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Sika Sikaflex 255 Ultra Windscreen Adhesive Primerless Auto Glass Urethane Silicone Sealant 310ML - Black

Sika Sikaflex 255 Ultra is a one-component, moisture-curing polyurethane adhesive designed for automotive glass replacement. It offers strong bonding strength, excellent flexibility, and can be applied without primer on most modern automotive glass. Ideal for professional windscreen installation.


Specification

  • Brand: Sika
  • Product Type: Auto Glass Adhesive
  • Model: Sikaflex 255 Ultra
  • Colour: Black
  • Packaging: 310ML Cartridge
  • Base Material: Polyurethane (1-Component)
  • Curing Method: Moisture-curing
  • Density: ~1.31 kg/L
  • Skin Time: ~40 minutes (23°C / 50% RH)
  • Hardness: Shore A 50
  • Tensile Strength: ~5 MPa
  • Elongation at Break: ~500%
  • Operating Temperature: +5°C to +40°C
  • Shelf Life: 9 months (below 25°C)


Features

  • Primerless adhesion to glass (no black primer needed).
  • Fast curing and strong initial tack.
  • Easy application using a standard manual gun.
  • Solvent-free and low odour.
  • OEM approved for professional auto glass replacement.


Advantages

  • Saves time with primerless bonding.
  • Excellent elasticity absorbs vibration and impact.
  • Reliable adhesion under tropical weather.
  • Safe, low-odour working environment.


Application

  • Designed for automotive glass installation and windscreen replacement.
  • Suitable for “Black Primerless / All Black” glass bonding process.
  • Surfaces must be clean, dry, and free of dust or oil before applying.


Suitable For

  • Automotive workshops and glass installers.
  • Cars, vans, and commercial vehicles using modern glazing systems.


Certification

  • Complies with FMVSS 212 (windshield retention safety standard).
  • OEM Approved for vehicle manufacturers.