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FastelTack ST2 was created as a high performance acrylic-based pressure sensitive adhesive with excellent long-term adhesion to a wide variety of substrates. FastelTack is an unsupported acrylic pressure sensitive adhesive supplied on a moisture stable polycoated release liner available in continuous rolls, slit rolls, die cuts formats, or prelaminated by Fastel Adhesives to a wide range of substrates including aluminum, copper, stainless steel, PET Films, polyimide films, and customer required substrates. FastelTack ST2 has excellent long-term adhesion over a wide temperature range, as well as superior long-term aging properties. When in contact with flexible PVC, ST is designed to provide excellent resistance to plasticizer migration. ST exhibits sunlight resistance and moisture, solvents, mild acid, mild alkali, oil and grease.

Product Type: Pressure Sensitive Adhesive

Compatible Substrates & Surfaces: Aluminum, Copper, Metal, Plastics, Polyethylene Terephthalate (PET), Polyimide, Stainless Steel

Chemical Family: Acrylics & Acrylates

Features: Acid Resistant, Alkali Resistant, Chemical Resistant, Excellent Solvent Resistance, Excellent Substrate Adhesion, Excellent Wetting Behaviour, Good Adhesion, Good Bonding Strength, Good Sunlight Resistance, Grease Resistant, High Performance, Improved Ageing Resistance

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family

Features & Benefits

Features
  • Excellent long term bond and sheer strength
  • Fast Wet Out / Plasticizer Resistant
  • Excellent Chemical Resistance
  • Mounting / Die Cutting / Component Assembly
Characteristics / Formats

Adhesive Type: Acrylic (aggressive)
Available Thickness: 2 Mil (0.05mm) / 4 mil (0.10mm)
Adhesive Color: Clear
Liner Type: Poly‐coated release liner
Liner Thickness: 5.5 Mil (0.14mm)(76#)
Delivery Formats: Continuous Log or Slit Rolls / Die Cuts
Substrate Pre‐lamination: Yes, contact Fastel to learn more about substrate lamination options
Fastel Die Cuts: Individual die cut pieces Continuous die cut rolls

Applications & Uses

Popular Mounting Surfaces
  • Aluminum / Copper / Stainless
  • ABS / Styrene / Vinyl
  • Glass / FR4 / Wood / Paper
  • PET / Polyimide / Plastics
Pre‐Lamination Substrate Options
  • Aluminum / Copper / Stainless Steel Foils
  • PET Films
  • Polyimide Films
  • Polypropylene Films
  • Polyethylene Films
  • Customer Defined Substrates

Properties

Color
Physical Properties
ValueUnitsTest Method / Conditions
180°Peel PET / SS (20 min Bond)56.0oz/inch
Creep Resistance (500g/0.25in2)120.0hours
Temperature Range‐54 to 121°C
Shear Adhesive Failure Temperature (Cohesive Failure)115.0°C

Packaging & Availability

Packaging Type
Construction
  • Poly‐coated release liner
  • Acrylic Adhesive (2 mil or 4 mil)