Single-Component Epoxy Zinc Primer.

dura.®rep ZR primer is a single-component liquid epoxy resin, enriched with metallic zinc, offering excellent corrosion protection properties when used in conjunction with a.b.e.®‘s dura repair systems.

dura.®rep ZR primer is recommended as an anti-corrosion primer for exposed steel reinforcement, for use with dura repair mortars. dura.®rep ZR primer actively resists corrosion in the repair area and avoids the generation of incipient anodes in the adjacent areas.

Advantages
  • Zinc enriched, prohibits corrosion through electro-chemical action.
  • Provides longevity of repair.
  • Single-pack system allows for flexibility during application.
  • Easy to apply – touch dry after 30 minutes.
  • Exhibits excellent corrosion protection of steel
  • Economical – single component ensures almost no waste.
Surface Preparation

All metal to be coated must be clean, mechanically sound and dry. Expose all corroded reinforcing steel and grit blast. A clean bright finish is required ensuring that all corrosion products are removed particularly behind the steel. The anchor pattern should be approximately 40 to 60 microns from peak to valley. Prime before flash rusting occurs, normally within 3 hours of cleaning.

Coverage

dura.®rep ZR primer will cover 7,1 m2 per litre. This coverage is theoretical – various points need to be considered, like surface profile i.e. the smoother the surface the greater the coverage will be, and therefore practical coverage rates may vary.

Typical Physical Properties
Relative density 1.98
Recommended thickness (dft)/coat 43 microns
Recommended thickness (wft)/coat 140 microns
Drying times
Touch dry 20°C 35°C
30 mins 20 mins
Fully dry (recoatable) 20°C 35°C
50 mins 30 mins
Application

Thoroughly stir the product before use in order to redisperse any settlement that may have occurred.

After the preparation of the steel, the application of dura.®rep ZR primer must commence as soon as possible. The reinforcing steel surface is to be dry and the priming must be completed within 3 hours.

Using a suitable brush, apply a single coat of dura.®rep ZR primer to the clean, prepared reinforcing steel and allow to dry. Note that this single coat should be continuous and unbroken leaving no open pits or air holes where corrosion could set in.

Should any doubt exists about obtaining a continuous unbroken film, apply a second coat after the first coat has fully dried (generally after 30 minutes).

The primed surfaces should not be left exposed to the elements for longer than necessary before application of the repair material.

The application of the repair materials should commence soon after the dura.®rep ZR primer has fully dried. Do not leave the primer exposed for more than three days.

Cleaning

dura.®rep ZR primer should be removed from tools and mixing equipment using abe® super brush cleaner immediately after use.

Protection on Completion

Ensure that all surfaces primed are kept clean and free of contaminants prior to further product applications.

Temperature & Relative Humidity

dura.®rep ZR primer should not be applied when the temperature is below +5°C and falling. If any doubt arises concerning temperature or application conditions, consult a.b.e.® Construction Chemicals‘ technical department.

Model Specification

Single-pack, zinc-rich epoxy for coating of reinforcing steel prior to concrete repair.

The steel primer will be dura.®rep ZR, a single-pack zinc-rich epoxy coating applied in accordance with the recommendations of a.b.e.® Construction Chemicals. The primer will have drying time of 30 minutes at 20°C and be compatible with the dura.®rep concrete repair system.

Packaging

dura.®rep ZR primer is supplied in 1 litre metal containers.

Handling & Storage

This product has a shelf life of 12 months if kept in a dry cool place in the original packaging. In more extreme conditions this period might be shortened.

Store in dry conditions in the original containers. If stored at high temperatures and/or high humidity conditions the shelf life may be reduced.

dura.®rep ZR primer is flammable. Keep away from sources of ignition. No smoking. In the event of fire, extinguish with CO² for foam. Do not use a water jet.

Health & Safety

Wet dura.®rep ZR primer is toxic and flammable. Ensure the working area is well ventilated during application and drying. Avoid flames in vicinity. Always wear gloves when working with the material and avoid excessive inhalation and skin contact. If material is splashed in the eye, wash with copious quantities of clean water and seek medical attention.

Important Note

This data sheet is issued as a guide to the use of the product(s) concerned. Whilst a.b.e.® Construction Chemicals endeavors to ensure that any advice, recommendation, specification or information is accurate and correct, the company cannot – because a.b.e.® has no direct or continuous control over where and how a.b.e.® products are applied – accept any liability either directly or indirectly arising from the use of a.b.e.® products, whether or not in accordance with any advice, specification, recommendation, or information given by the company.

Further Information

Where other products are to be used in conjunction with this material, the relevant technical data sheets should be consulted to determine total requirements. a.b.e.® Construction Chemicals has a wealth of technical and practical experience built up over years in the company’s pursuit of excellence in building and construction technology.