Fosroc Nitobond HAR 5L

Nitobond HAR is a ready-to-use, water-based polymer emulsion that primes concrete or masonry to ensure Renderoc repair mortars form a strong, durable, and monolithic bond with the parent substrate.

Features + Benefits:

High-Adhesion Primer: Creates a tough, flexible film that locks Renderoc mortars to sound concrete.
Single-Component Convenience: Supplied ready to apply—no on-site mixing or dilution errors.
Water-Based & Low-VOC: Safer for applicators and indoor environments compared with solvent systems.
Brush, Roller, or Spray Application: Low-viscosity formula spreads easily and penetrates surface pores.
Damp-Tolerant Bond: Maintains adhesion even on moist substrates, reducing downtime between preparation and repair.

Product Uses:

Priming concrete, screed, or masonry prior to Renderoc patch repairs and overlays;
Bonding thin screeds or toppings to existing slabs;
Enhancing adhesion on vertical and overhead repairs where gravity and vibration can challenge bond integrity.

Pack Size:

Available in 1 L bottles, 5 L pails, and 20 L drums to suit projects from small touch-ups to large-scale refurbishment.