Repair Systems
Curing sheeting
200 micron LDPE polyethylene curing sheet — technical reference for concrete spalling in Australian remedial building practice. Covers system selection, product comparisons, and brand equivalents.
What is curing sheeting?
Polythene curing sheeting is heavy-duty plastic film used to cover freshly placed concrete or repair mortar and maintain a moist, closed environment throughout the required curing period — typically 3 to 7 days for repair mortars and specialist cementitious systems. Wet curing is the most reliable method of achieving full design strength and minimising shrinkage cracking; the sheet traps evaporating moisture within the repair, keeping the surface hydrated without requiring continuous water application. Unlike curing compounds, polythene sheeting leaves no surface residue and is therefore preferred in repairs that will subsequently receive bonded overlays, coatings, or primers where adhesion is critical. The sheet must be weighted or taped down to maintain contact with the fresh surface, kept wet between changes if not continuous, and re-applied promptly if disturbed by wind or site traffic.
Product Reference
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System Description
Lap joints 300 mm min. Tape all edges. Keep moist underneath for wet curing. Min 7 days.
Technical Properties
- Low-cost wet curing — no residue on surface, no adhesion concerns for overlays
- Ideal for horizontal surfaces where liquid compounds may run off
Limitations
- Labour-intensive to install, keep wet, and maintain over the full curing period
- Wind uplift on exposed sites — must be weighted or taped down continuously
PROCUREMENT SOURCES
System Description
Lap joints 300 mm min. Tape all edges. Keep moist underneath for wet curing. Min 7 days.
Technical Properties
- Low-cost wet curing — no residue on surface, no adhesion concerns for overlays
- Ideal for horizontal surfaces where liquid compounds may run off
Limitations
- Labour-intensive to install, keep wet, and maintain over the full curing period
- Wind uplift on exposed sites — must be weighted or taped down continuously
PROCUREMENT SOURCES
System Description
Lap joints 300 mm min. Tape all edges. Keep moist underneath for wet curing. Min 7 days.
Technical Properties
- Low-cost wet curing — no residue on surface, no adhesion concerns for overlays
- Ideal for horizontal surfaces where liquid compounds may run off
Limitations
- Labour-intensive to install, keep wet, and maintain over the full curing period
- Wind uplift on exposed sites — must be weighted or taped down continuously
PROCUREMENT SOURCES
System Description
Lap joints 300 mm min. Tape all edges. Keep moist underneath for wet curing. Min 7 days.
Technical Properties
- Low-cost wet curing — no residue on surface, no adhesion concerns for overlays
- Ideal for horizontal surfaces where liquid compounds may run off
Limitations
- Labour-intensive to install, keep wet, and maintain over the full curing period
- Wind uplift on exposed sites — must be weighted or taped down continuously
PROCUREMENT SOURCES
System Description
Lap joints 300 mm min. Tape all edges. Keep moist underneath for wet curing. Min 7 days.
Technical Properties
- Low-cost wet curing — no residue on surface, no adhesion concerns for overlays
- Ideal for horizontal surfaces where liquid compounds may run off
Limitations
- Labour-intensive to install, keep wet, and maintain over the full curing period
- Wind uplift on exposed sites — must be weighted or taped down continuously
PROCUREMENT SOURCES
Brand Equivalents
Side-by-side view of equivalent products across all major brands.
| Material | Ardex | Sika | Fosroc | Tremco / Other | Parchem / Mapei |
|---|---|---|---|---|---|
| Polythene sheeting (curing) | Tuff Wrap | Visqueen | Bunnings Builders Plastic | Packline Australia | Generic |
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.
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