Ronacrete Rapid Primer

Ronacrete Rapid Primer is a prebagged cementitious bonding primer comprising polymer liquid and rapid setting cements.

Best Uses

Ronacrete Rapid primer is used to provide a chemical bond between the substrate and new surfacing. It is only to be used with Ronacrete’s rapid setting mortars and concretes including RonaBond HB40 Ultra Rapid, RonaFloor Repair 1 Hour, RonaScreed Mortar and RonaScreed Concrete.

• Bonds new concrete to old
• Provides a strong chemical bond
• Multiple coats provide protection to steel
• Easy to apply

Application

Preparation
Mechanically prepare substrate in accordance with BS 8204 Part 3:1993. Provide structurally sound and clean substrate to receive high strength mortar / concrete. Damp the surface with potable water and apply to the damp surface. When repairing reinforced concrete do not damp reinforcing steel.

Mixing and application
Mix the primer using a drill and paddle mixer to form a creamy slurry. Using a brush or roller apply evenly over the surfaces ensuring total and uniform coverage taking care to avoid ponding. Only prime an area which can be covered by the rapid setting mortar/concrete within the working time of the primer.

When bedding building components such as bricks, brick slips, kerbs, paviours, prime the back of the component and the substrate. When repairing concrete, apply two coats of primer to the dry reinforcing steel and a single coat to the damp concrete. Note that the primer must not be allowed to dry. Apply the mortar/concrete to the wet/tacky primer. If the primer dries it must be thoroughly scratched and reapplied.