RonaFloor Repair 1 Hour 25mm+ is a polymer modified repair mortar designed for rapid strength gain and/ or low temperature use; after 1 hour of curing @ 20ºC the material is sufficiently strong for foot traffic and light vehicle traffic and for heavier traffic after 2 hours of curing @ 20ºC.

Quick Links - Click To Jump To Section:

• Features & Benefits
• Working Time and Mixing
• Floor Repair
• Bedding Kerbs, Paviours, Copings
• Working Temperatures
• Repair Volume and Size Limitations

Features & Benefits

• Ultra-rapid strength gain
• High ultimate strengths
• Foot traffic and light wheeled traffic after only 1 hour @ 20ºC
• Heavier traffic after only 2 hours @ 20ºC
• Low temperature application, minimum working temperature –10ºC
• Pre-packed for ease of use and assured quality
• Application from 25mm thickness
• Water and frost-resistant

Working Time and Mixing

RonaFloor Repair 1 Hour 25mm+ is a rapid set mortar system, designed for mixing in small volume.

The working time is approximately 10-15 minutes, dependent on material and ambient temperature. It must therefore be mixed close to the area of application so that it can be placed and finished before initial set.

For larger volume work where rapid strength gain is required, please contact Ronacrete/Rawlins Technical on 0113 2455450 (option 2) or send a message to [email protected].

Floor Repair

1. Saw cut repair perimeters to produce a vertical edge 25mm minimum and remove materials within the repair, as required, to ensure that a minimum repair thickness of 25mm can be achieved
2. Prepare concrete by mechanical abrasion to produce a textured surface and remove friable material
3. Thoroughly clean to remove grease, oil and other contaminants which may impair adhesion. Vacuum clean to remove loose materials, dust and debris
4. Ensure that the substrate is sufficiently strong to restrain the repair
5. Wet the surface with clean water; soak very porous surfaces for up to 24 hours; remove all standing water before priming the damp substrate
6. Mix Ronacrete Rapid Primer with a slow speed drill fitted with an MR2 type spiral paddle and apply, ensuring total uniform coverage
7. Only prime an area which can be covered by the mortar within the working time of the primer
8. Mix RonaFloor Repair 1 Hour 25mm+ with a slow speed 1kW drill fitted with an MR4 type helical paddle, close to the area of application, pouring the supplied gauging liquid into a mixing vessel and gradually adding the powder component
9. Trowel apply the mixed material to the wet or tacky primer, compact and close the surface with a float or trowel. Dry primer must be thoroughly abraded and a fresh coat applied
10. Protect the surface until sufficiently hard (typically 1 hour at 20°C)

Bedding Kerbs, Paviours, Copings

1. Prepare the substrate by mechanical abrasion to produce a textured surface and remove friable material
2. Thoroughly clean to remove grease, oil and other contaminants which may impair adhesion. Vacuum clean to remove loose materials, dust and debris
3. Ensure that the substrate is sufficiently strong to restrain the repair
4. Wet the surface with clean water; soak very porous surfaces for up to 24 hours; remove all standing water before priming the damp substrate
5. Mix Ronacrete Rapid Primer with a slow speed drill fitted with an MR2 type spiral paddle and apply, ensuring total uniform coverage
6. Only prime an area which can be covered by the mortar within the working time of the primer
7. Mix RonaFloor Repair 1 Hour 25mm+ with a slow speed 1kW drill fitted with an MR4 type helical paddle, close to the area of application, pouring the supplied gauging liquid into a mixing vessel and gradually adding the powder component
8. Trowel apply the mixed material to the wet or tacky primer, compact and produce a textured surface for bedding of the component
9. Dry primer must be thoroughly abraded and a fresh coat applied
10. Prime the contact surface of the component and press into the fresh mortar, ensuring intimate contact. Ensure that neither primer nor mortar makes contact with visible surfaces of the unit, porous surfaces will stain

Working Temperatures

RonaFloor Repair 1 Hour 25mm+ can be used in most weather conditions and in a wide temperature range, typically from -10°C to 25°C.

At high ambient temperature the working time of the mix will be considerably reduced; it will be increased at lower temperatures.

Care must be taken when using RonaFloor Repair 1 Hour 25mm+ in extreme temperatures to ensure that the water used for damping, and the primer, does not freeze or dry/ evaporate on or soon after contact with the substrate.

Repair Volume and Size Limitations

Consideration should be given to the rapid exothermic reaction of very fast setting materials applied in large volume or large areas; the reaction is controlled in small patch repairs but thermal cracking can occur in larger repairs.

Contact Ronacrete/Rawlins Technical for advice about large repair areas or use in large volume on 0113 2455450 (option 2) or send a message to [email protected].