• Substrate Preparation: The substrate must be firm, clean, dry and have a tensile strength of 1.5 N/mm² minimum. Wet areas shall be dried with a blow torch. The moisture content in the substrate must not exceed 4 CM%. New concrete must be allowed to cure for a minimum of 28 days. Repair imperfections (holes and cracks) with an epoxy patching compound such as DUPOXY SL where necessary. Remove surface laitance, contaminants, coating, curing compound, and all weak and loose materials. Prepare substrate by Captive Shot Blasting.

• Primer: Apply an epoxy floor coating such as DUPRIME 200 by roller to the prepared surface. If the surface is porous, a second coat of primer may be necessary. To improve inter-layer adhesion, sprinkle 0.2-0.5 mm quartz sand lightly (approx. 600 g/m²) while the primer is still wet. The mortar coating must be applied within 24 hours after the primer has been laid.

Procedure

• Before starting the application, the material temperature must be close to site conditions. Empty the content of component B (Hardener) into component A (Base Resin). Mix with a suitable mixer at a speed of 500 rpm to avoid incorporating excessive air into the mix. Mix for 2 minutes. Transfer the mixture to another clean container and mix for 1 minute. Component C is premixed dry in a force action pan mixer. Afterward, the mixed binder is added and mixed with Component C for a minimum of 3 minutes. The mortar is applied onto the primed surface at a minimum layer thickness of 7-9 mm using a screed box, pin rake, or hand trowel and finished off by hand or specially designed ‘helicopter’(refer DUCON). After the mortar has cured, the surface is self-sealing and hence there is no need for any further sealing.