Dexerials NP605 Special resin-based hot melt double-sided tape
Product Overview
Dexerials NP605 is a high-performance hot-melt double-sided tape (Hotmelt Double Coated Tape) with special resin as the base material and non-woven fabric as the middle core material. The tape has low-temperature heat activation properties and can achieve bonding at a minimum of 90°C. It can exhibit excellent adhesion at 100°C and above and maintain stable bonding strength over a wide temperature range. The adhesive surface is tack-free at room temperature and supports punching, die-cutting and processing operations without release paper, which can significantly improve the appearance design and assembly quality of the end product。
Core Features
Low-temperature thermal activation: Activation bonding can begin at 90°C, and excellent bonding force can be fully exerted above 100°C。
Wide temperature range stability: After curing and bonding, excellent bonding force can be maintained in a wide temperature range。
Non-sticky at room temperature (easy to process): The surface is not sticky at room temperature, punching, die-cutting and waste removal processing are smooth, and it is not easy to overflow glue or stick to the jig。
Excellent bonding of metal and plastic: Designed for high-reliability composite fixation of various plastics (ABS, PS, PC/ABS, etc.) and metal materials (aluminum plates, stainless steel, SUS, etc.)。
Basic structure and physical parameters
| Inspection items | Specifications PDF | Remarks/Test Standard PDF |
| Main components of adhesive | Special resin base | Hot melt type |
| Substrate (Carrier) | Nonwoven fabric | Middle core layer |
| Color | Translucent white | — |
| Total tape thickness | About 85 µm | Double-sided tape contains base material |
| Release paper thickness | About 60 µm | — |
| Adhesive strength (breaking strength) | 98.1 N / 40mm × 40mm | Aluminum plate and ABS bonded (hot pressing 120°C) |
| Standard roll size | 400 mm (width) × 100 m (length) | Roll supply |
Recommended hot pressing process conditions
Hot pressing temperature: 90°C ~ 140°C
Hot pressing time: 8 ~ 15 seconds
Hot pressing pressure: 0.2 ~ 0.3 MPa
Technical measured data and reliability performance
Cleavage strength at different hot pressing temperatures:
Test conditions: aluminum plate (t=0.4mm) and polystyrene PS plate (t=5mm), bonding area 40×40mm, pressure 0.3MPa, hot pressing time 10 seconds。
The breaking force under hot pressing at 90°C has reached approximately 215 N; when the temperature rises to At 110°C~140°C, the bonding force is stable at 230 ~ 250 N / 40×40mmHigh quality。
Hard working conditions tolerance and aging reliability:
Hot and cold cycle test (-30°C×3h + 70°C×3h,Cycle 10 times): The breaking strength of the sample at each hot pressing temperature remains stable at 200 ~ 270 N.
High temperature and high humidity aging (65°C / 80%RH for 7 days and 14 days): The bonding interface has excellent performance, the strength is maintained above 200 ~ 350 N, and there is no degumming and embrittlement
Adhesive strength (temperature resistance test) under different operating temperature environments:
In a low temperature environment of -40°C ~ 0°C, the breaking strength exceeds 300 N。
Normal temperature 20°C is about 250 N, even at 60°C it is still about 160 N, and the bonding force (about 90 N) is still maintained at 80°C high temperature
Shear strength at different hot pressing temperatures:
Test conditions: stainless steel SUS board (t=0.5mm) and PC/ABS board (t=5mm), bonding area 20×20mm (4 cm²), pressure 0.3MPa, holding pressure 10 seconds。
Shear force at 90°C is 126 N; At a lamination temperature of 100°C ~ 150°C, the shear strength is stable at 156 ～ 175 N / 4cm²。
Applicable fields
Composite fixation of metal decorative parts and plastic casings for various handheld smart terminals, home appliances and instrument panels。
Structural pasting between the speaker grille, earpiece metal mesh and plastic middle frame。
Structural bonding parts that require no solvent evaporation, excellent temperature resistance and precision die cutting and punching.
