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Long lasting, heavy-duty formula for concrete repairs in cold temperatures, making it ideal for winter use and cold room conditions. Provides superior strength and adhesion making it ideal for very thin section, feather- edge or intricate repairs.
- Cures at 0°C
- Virtually indestructible
- Impervious and non-dusting
- So strong it can be feather-edged
- Maximum strength is achieved at only 5mm thick. May be applied at up to 50mm thick for patch repairs
- Areas of use include permanent repairs for:
- Holes in concrete floors, damaged steps, broken floor joints
- Eroded, uneven concrete, worn and holed floors
- Fitting guide rails, spalled expansion joints
Note: While great care is taken with the colour samples shown, no guarantee can be given that they represent exactly the colours offered.
Watco Concrex Cold Set provides heavy duty floor repairs in temperatures as low as 0°C.
Compared with other repair mortars this formulation is particularly rich in epoxy resin. This provides superior strength and adhesion making it ideal for very thin section, feather- edge or intricate repairs.
Maximum strength is achieved at only 5mm thick. May be applied at up to 50mm thick for patch repairs.
A primer is not generally required, Watco Concrex Cold Set can be used to repair holes with minimal preparation - see section headed ‘Priming’.
In common with all Watco Concrex products, Watco Concrex Cold Set has good resistance to a wide range of chemicals commonly found in industry.
A repair using Watco Concrex Cold Set is ready for light traffic in 24 hours at 0°C, or 6 hours at 10°C.
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Features & Benefits
- Areas of use - permanent repairs for:
- Holes in concrete floors
- Damaged steps
- Broken floor joints
- Eroded, uneven concrete
- Worn and holed floors
- Fitting guide rails
- Spalled expansion joints
- Heavy-duty, two-part epoxy resin mortar
- Cures at 0°C for all year-round maintenance
- Virtually indestructible
- Coloured and deep fill versions available
- Good chemical resistance
- Resin rich for thin section and feather-edge repairs
- Suitable for interior and exterior repairs
Surface Preparation
Surfaces should be clean, dry, and free of all loose material. Wire brushing or sweeping is generally sufficient. Watco Bio-D degreaser can be used to remove grease and oil. If the surface is damp, it can be primed with Watco Tack Coat.
Priming
The resin content of Watco Concrex Cold Set is very high. This means that a primer is not usually required when filling holes in concrete floors or resurfacing rough or damaged concrete.
Watco Tack Coat adhesive primer is recommended when using Concrex Cold Set as a thin section screed over smooth surfaces. It is also recommended when repairing intricate/high impact areas such as broken floor joint edges, and damaged step nosings. Watco Tack Coat can also be used at the same low temperatures as Concrex Cold Set.
Watco Concrex Cold Set should ideally be applied to a dry surface, but if the surface is damp Watco Tack Coat should be used as a primer.
Mixing
Wear protective gloves.
The resin and the sand are already pre-blended. There are 4 bottles of grey curing agent supplied with a 10kg unit of Concrex Cold Set, and larger bottles of grey curing agent in the 25KG packs.
The curing agent is added to the sand/resin at point of use, and once mixed the mortar should be used within 30-60 minutes depending upon temperature.
Do not mix inside the plastic bucket. Tip the sand/resin into a mixing tray or on a board.
Shake the bottles of curing agent until the liquid is a uniform grey. The tins of coloured curing agent should be stirred thoroughly.
Form the sand/resin into a mound and leave a small hole in the middle. Empty the curing agent into the hole, ensuring the tin is completely drained.
Carefully mix the aggregate with the curing agent using a trowel until a smooth mortar is obtained, this will take several minutes. The more thorough the mixing, the ‘wetter’, smoother and more manageable the mix becomes. Alternatively, you can knead the mixture by hand wearing suitable gloves. It is important to mix thoroughly until you achieve a consistent colour. A ‘Cretangle’ or suitable open pan mixer can be used to mix large quantities.
Application
Trowel the mortar firmly into the repair and finish with a trowel or float. To get a good smooth finish, regularly wipe the surface of the trowel with a cloth dampened with white spirit.
Watco Concrex Cold Set/Colours Cold Set are normally applied at 5-50mm thick, but repairs can be feather-edged if most of the repair is at least 5mm thick. For repairs deeper than 50mm, apply in separate layers allowing 6-8 hours between layers, or use Watco Concrex Deep Fill Cold Set which can be applied at 15-100mm thick in one layer.
Limitations
Do not apply to wet surfaces.
Watco Tack Coat should be used for application to damp surfaces before applying Watco Concrex Cold Set.
Please refer to Watco Tack Coat data sheet for further information.
These products should not be subjected to temperatures above 60°C.
Data sheet
- Manufacturer
- Watco
- For Use By
- Consumer Use
- Interior / Exterior Use
- Interior & Exterior
- For Use On
- Concrete
- For Use On
- Metallic Substrates
- Application Method
- Steel float or trowel
- Single, Two or Three Pack
- Two-Pack
- Pack Size
- 10KG
25KG - Coverage
- 10kg: 1.2m2 at 5mm thick
25kg: 3m2 at 5mm thick - Compatible Primers
- Not usually – see section headed ‘Priming’.
- Tensile Strength
- Cold set: 15.4 MN/m2
Concrete: 3.4 MN/m2 - UN Number
- UN2735
- Layer Thickness
- Up to 50mm for hole filling only.
Do not use at more than 15mm for screeding. - Resistance to chemicals
- Citric Acid
- Resistance to chemicals
- Caustic Soda
- Resistance to chemicals
- Alcohol
- Resistance to chemicals
- Paraffin
- Resistance to chemicals
- Petrol
- Resistance to chemicals
- Oil
- Resistance to chemicals
- Oxalic Acid
- Resistance to chemicals
- Hydrochloric acid
- Resistance to chemicals
- Nitric Acid
- Resistance to chemicals
- Sulphuric Acid
- Resistance to chemicals
- Sugar Solution
- Resistance to chemicals
- Brine
- Pot Life
- 30-60 minutes depending upon temperature.
- Compressive Strength
- Cold set: 55.2 MN/m2
Concrete: 21.41 MN/m2 - Base Type
- Solvent-Based
- Suitable For Use On
- Concrete Floors
- Suitable For Use On
- Sand and Cement
- Suitable For Use On
- Metal
- Suitable For Use On
- Concrete
- Application Method
- Trowel
- Product Usage Type
- Repair
- Product Range
- Concrex
- Dry for Light Traffic
- At 10°C : 6 hours
At 0°C: 24 hours - Dry for Heavy Traffic
- At 10°C: 8 hours
At 0°C: 48 hours - Colour Family
- Grey
- Categorised As
- Repairs > Low Temperature Repair Mortars
- Seasonal
- Cold Weather
Questions
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IMPORTANT SHIPPING & DELIVERY INFORMATION
Watco Concrex Cold Set - Epoxy Repair Mortar is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.
Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.
Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.
All delivery costs below are excluding VAT
Watco Bio-D Floor Cleaner
A heavy-duty biodegradable cleaner for floor preparation, removes grease and oil from painted or bare concrete. Low odour formula Ideal for preparation to painting Removes oil and grease Can be diluted and used as a general floor cleaner on bare concrete Safe for use on most painted surfaces More Information Delivery Info
Watco Tack Coat
High strength 100% solids epoxy resin adhesive primer, with sub-zero option for use at low temperatures. For use with Watco Concrex Makes shallow or intricate repairs easier Overcoat in 30-60 minutes Cures at 0°C Suitable for use on concrete and metal Note: While great care is taken with the colour samples shown, no guarantee can...