Description
Pot Life / Shelf life
Shelf life
12 months at ambient room temperature in unopened condition. If stored in extreme heat locations the shelf life may be reduced.
Uses
Obaproof Con-Cure 111 is particularly useful in large areas of exposed concrete such as :
• Aprons, hard standing & retaining walls
• Prestressed beams and piers
• Highways, runways and taxiways
• Roof & bridge decks
• Column, beam & precast unit
Application
Products are supplied ready to use and should not be diluted. Stir well before use. Apply Obaproof Con-Cure 111 in a thin, even coat using spray equipment immediately after the free surface water has evaporated from the fresh concrete. Remove all loose particles and repair any honeycombs. Hold the spray nozzle approximately 500mm from the surface and move it back and forth for complete coverage. After application, protect Obaproof Con-Cure 111 from rain for at least 3 hours. The membrane typically disintegrates after 5 weeks if applied correctly (7m²/litre). If subsequent surface treatment is needed before the membrane disintegrates, remove the Obaproof Con-Cure 111 film. Do not apply Obaproof Con-Cure 111 to dry concrete, especially on vertical surfaces or soffits that may have partially dried out in shuttering. Ensure the concrete is well-wetted before application to avoid permanent staining.
Technical Data
• Curing Efficiency Index (BS 7542, 1992): > 75%
• Loss of water in 72 hours (ASTM C156-93r): < 0.65
• Liquid membrane-forming compound for curing concrete (ASTM C309-93): Comply
• Specific Gravity at 25°C : 1.02 – 1.05
• Dry Film at 30°C (approx.): 1 – 2 hrs