Restauro Ferri

Demolish the degraded concrete until the rebars are exposed. Remove, by careful hammering and chiselling, cement residues and loose, crumbling, inconsistent parts until the sound, durable substrate is reached. Expose the reinforcement rods on the surface, completely releasing them from the grip of the carbonatated concrete, then all around the circumference, even in apparently healthy areas. Clean the iron well until it is “white” (until it becomes shiny) using a hydro-sandblaster or dry sandblaster to remove dust, release agent or paint residues, cement slurry, loose surface coatings and rust. In case of limited degradation, manual cleaning with a steel brush or other usual equipment is sufficient. If it is necessary to supplement the reinforcement with additional reinforcement, or to replace parts of the old reinforcement which have deteriorated too much and can no longer fulfil their function, the new reinforcement must also be treated in the same way, i.e. it must be treated until it is “white”.re

Instructions for use

Mix Restauro Ferri with approx. 24-26% of water (1.2-1.3 litres of water per 5 kg bag) until a homogeneous mixture is obtained. Apply by brush on the entire surface of the rebars, in two coats, in a total thickness of at least 2 mm, waiting about 2 hours between one coat and the other. The mixture workability time is 60 min. at 20 °C. At high temperatures, avoid direct exposure to the sun and mix with cold water and apply during cooler hours. The product can also be used as an adhesion promoter on the substrate to be reintegrated; in this case, wait at least 6 hours after application on the reinforcement rods, apply a second coat both on the reinforcement rods and on the substrate, wait for an initial hardening before continuing with the volumetric filling.

Storage

Restauro Ferri must be stored in a dry and sheltered place. In the original closed bags it is kept for at least 24 months. PROTECT FROM HUMIDITY.

Warnings

• As with all cement-based products, never carry out work and applications at temperatures below +5 °C.
• Never mix with other binders such as cement, hydraulic lime, gypsum, etc.
• Stop using the mixed product when it has already started to set, so take care to prepare from time to time a quantity of mixture that can be applied within its workability time.