Sikaflex® HY 100

Manufacturer: Sika
Product Type: Vertical Sealants

Short Description

Sikaflex® HY 100 is a high-performance hybrid sealant designed for extreme joint movement and long-lasting weather resistance. This low-modulus, fast-curing, and non-sag sealant provides superior adhesion to concrete, masonry, metal, wood, EIFS, and stucco, making it ideal for expansion joints, storefront systems, panel walls, and window frames.

Quantity Needed

Sikaflex® HY 100 is a premium hybrid sealant engineered for high movement, extreme weather resistance, and long-term durability. Designed with advanced Sika polymer technology, it combines the best qualities of organic and silicone sealants to create a flexible, low-modulus, high-performance joint sealant.

With ±50% movement capability, Sikaflex® HY 100 is perfect for sealing building joints against air and water intrusion, offering exceptional adhesion to a variety of substrates including concrete, masonry, metal, EIFS, stucco, and wood. It is fast-curing, non-staining, and compatible with elastomeric coatings, making it an ideal solution for commercial and residential sealing applications.

Key Benefits of Sikaflex® HY 100:

  • Superior adhesion to multiple substrates, including concrete, masonry, metal, EIFS, and stucco
  • ±50% movement capability ensures long-term joint flexibility
  • Resists chalking, cracking, and fading for long-lasting weatherproofing
  • Fast-curing and non-sag formula for easy application and quick job site completion
  • Low-modulus hybrid sealant for high flexibility in moving joints
  • Paintable and compatible with elastomeric coatings
  • Meets all State and Federal VOC regulations
  • Non-staining formula for use on natural stone and sensitive surfaces
  • Available in a tintable base to match custom color requirements

Common Applications:

  • Expansion joints and moving joints
  • Storefront systems and panel walls
  • Window and door frame sealing (Aluminum, vinyl, and wood)
  • EIFS, stucco, and fiber cement siding joints
  • Precast concrete and masonry wall joints
  • Parapets, fascias, and roofing sealant applications

💡 Available in 300 ml (10.1 fl oz) cartridges, 590 ml (20 fl oz) ProPaks, and 1.5-gallon tintable pails with a 1-year shelf life when stored properly.