Tremco EUCO QWIKstitch Concrete Repair Mortar

Tremco EUCO QWIKstitch is an ultra-low viscosity, two-component hybrid urethane repair liquid designed for rapid concrete crack and spall repairs. When combined with blended aggregate, EUCO QWIKstitch becomes a tough repair mortar suitable for durable repairs in concrete pavements, hardstands, and industrial surfaces.

EUCO QWIKstitch provides a fast-curing repair solution where minimising downtime is important. Its rapid cure properties allow repaired areas to be opened to heavy traffic in less than one hour when installed under suitable conditions.

The low viscosity repair liquid can be applied neat or combined with aggregate to create a repair mortar for different concrete repair requirements. EUCO QWIKstitch can be used across a wide application temperature range from -18°C to 43°C and does not require priming before application.

Key Benefits of EUCO QWIKstitch

• Ultra-low viscosity polyurethane hybrid repair system
• Very fast curing repair solution
• Can reopen areas to traffic in as little as 30 minutes
• No priming required
• Low VOC formulation with no solvent odour
• Suitable for concrete and asphalt repairs
• Can be applied neat or with blended aggregate
• Wide application temperature range

Where Can EUCO QWIKstitch Be Used?

EUCO QWIKstitch is designed for rapid repair applications including:

• Cracked concrete surfaces
• Interior and exterior concrete repairs
• Spalled or damaged floor joints
• Industrial floor repairs
• Walkway repairs
• Parking structure repairs
• Concrete bridge repairs
• Airport runway and taxiway repairs
• Cold room floor and entrance repairs

Packaging 

3 Component Unit containing:

• Resin (Part A): 2.31lts
• Hardener (Part B): 2.31lts
• Aggregate (Part C): 20kg

Colour

• Part A: Clear/Amber
• Part B: Black
  
• Mixed: Grey

Coverage/Yield: Approximately 12.31lts per unit

Surface Preparation

Crack Repairs

• Concrete must be a minimum of 21 days old.
• Clean cracks using a diamond blade, wire brush, or wire wheel.
• Remove loose concrete, dirt, oil, dust, laitance, and contaminants.
• Clean prepared cracks using oil-free compressed air or industrial vacuum.
• Ensure surfaces are clean and dry before application.

Spall Repairs

• Remove loose, delaminated, and weak concrete.
• Remove oil, grease, laitance, and contaminants.
• Mark repair areas clearly.
• Saw-cut concrete around repair areas to minimum 10mm depth.
• Cuts should be perpendicular to the surface to avoid feather edging.
• Prepare surfaces to achieve clean, sound, rough concrete.
• Ensure all surfaces are clean and dry before application.

Mixing Instructions

1. Shake Part A and Part B containers before use.
2. Pour Part A into a clean mixing bucket.
3. Add Part B and mix using a drill and paddle mixer for approximately 20 seconds.
4. Slowly add Aggregate Part C.
5. Continue mixing until aggregate is fully wetted (approximately 30 seconds).
6. Mix only the amount that can be used within the working time.

Application Instructions

• Place mixed material immediately after mixing.
• Working time is approximately 2–3 minutes at 24°C.
• Material may be used neat or combined with aggregate depending on repair requirements.
• Repair mortar should be installed between 10mm and 76mm per lift.
• After the repair becomes tack-free (approximately 10 minutes), finish flush with the substrate using a diamond grinding disc.

Application Conditions

• Condition EUCO QWIKstitch material between 16°C and 27°C before use.
• Application temperature range: -18°C to 43°C.
• Warmer material or hot concrete will accelerate curing.
• Cold material or cold conditions will delay curing.
• Conduct a small test application where jobsite conditions may affect curing.

Important Product Notes

• Wet substrate or wet aggregate can cause foaming and reduce repair performance.
• Neat material may discolour when exposed to UV light.
• Repair mortar thickness should be between 10mm and 76mm per lift.
• Always refer to the Safety Data Sheet before use.

Note: Always refer to the latest EUCO QWIKstitch Product Datasheet and Safety Data Sheet for complete technical information, application requirements, limitations, and safety instructions before use.

Colour Accuracy Disclaimer: We have taken care to display the most accurate visuals of our products. However, we are not responsible for the colour accuracy of the device you are viewing our swatches on. These variations arise due to different computer monitors and devices (make, model and technology, as well as resolution, contrast and brightness control settings) in much the same way a scan will differ from an original image and a colour photocopy. Furthermore, coatings can exhibit variation in perceived colour depending on gloss level and application method. If you require a very specific colour match, please make your selection via actual swatches and colour boards available at our showroom.

Product Disclaimer: Ensure you read all product, technical and safety data sheets prior to application as liability falls on the applicator. All products must be applied in accordance with manufacturer’s recommended method.