Sikaflex 1a Kit - One Component, Flexible Sealant for Concrete and Masonry
One-component, moisture-cured polyurethane sealant with high adhesion to most materials. Suitable for vertical and horizontal surfaces; non-sag elastomeric formula. Suitable for green and damp concrete applications; easy to apply. Customer notes emphasize good quality and ease of use
Highlights
- one-component polyurethane
- non-sag elastomeric sealant
- excellent adhesion to various materials
Pros
- high adhesion to most construction materials
- non-sag elastomeric sealant
- moisture cured; one component
- works on green and damp concrete
Cons
- durability and flexibility perceived variably by customers
- shelf life concerns noted by customers
Best For
Features
- Single-component, moisture-cured polyurethane sealant with strong adhesion
- Non-sag, elastomeric formula tolerates approximately ±35% movement
- Suitable for vertical and horizontal joints in concrete and masonry
- Designed for joints up to 1/2 inch deep for small joints and fillets
