Repair Systems
Curing compounds
Water-based acrylic concrete curing compound — technical reference for slab edge deterioration in Australian remedial building practice. Covers system selection, product comparisons, and brand equivalents.
What is curing compounds?
Curing compounds are liquid coatings — typically acrylic or wax-based emulsions — applied by roller or spray to freshly placed concrete or repair mortar surfaces to form a continuous membrane that retards moisture evaporation during the critical early curing period. Proper curing is essential for repair mortars: rapid moisture loss in the first 24–72 hours causes plastic shrinkage cracking and prevents full strength and bond development. A curing compound provides a practical, single-coat alternative to continuous wet curing with hessian and polythene, significantly reducing labour on exposed horizontal surfaces. The membrane must be fully removed — typically by mechanical abrasion — before any subsequent overlay, coating, or bonded topping is applied, as curing compound residue on the surface will prevent adhesion. Products should comply with AS 2990 or equivalent curing efficiency standards.
Product Reference
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System Description
Apply immediately after repair mortar finishing. Cure minimum 7 days before any trafficking.
Technical Properties
- Acrylic resin curing compound with AS 2990 compliance — established product for Australian remedial practice
- Spray-applied — fast and uniform coverage on large horizontal surfaces
- Suitable for fresh repair mortar and concrete curing during plastic and early hardening phase
- Available from Sika distributors nationally
Limitations
- Curing film must be fully removed by mechanical abrasion before applying coatings, overlays, or bonded toppings
- Does not substitute for the minimum 7-day wet cure required by AS 3600 in structural concrete aggressive exposure classes
- Acrylic membrane damaged by rain within 2 hours of application — protect or re-apply if early rain occurs
PROCUREMENT SOURCES
System Description
Apply immediately after repair mortar finishing. Cure minimum 7 days before any trafficking.
Technical Properties
- Water-based wax emulsion curing compound — current Australian SKU in the Fosroc Concure range (WB30)
- Low VOC formulation — preferred on enclosed or confined sites where solvent-based products are not permitted
- AS 2990 compliant curing efficiency — consistent moisture retention during early cure period
Limitations
- Residue must be completely removed by mechanical preparation before any bonded overlay or coating system is applied
- Not suitable as sole curing method for structurally critical repairs in severe exposure classes
- Confirm current product designation and coverage rate with Fosroc Australia before specifying
PROCUREMENT SOURCES
System Description
Apply immediately after repair mortar finishing. Cure minimum 7 days before any trafficking.
Technical Properties
- Mapei acrylic curing compound — part of the Mapei/Parchem concrete repair system
- Spray or roller applied — single-coat coverage on freshly placed repair mortar or concrete
- AS 2990 curing efficiency — moisture retention during plastic and early hardening stages
Limitations
- Membrane must be removed by grinding or scarifying before any subsequent bonded product application
- Curing function only — not a structural waterproof membrane
- Verify compatibility with specific Mapei mortar being used with Parchem representative
PROCUREMENT SOURCES
System Description
Apply immediately after repair mortar finishing. Cure minimum 7 days before any trafficking.
Technical Properties
- Water-based acrylic curing compound from the Tremco CPG Eucocrete concrete repair system
- AS 2990 compliant — single-coat spray or roller applied film forms a moisture-retaining barrier
- Low VOC — suitable for use on enclosed or partially enclosed sites
Limitations
- Film must be mechanically removed before any bonded topping, overlay or coating is applied
- Not suitable as the sole curing method for structural concrete in aggressive exposure classes
- Confirm current product name and availability with Tremco CPG Australia before specifying
PROCUREMENT SOURCES
Brand Equivalents
Side-by-side view of equivalent products across all major brands.
| Material | Ardex | Sika | Fosroc | Tremco / Other | Parchem / Mapei |
|---|---|---|---|---|---|
| Curing compound | — | Sika Antisol E | Fosroc Concure WB30 | Tremco Eucocrete WB Cure | Mapei Mapecure S |
Disclaimer
Information is general only. Product selection must be confirmed against project requirements, substrate condition, exposure class, manufacturer technical data sheets, NCC requirements, Australian Standards (including AS 3600), and consultant or structural engineer specifications. Do not rely on this reference as a substitute for professional engineering advice.
Concrete & Structural Defects
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