Fasto UV92 - UV Adhesives

Fasto UV92 – High Strength UV Curable Adhesive for Glass Bonding

Fasto UV92 is a single-component, very low viscosity, UV-curable adhesive engineered to deliver super high strength, transparent, and flexible bonds when exposed to UV light. It is specially formulated for glass-to-glass and glass-to-metal bonding, where optical clarity, non-yellowing performance, and precision assembly are essential.

With its excellent capillary action, Fasto UV92 can easily wick into pre-assembled joints, making it ideal for decorative and engineering-grade glass assemblies.

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Key Features

  • UV Light Curing (≥310 nm)
    Rapid curing upon exposure to UV radiation.
  • Very Low Viscosity (~55 cPs)
    Enables capillary flow into tight and pre-assembled joints.
  • Super High Bond Strength
    Compressive shear strength on glass up to 27 N/mm².
  • Crystal Clear & Non-Yellowing
    Maintains long-term transparency and aesthetics.
  • Flexible Bond After Cure
    Absorbs minor stresses and vibrations.
  • Fast Fixture Time
    Achieves handling strength in less than 5 seconds under UV light.

Benefits

  • Creates invisible, high-clarity glass joints
  • Enhances aesthetic appeal of glass furniture and assemblies
  • Enables fast, controlled, and repeatable curing
  • Ideal for precision glass bonding applications
  • Reduces rework due to accurate and clean bonding
Primary Application Sub-Applications Functional Purpose Key Performance Advantage
High-Strength Glass-to-Glass Bonding Glass panels, precision glass joints Structural transparent bonding Very high compressive shear strength
Glass-to-Metal Bonding Decorative fittings, engineered joints Secure bonding of dissimilar substrates Excellent adhesion with optical clarity
Decorative Glass Assembly Furniture glass parts, aesthetic joints Clean, invisible joints Non-yellowing, crystal-clear bond
Engineering Glass Assemblies Load-bearing or precision glass components High-strength structural bonding Super high bond strength with flexibility
Pre-Assembled Glass Component Bonding Capillary joints, tight-fit assemblies Adhesive wicks into joints before curing Very low viscosity for capillary action
Precision Transparent Bonding Visible joints requiring clarity Maintains visual appearance Controlled UV curing after alignment
High-Accuracy Manufacturing Processes Assemblies requiring exact positioning On-demand curing after placement UV-activated, fast fixture time

Surface Preparation

  • Ensure bonding surfaces are clean, dry, and free from oil, grease, dust, and contaminants.
  • Protect the adhesive from premature UV light exposure before application.

Application Method

  1. Apply Fasto UV92 to one bonding surface.
  2. Assemble and align the parts accurately.
  3. Expose the bond area to UV light (310 nm or above) to initiate curing.
  4. Ensure complete exposure of the bond line for uniform curing.

Curing Guidelines

  • Fixture time:
    • <5 seconds @ 10 mW/cm²
    • <3 seconds @ 30 mW/cm²
  • Typical depth of cure: ~2 mm
  • Maximum recommended bond depth: ~3 mm
    (Greater depths possible using high-intensity UV lamps and longer exposure)

Additional Notes

  • UV lamps are recommended for controlled and repeatable curing.
  • Sunlight can cure the adhesive, but results may vary.
  • Use UV-opaque (black) tubing for dispensing systems to prevent premature curing.

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