PATCHFIX STRUCTURAL HB

Bostik Patchfix Structural HB is a high strength, polymer modified cementitious repair mortar built for demanding structural repairs. It's a one-component system, so it's simply mixed with water, and it delivers high build repairs of up to 100mm in a single application. It provides superior shrinkage compensation, giving long term dimensional stability so repairs stay sound for the long haul.
It's suited to structural repairs on horizontal, vertical, and overhead surfaces, from terraces and balconies to sewer tunnels, dams, bridges, and concrete tanks. Its low permeability protects against chloride attack and carbonation, and its high build capability reduces or removes the need for formwork on vertical repairs.

Why choose Patchfix Structural HB?
Patchfix Structural HB reaches 60 MPa compressive strength at 28 days, with bond strength over 15 MPa to the existing concrete substrate, so repairs bond securely and carry real structural load. Its drying shrinkage keeps repairs dimensionally stable over time, and its low permeability protects reinforcement against chloride attack and carbonation, both common causes of concrete failure in marine and industrial settings. It's low VOC, tested to Australian and ASTM standards for strength, shrinkage, and abrasion, and it's proudly Australian made.

Where to use it
Patchfix Structural HB is used on sound concrete substrates and exposed steel reinforcement, at thicknesses from 10mm to 80mm vertically and 10mm to 100mm horizontally. 

TIP: Facing a thinner cosmetic repair or feather-edge finish rather than a structural build-up? Reach for Patchfix Fine Render instead. It feathers down to a true edge, while Structural HB stays the choice for high build, load-bearing repairs.