Sika FastFix-121 Joint Sealant – Fast-Curing Repair for Concrete and Masonry
Sika FastFix-121 is a one-component, fast-curing cement-based joint sealant. The product is suitable for repairing and sealing cracks, joints and damage in concrete, masonry and natural stone.
Fast-curing – trafficable after 30 minutes, load-bearing after 2 hours
High adhesive strength on absorbent substrates such as concrete, cement and masonry
Suitable for interior and exterior applications in building and infrastructure
Repair of cracks, joints, edges and surface damage on concrete structures
What makes Sika FastFix-121 stand out
The fast-curing cement-based formula enables time-saving repairs without elaborate preparation. The high initial hardness and good adhesion to various substrates make the product a reliable solution for repairs in the construction and infrastructure sector.
Ideal for...
Sika FastFix-121 is designed for construction companies, trades businesses and facility managers who need to repair cracks and joints in concrete and masonry structures quickly and permanently. Particularly suitable for exterior applications on facades, foundations and traffic surfaces, where a rapid return to service is crucial.
Application of Sika FastFix-121
Thoroughly clean the substrate of loose particles, dust, grease and loose materials
On highly absorbent substrates, pre-moisten with water beforehand without leaving puddles
Mix Sika FastFix-121 with water according to the manufacturer's instructions and fill evenly into the damaged area
Smooth the surface after curing and return the driven-on or used area to service after 2–24 hours depending on the load
Sika is a Swiss specialist in construction chemicals and sealants with a broad range of repair and sealing products for the construction and infrastructure sector.
Sika FastFix-121 is used for repairing and sealing cracks, joints and damage in concrete, masonry and natural stone – both indoors and outdoors.
The product adheres to absorbent substrates such as concrete, cement screed, masonry and natural stone. Before application, these must be free of loose particles, dust and grease.
Sika FastFix-121 is trafficable after 30 minutes and load-bearing after 2 hours. The exact walkability and load-bearing capacity depend on the temperature and layer thickness.
The product is mixed with water according to the manufacturer's instructions, applied evenly to the damaged area, and the surface is smoothed after curing.
One container of Sika FastFix-121 weighs 12 kg (net weight of the product).
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