ThreeBond 1549B water-based pressure-sensitive adhesive for screen printing (can replace double-sided tape)

Product Overview

ThreeBond 1549BIt is a high-performance water-based acrylic emulsion pressure-sensitive adhesive (pressure-sensitive adhesive) specially designed for the screen printing process.. After drying, this product forms a colorless, transparent and highly viscous adhesive film, which can achieve high-precision partial gluing and special-shaped pattern coating through screen printing.。

This product can be widely printed on the surface of various plastics, paper, metal sheets, decorative panels and other substrates. It has excellent bonding performance and is an ideal choice for industrial manufacturing.Replace traditional die-cut double-sided tapeAn ideal environmentally friendly solution that can significantly simplify the assembly process and reduce material loss。

Core advantages and features

• Precision positioning and free design:Developed specifically for screen printing, it can easily achieve precise local coating of dots, lines, grids or special-shaped borders, breaking through the styling limitations of double-sided tape die-cutting.。

• Alternative to double-sided tape:After coating and drying, it has excellent initial adhesion and peel strength, effectively replacing traditional double-sided tape and greatly improving the efficiency of automated and semi-automatic lamination.。

• Green, environmentally friendly and safe:Water-based emulsion system, milky white emulsion, solidifies into a transparent film after drying, low VOC emission。

• Broad substrate adhesion:It has long-lasting and stable adhesion to PS, ABS, acrylic (PMMA), PVC, PET and other engineering plastics, metals and panel materials.。

• Excellent weather resistance and aging resistance:After curing, the bonding force remains stable and long-lasting when placed in low temperature (-40℃), normal temperature, medium-high temperature (70℃) and high temperature and high humidity (60℃ × 95% RH) environments for a long time.。

Basic physical parameters

[Adhesive performance reference data]

1. Adhesion strength of different materials (standard drying: 55℃ × 15 min, dry film thickness: 40~50 μm)

• PVC / PS：90° peel strength 470 N/m (1.2 kgf/25mm), shear strength 430 kPa (4.4 kgf/cm²)

• PVC / ABS：90° peel strength 390 N/m (1.0 kgf/25mm), shear strength 500 kPa (5.1 kgf/cm²)

• PVC/Acryl:90° peel strength 430 N/m (1.1 kgf/25mm), shear strength 520 kPa (5.3 kgf/cm²)

• PET / ABS：90° peel strength 550 N/m (1.4 kgf/25mm)

• PET/Acryl:90° peel strength 549 N/m (1.4 kgf/25mm)

2. Effect of mesh and film thickness on peeling force

• 80 mesh stainless steel wire mesh:Dry film thickness 60~70 μm, PVC/PS peel strength up to1.4 kgf/25mm

• 100 mesh stainless steel wire mesh:Dry film thickness is 50~60 μm, PVC/PS peel strength is approx.1.2 kgf/25mm

• 120 mesh stainless steel wire mesh:Dry film thickness is 40~50 μm, PVC/PS peel strength is approx.1.1 kgf/25mm

  (Note: The thicker the adhesive film, the higher the peel strength is usually. Customers can adjust the screen mesh according to the bonding requirements.。)

3. Weathering and aging stability (PVC/PS 90° peel strength change)

• Ultra-low temperature environment (-40℃):After 60 days of storage, the strength remains at432 N/m

• High temperature environment (70℃):After 60 days of storage, the strength remains at432 N/m

• Double 85/humid heat environment (60℃ × 95% RH):After being placed for 60 days, the bonding strength can be improved and stabilized at510 N/m, showing excellent high temperature and humidity tolerance

[Recommended application areas]

1. Nameplate and signage fit:Screen printing adhesive for plastic, metal signs and decorative covers of home appliances, instruments, and automobile interiors。

2. Membrane switch and key panel:Replaces double-sided tape and is used for local gluing around membrane switches, conductive circuit spacers and light-transmitting windows.。

3. Consumer electronics and display components:Positioning and bonding of window lenses, dust screens, buffer gaskets and special-shaped plastic parts。

4. Paper products and decorative components:Partial bonding processing of special packaging boxes, folding sheets, display racks and decorative panels。

[Recommended techniques and precautions]

1. Recommended printing mesh:It is recommended to use 80 ~ 120 mesh stainless steel wire mesh or polyester wire mesh, and the dry film thickness is recommended to be controlled at 40 ~ 70 μm。

2. Drying and curing conditions:It is recommended to force dry in the drying tunnel/oven after printing. The reference conditions are:55℃ × 15 minutes(It can also be adjusted according to the line speed and film thickness of the production line)。

3. Surface cleaning:Before printing, make sure the surface of the substrate to be bonded is clean, dry, and free of oil and release agents.。

4. Fitting and pressing:Apply appropriate pressure when bonding (roller pressing or jig pressing is recommended), and let it sit for 24 hours after bonding to achieve optimal adhesion.。

5. Storage instructions:Store in a sealed indoor place away from light and in a cool place (storage temperature 5 ~ 35℃), strictly prevent exposure to sunlight and freezing. The container should be sealed immediately after use to prevent the surface from drying out.。