An ISO 9001:2000 Company

CERABOND EP is an epoxy resin based structural bonding agent used for ensuring monolithic bond between old and new concrete and is highly recommended for structural repair works. ADVANTAGES:

• Ideal for structural repairs

• Monolithic bond

• Capable of transmitting very high stresses

• Excellent water & alkali resistance

• Can be applied on dry as well as damp surfaces

• Can be cured under moist / wet conditions FUNCTION: In epoxy modified systems, cement hydration and epoxy polymerization occur simultaneously. The hardened resin forms thin layers on the cement hydrate and binds the hydrates to form a network in which the epoxy phase interweaves through the cement hydrate phase. The epoxy system thus develops high strength and adhesion and has low permeability, good water resistance and chemical resistance. USES: Cera Bond EP is highly useful for bonding fresh concrete to old concrete that is fully cured. Cera Bond EP can be used to bond sprayed concrete/mortar to old concrete surfaces. Cera Bond EP can be used on horizontal and vertical surfaces as a repair ingredient to corroded or spalled concrete. Cera Bond EP is ideally suitable for: - Jacketing applications for

strengthening the existing concrete

elements like columns, beams, basements etc.

- As a bonding agent for concrete repairs using cement plaster/screed and for guniting.

- As waterproof joint in sandwich constructions.

METHOD OF APPLICATION: Surface Preparation: To obtain good adhesion, it is essential to have a clean and sound substrate. All laitence, oil, grease etc, shall be cleaned by grinding, wire brushing, chipping, sand blasting or chemical etching. Mixing and application: The base and hardener in the specified proportion shall be mixed to get a uniform colour. The mixed material shall be applied on the prepared concrete surface with stiff bristled brush. The fresh concrete/cement mortar/guniting shall be carried out on a tack free surface which will be achieved within 30-60 minutes of application. The new concrete shall be placed within 4-6 hours time. For getting best results, the water- cement ratio of the new concrete shall be as minimum as possible.

CERABOND EP Epoxy bonding agent for structural concrete

Curing: Full curing takes around 5-6 days and it is absolutely essential that the repaired surface be cured properly. COMPATIBILITY: Cera Bond EP is compatible with all types of concrete, cement based grouts, polymer modified cement systems etc. PROPERTIES:

Compressive Strength (ASTM D 695) 75 N/mm2 Tensile Strength @ 7 day (ASTM D 638) 38 N/mm2

Bond Strength 15 N/mm2 Pull out Adhesion Strength @ 3 day (BS 1881: Part 207)

2.91 N/mm2

Pull out Adhesion Strength @ 7 day (ASTM D 4541)

15.4 N/mm2

Maximum overlay time 6 hours @ 35oC

Minimum overlay time 60 min

POT LIFE: The working time of Cera Bond EP depends upon the temperature. At 350C pot life is about 60 minutes. COVERAGE: Cera Bond EP will have coverage of 2 - 2.5m2/kg per coat. The coverage can vary depending on the surface condition. SHELF LIFE: 12 months in sealed container if stored below 35oC. PACKAGING: Supplied in 1, 6Kg ready to use units.

HEALTH & SAFETY: Avoid contact with skin for prolonged period. In case of any contact with eyes, wash immediately with plenty of water and seek medical attention. Please consult Cera - Chem. technical cell for further details.

Cera-Chem Pvt Ltd also manufacture and markets a wide range of products including:

• Concrete Admixtures • Water Proofing Systems • Tile Adhesives & Joint Grouts • Polymer Modified Structural Repair Products • Epoxies & Bonding Agents • Industrial Flooring •

Elastomeric Sealants • Anti-Corrosive Treatments • Non – shrink Cementitious Grouts • Epoxy Grout • Polyester Grouts • Curing compounds • Mould Release Agents • Construction fibers

Whilst any information and / or specification contained herein is to the best of our knowledge true and accurate, no warranty is given or implied in connection with any recommendation or suggestions made by us, our Representatives, Agents or Distributors, as the conditions of use of any labour involved are beyond our control.

Cera-Chem Private Limited SUPERIOR CONSTRUCTION CHEMICALS 71-C, New Avadi Road, Kilpauk, Chennai – 600010 Ph: +91-42183033, Fax: +91-26443621

Email: corporate@cerachemindia.com

www.cerachemindia.com

Edition: Nov 2011