Sikaflex 1a Kit – One component polyurethane sealant (10 oz) 12-pack
One-component, moisture-cured polyurethane sealant suitable for vertical and horizontal concrete and masonry surfaces. Adheres to most materials without primer and resists aging and weathering. Customer note: easy to use with good adhesion, though durability and flexibility receive mixed feedback
Highlights
- one-component polyurethane
- non-sag elastomeric sealant
- excellent adhesion without primer
Pros
- easy-to-use formulation
- good adhesion to most materials
- moisture-cured, non-sag elastomeric
- works on green and damp concrete
Cons
- mixed durability and flexibility feedback
- concerns about shelf life
Best For
Features
- One-component, moisture-curing polyurethane sealant for concrete and masonry
- Non-sag elastomeric formulation with strong adhesion to most substrates without primer
- Cures to a durable, flexible material with about 35% movement capability
- Suitable for vertical and horizontal joints with depth not exceeding 1/2 inch
