Batimix Rebar-Protect 910

Description

BATIMIX Rebar-Protect 910 is a one-component organic zinc-rich primer. It is specially formulated with metallic zinc and epoxy resins. It is used in construction, repair, and rehabilitation works. It is highly recommended for corrosion protection of exposed steel reinforcements. It can be used in conjunction with all Batimix concrete repair products.

Main Purpose

BATIMIX Rebar-Protect 910 is an anti-corrosion coating for reinforcing steel in concrete restoration, whether above or below grade level. It also provides excellent adhesion to iron and steel surfaces, thus aggressively resisting corrosion within the repair area.

Features

BATIMIX Rebar Protect has the following characteristics:

• Ease of application
• Compatible for use with all Batimix repair products
• Acts as an effective barrier against penetration of water and chlorides
• High strength, unaffected by moisture and humidity when cured
• Excellent bonding to concrete and steel

Properties

• Appearance: liquid
• Density: around 1.92 kg / liter
• Pot life: around 8 hours at 23 ºC
• Drying time (touch dry): around 25 minutes at 23 ºC
• Drying time (hard dry): around 1 hour at 23 ºC
• Typical thickness: around 50 microns dry (or 100 to 150 microns wet)
• Theoretical coverage: around 3.5 m² / kg at 50 micron dry film

Health and Safety

BATIMIX Rebar-Protect 910 contains resin chemicals. It should not be swallowed or allowed to come into contact with skin and eyes. Suitable gloves and goggles should be worn. For additional information, kindly refer to the product’s Material Safety Data Sheet.

Directions for Use

1 – Steel preparation The exposed steel should be thoroughly inspected and any corroded steel must be removed by appropriate abrasive blast cleaning means. The abrasive blast should be carried out in accordance with the state-of-the art procedures. All surface defects revealed by the blast cleaning should be ground, filled, and treated in a suitable manner. Round off rough welds and sharp edges and remove weld spatter.

After ensuring all scale and corrosion deposits are eliminated, the application of BATIMIX Rebar-Protect 910 can then proceed. It is important to note that if corrosion is due to chlorides attack, the steel must be high pressure washed following the blasting cleaning.

2 – Application
The application of BATIMIX Rebar-Protect 910 should start when the steel surface is dry, normally within the 2 to 3 hours after the completion of preparation and cleaning works. Shake well prior to use. Apply the product in one full and unbroken coat, ensuring that all of the exposed steel is fully coated (take care of the back side of the steel). Should there any doubt in having achieved an unbroken coating, apply a second coat as soon as the first one is dry, i.e. normally after 25 to 60 minutes.

BATIMIX Rebar-Protect 910 can be applied using any conventional brush or roller. A spray gun or agitated air spray pot suitable for touch-up of small areas can also be used.

The steel surfaces treated with BATIMIX Rebar-Protect 910 must not be left exposed longer than necessary, i.e. 1 hour at 23 ºC, prior to beginning of concreting. This is particularly relevant in aggressive environment as the primer coating should be subjected to the repair materials as soon as possible.

3 – Curing / Limitations BATIMIX Rebar-Protect 910 will not cure properly if ambient temperature is below 5 ºC. For maximum performance, temperatures should be higher than 10 ºC.

Effect of Overdosing

Tests have shown that using BATIMIX Rebar-Protect 910 at overdose levels will not lead to additional rebar protection.

Compatibility

BATIMIX Rebar-Protect 910 is compatible with all types of Portland cement, replacement materials such as silica fume, and other BATIMIX admixtures used in the same repair system.

Technical Support

For proper products usage, Holderchem provides complete technical laboratory support and on-site assistance pertaining to the mortar mix design, admixture selection, and trial tests

Storage

BATIMIX Rebar-Protect 910 has a minimum shelf life of 6 months if kept unopened and stored at temperatures ranging from 2 to 50 ºC.

Packages

• 200 kg plastic drum
• 20 kg plastic pail
• 4 kg plastic pail