DUREBOND is a two-component epoxy system without solvents, offering excellent bonding to concrete and steel and high compressive and flexural strength, even when applied on damp substrates. It complies with the requirements of ASTM C 881-90, type II, Grade 2, Class B+C. It is classified as a structural bonding agent for mortar or concrete and as a produvt for concrete injection, according to EN 1504-4 and EN 1504-5. DUREBOND is used as a bonding bridge for bonding fresh concrete or mortar to old hardened concrete, mortar or metallic surfaces. DUREBOND is also used to repair concrete cracks wider than 3 mm by injection, in order to bond and restore the original monolithic structure. DUREBOND is an ideal aid for installing and anchoring reinforcement rods into existing concrete elements.
Substrate preparation
The application surface should be:
- Dry and durable
- Free of materials that prevent bonding, dust, grease, loose particles etc. and without standing water,
Mixing of the components
Components A (resin) and B (hardener) are packed in two separate containers, having the correct predetermined mixing proportion by weight. The whole quantity of copm. B is added into comp. A and they are mixed for about 5 minutes, using an appropriate hand tool or with a low speed mixer (300 rpm). It is important to stir the thoroughly mixture near the sides and bottom of the container, to achieve uniform dispersion of the hardener. In case less quantitu is required (than the onne available in the package), 5 parts by weight of comp. A and 1 part by weight of comp. B should be poured into a clean container and mixed as above.
DUREBOND is supplied in packages (A+B) of 1 kg and 4 kg with components A and B having a fixed proportion by weight. 12 months from production date, if stored in original sealed packaging, in areas protected from humidity and direcct sun exposure. Recommended storage temperature: between +5 oC and +35 oC.
