Centrecoat Mortar Epoxy Tack Primer

Centrecoat Mortar Epoxy Tack Primer is a two-pack solvent free epoxy coating designed for use as a primer for epoxy mortars and screeds.

Best Uses

Centrecoat Mortar Epoxy Tack Primer is a two pack epoxy primer for use under Centrecoat mortars and screeds. It is also suitable for use as a bonding agent between new concrete and old.

Also, Centrecoat Mortar Epoxy Tack Primer ideal as a primer for concrete prior to the application of Centrecoat MMA Repair Mortar. Suitable as a protective treatment to exposed steel re-enforcement during concrete repair.

• Solvent free, low odour
• Excellent adhesion to concrete and steel
• Impervious to water
• Low viscosity, easily applied
• May be applied to cool, damp surfaces
• Pre-packaged units ready for use
• Very good chemical resistance

Application

Do not apply to wet or uncured concrete surfaces. The minimum application temperature is 5°C although please note that curing times will be significantly extended at low temperatures. Under certain site conditions below 10°C there is a risk of whitening (blooming).

Concrete surfaces should be a minimum of 21 days old and/or the residual moisture content shall be below 6%. Ensure that the concrete is clean and free from dust, laitance, grease, oil, curing compound, and existing paint finishes etc. Suitable mechanical treatment such as vacuum grit blasting or mechanical scabbling is recommended to ensure the removal of contaminants and to provide a mechanical ‘key’ for the Centrecoat Mortar Epoxy Tack Primer.

Steel reinforcement shall be abraded, wire-brushed etc. to remove all traces of rust. Priming should immediately follow preparation to obviate the possibility of flash rusting.

Centrecoat Mortar Epoxy Tack Primer is supplied in pre-weighed containers ready for mixing. Pour the contents of the CURING AGENT Container into the BASE container and thoroughly mix, preferably by mechanical means until a uniform consistency is achieved.

Apply by brush or roller at a nominal rate of 0.15 to 0.30kg/m². Ensure that the surface is thoroughly wetted out. Allow the primer to ‘tack up’ for a minimum of 10 minutes prior to the application of subsequent treatments. Please refer to the Centrecoat MMA Repair Mortar, or Centrecoat HB Lightweight Vertical Repair Mortar product data sheet as appropriate.

Note: In thin section the primer will remain ‘open’ for 90 minutes at 20°C, within which time subsequent application should be carried out. Should this period be exceeded then the surface must be re-primed prior to continuing.