Dexerials T4000 double-sided tape

1. Product Overview

Dexerials T4000 / T4000W Designed to meet severe working conditions Strong permanent structural bonding Research and development based on demand. The tape uses a special high-tenacity nonwoven fabric as the core carrier base material, and is coated on both sides with a high-polymerization, high-temperature-resistant acrylic pressure-sensitive adhesive.

This product combines excellent initial wet adhesion with ultra-high shear holding strength, as well as excellent temperature resistance and environmental aging resistance.Whether in metal panel stamping components or engineering plastic shell assembly, it can provide long-term and strong bonding force and is widely used in the structural assembly of automotive interiors and parts, smart home appliances, consumer electronics and various industrial nameplates.

2. Product core advantages (Key Features & Benefits)

1. Durable and strong permanent bonding (Permanent Bonding)

   The polymer acrylic adhesive system has excellent creep resistance and fatigue resistance, and the peel strength is as high as 100% under the standard test of stainless steel plates.14 N/20mm, providing stable mechanical anchoring effect for structural parts.

2. Excellent high temperature shear resistance and ultra-low creep (Superior Holding Power)

   exist 40°C, 60°C and 80°C Under continuous load (1kg weight suspension test), the slip creep amount of the rubber layer is only 0.3 ~ 0.4 mm, to eliminate the hidden dangers of displacement, degumming and adhesive overflow under long-term stress or heat environment.

3. Long-term thermal aging viscosity self-enhancing properties (Aging Reliability)

   exist 70°C continuous thermal aging environment, the colloid and substrate molecules penetrate and infiltrate each other, and the peel strength increases instead of decreasing over time (from about 14.2 N/20mm initially to 15 days later) 22.5 N/20mm above).

4. Full temperature range wide range adaptability (Temperature Resistance)

   It maintains a high level of anti-peel toughness from low temperature of 10°C to high temperature of 80°C (peel force reaches 28 N/20mm at 10°C, and remains above 11 N/20mm at 80°C), adapting to the harsh temperature difference between vehicles and outdoors.

5. Die-cutting and punching processing friendliness (Precision Die-Cutting)

   Non-woven fabric substrate provides good dimensional tensile stability, with T4000W double-sided release paper version to meet the needs of precision and complex special-shaped die-cut parts and automated production line split mounting processes.

3. Product structure and specifications

1. Structural exploded view description

• Release system: Special anti-adhesive release paper (single-sided release paper / double-sided release paper)

• Adhesive layer: Approx. 150 µm high-performance acrylic adhesive layer (double-sided)

• Carrier substrate: Special stretch-resistant nonwoven core material (Nonwoven fabric)

2. Series model comparison table

4. Detailed experimental performance test data

1. Bonding strength performance on different substrate surfaces (180° Peeling Strength)

Test conditions: tape width 20mm, 2kg pressure roller rolling back and forth once, 23°C/60%RH constant temperature for 1 hour, peeling speed 300mm/min, backing 25µm PET

• Polycarbonate (PC board): 15.4 N / 20mm(Extremely high adhesion)

• Acrylic: 14.9 N / 20mm(Extremely high adhesion)

• Stainless steel plate (SUS304): 14.2 N / 20mm(Excellent)

• ABS engineering plastic: 14.1 N / 20mm(Excellent)

• Aluminum alloy plate (AL): 13.0 N / 20mm(Excellent)

• Neoprene (CR) / Natural Rubber (NR): 3.2 / 2.8 N / 20mm(regular physical adhesion)

2. High temperature creep resistance and adhesion test

Test conditions: SUS304 stainless steel plate, fitting area 25mm × 25mm, hanging 1.0 kg weight load for 1 hour

• 40 °C test temperature: Creep slip displacement only 0.3 mm

• 60 °C test temperature: Creep slip displacement only 0.4 mm

• 80 °C test temperature: Creep slip displacement only 0.4 mm

  (Under the action of high-temperature baking and constant gravity shear force, the structure is extremely tight and stable, with no risk of slippage)

5. Typical recommended application scenarios

• Automotive electronics and interior and exterior decoration: Adhesion and fixation of dashboard decorative patches, door trim strips, reflector embedded components, car exterior metal signs and three-dimensional logos.

• Household appliances and kitchen appliance control panels: Permanent bonding of brushed aluminum plates, metal nameplates, and acrylic translucent display windows for refrigerators/washing machines/microwave ovens/air conditioners.

• Consumer electronics: Laptops, tablets, audio equipment casing components, dust-proof net buffer gaskets and battery compartment components are fixed.

• Industrial manufacturing and hardware marking: Permanent pasting of metal and engineering plastic signs on the surfaces of various mechanical control equipment, transformers, and industrial instruments.

6. Construction guidance and storage suggestions

1. Substrate surface cleaning: Before bonding, please ensure that the bonding surface is dry and free of dust, oil stains and release wax. It is recommended to use isopropyl alcohol (IPA) or medical alcohol for one-way cleaning.

2. Fully pressurized: Pressure-sensitive adhesive requires external mechanical pressure to activate surface wetting. It is recommended to use a pressure roller of more than 2kg for even rolling or pneumatic fixture clamping.

3. Curing time: It is recommended to let it sit for more than 24 hours after bonding at room temperature to obtain the best bonding strength.

4. Warehousing conditions: Store in a ventilated and light-proof warehouse at 20~25°C and relative humidity of 50~60%. The recommended shelf life is 12 months.