epoxy
- Foam materials
- Coated surfaces
- Rougher industrial substrates
For LSE plastics, powder coatings and oily or contaminated surfaces, surface preparation and application testing are recommended to confirm the required bond performance.
Industries
- Automotive
- Electronics
- Electrical
- Appliance
- Industrial equipment
- Metal fabrication
- Plastic products
- Sign and graphics
- Labeling
- Packaging
- Furniture
- Construction
- General manufacturing
- Die-cutting and converting
Why Choose
1. High-performance acrylic adhesive
3M™ Adhesive 350 is engineered for applications requiring strong adhesion and high shear performance, including demanding industrial environments.
2. Excellent LSE adhesion
9445 is particularly useful when bonding difficult substrates such as many PE, PP and other low-surface-energy plastics.
3. Elevated-temperature capability
The adhesive system is designed for short-term temperature exposure up to 232°C and long-term exposure up to 149°C under the conditions specified by 3M.
4. Fiber-reinforced construction
The discrete glass-fiber reinforcement improves structural integrity and roll stability while helping minimize adhesive oozing during converting.
5. Excellent die-cutting potential
The fiber-reinforced adhesive and available liner constructions make 9445 suitable for industrial converting and precision die-cut adhesive components.
6. Strong chemical resistance
The adhesive provides resistance to moisture and various chemicals, making it suitable for demanding industrial environments.
Installation Guide
Step 1 – Surface Preparation
Clean the bonding surfaces thoroughly. Remove dust, oil, grease, moisture and other contaminants.
Step 2 – Surface Treatment
For difficult substrates such as LSE plastics, powder-coated surfaces or contaminated materials, evaluate whether additional cleaning or surface treatment is required.
Step 3 – Apply the Adhesive
Apply 3M™ 9445 evenly to the first substrate while avoiding wrinkles, air entrapment and contamination.
Step 4 – Apply Pressure
Use a suitable roller or laminating pressure to ensure intimate contact between the adhesive and substrate.
Step 5 – Remove the Liner
Peel away the kraft paper liner carefully without contaminating the exposed adhesive.
Step 6 – Bond the Second Substrate
Align the second substrate accurately and apply sufficient pressure across the entire bonding area.
Step 7 – Allow Bond Development
Although 3M pressure-sensitive adhesives can provide immediate adhesion, bond strength generally increases with time and contact. Allow adequate dwell time before applying demanding loads.
Important: Actual bond performance depends on substrate type, surface condition, temperature, pressure, bond area and application design. Testing under actual operating conditions is recommended.
Storage
Store 3M™ Adhesive Transfer Tape 9445 in a clean, dry environment away from direct sunlight and excessive heat.
Recommended storage conditions should follow the latest 3M technical documentation and the specific product packaging. Keep rolls properly protected to prevent contamination, moisture exposure and mechanical damage.
For long-term storage, maintain the original packaging until the material is ready for use.
3M documentation indicates a typical shelf life of 24 months from the date of manufacture when stored under recommended conditions.
FAQ
What is 3M 9445?
3M™ Adhesive Transfer Tape 9445 is a high-performance adhesive transfer tape using 3M™ Adhesive 350 modified acrylic adhesive. It is designed for high bond strength, excellent shear performance and bonding to a wide range of substrates.
Is 3M 9445 a double-sided tape?
Technically, 9445 is an adhesive transfer tape, rather than a conventional double-sided tape with a carrier. The adhesive is transferred from the release liner directly onto the bonding surface.
What is the thickness of 3M 9445?
The standard 9445 configuration has a 0.127 mm (5 mil) adhesive thickness excluding the liner.
Can 3M 9445 bond polypropylene?
Yes. 3M 9445 is designed to provide high adhesion to low-surface-energy plastics, including polypropylene. However, actual performance depends on the specific PP formulation and surface condition, so application testing is recommended.
Can 3M 9445 bond PE?
Yes. 9445 is designed for LSE substrates and can bond polyethylene. Representative 72-hour peel values are provided by 3M for both HDPE and LDPE.
Is 3M 9445 suitable for high-temperature applications?
Yes. 3M states that the adhesive system is designed for short-term temperature exposure up to 232°C (450°F) and long-term exposure up to 149°C (300°F). Application-specific testing is recommended.
Is 3M 9445 suitable for die cutting?
Yes. Its fiber-reinforced adhesive construction provides improved roll stability and resistance to adhesive oozing, making it suitable for converting and die-cutting applications when the appropriate liner and process are selected.
Does 3M 9445 have a carrier?
No traditional film, tissue or foam carrier is used. 9445 is an adhesive transfer tape consisting of pressure-sensitive adhesive mounted on a release liner.
What liner does 3M 9445 use?
The standard configuration uses a 55 lb densified kraft paper liner, approximately 0.08 mm (3.2 mil) thick. Other liner constructions may be available within the 3M Adhesive 350 platform for specialized converting requirements.
What is the difference between 3M 9445 and conventional double-sided tape?
Conventional double-sided tape normally contains a carrier such as tissue, PET, PVC or foam. 3M 9445 is an adhesive transfer tape, so it consists of adhesive on a release liner without a conventional carrier.
Downloads
Available upon request:
- 3M 9445 Technical Data Sheet (TDS)
- Safety Data Sheet (SDS)
- Product Brochure
- Precision Die-Cutting Capability Guide
Please contact our sales team if you require the latest technical documentation.
