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**Important Note:** This product is only available for delivery within QLD or for pickup in-store. Please contact us directly if you wish to have this product delivered outside of Brisbane. Standard shipping charges will apply.
Use Mapei UC Leveller for: Levelling and smoothing interior floors prior to installing carpet, tiles, stone, or timber flooring.
Mapei UC Leveller is a grey powder levelling compound designed for smoothing and levelling interior substrates. Its fast-hardening and self-levelling properties make it ideal for preparing floors before installing various coverings. UC Leveller is classified as CT-C25-F7 according to EN 13813, ensuring high compressive and flexural strength.
Key Features of Mapei UC Leveller:
- Fast Hardening: Reduces waiting time before flooring installation.
- Self-Levelling: Provides a smooth, even surface.
- High Strength: Classified as CT-C25-F7, ensuring durability.
- Versatile Application: Suitable for various substrates and flooring types.
- Pumpable: Easy application with automatic pressure pumps.
Why Choose Mapei UC Leveller:
- Increased Efficiency: Rapid setting and easy application.
- Enhanced Durability: High compressive and flexural strength.
- Versatile Use: Suitable for a wide range of flooring installations.
- Smooth Finish: Ensures a perfect base for floor coverings.
When to Choose Mapei UC Leveller versus Alternatives:
- Choose Mapei UC Leveller when: Fast hardening and high strength are required for interior levelling.
- Consider other options when: Levelling exterior substrates or timber substrates.
- Cost-benefit comparison: Mapei UC Leveller offers superior performance and efficiency, justifying its value.
Trade-Specific Applications for Mapei UC Leveller:
For Flooring Contractors:
- Levelling concrete and cement-based screeds before tile or carpet installation.
- Preparing anhydrite screeds for various floor coverings.
- Smoothing floors for underfloor heating installations.
For Tile Installers:
- Creating a smooth base for ceramic and natural stone tiles.
- Levelling existing tile and stone floors for new installations.
- Ensuring a flat surface for large format tiles.
For Carpet Installers:
- Preparing smooth surfaces for carpet and carpet tiles.
- Levelling floors in high-traffic commercial areas.
- Ensuring a flat base for seamless carpet installation.
For Timber Flooring Installers:
- Preparing concrete substrates for floating timber or laminate flooring.
- Creating a level surface that will help prevent issues with the timber flooring.
- Ensuring a flat and smooth base for the timber flooring.
Technical Overview
Mapei UC Leveller is a grey powder composed of special fast-setting and hydrating cements, graded silica sand, resins, and additives. When mixed with water, it becomes a fluid, self-levelling mix that cures rapidly.
Chemical Properties: Cement-based powder with additives for enhanced flow and strength.
Application Considerations: Interior use only, thickness range of 3-70mm, and temperature range of +5°C to +35°C.
Application Information
- Required Tools: Electric mixer, trowel, float, and pump (for large areas).
- Trade-Specific Tips: Ensure proper substrate preparation, use correct water ratio, and apply within working time.
- Common Issues and Solutions: Avoid over-watering, ensure proper priming, and follow movement joint guidelines.
Storage and Shelf Life
- Storage Requirements: Store in a dry, elevated area, protected from moisture.
- Shelf Life Information: 12 months in original sealed packaging.
- Temperature Considerations: Avoid extreme temperatures during storage.
Certifications and Compliance
- EN 13813 CT-C25-F7 classification.
- Green Star compliant (very low VOC content).
Frequently asked questions
Is Mapei UC Leveller suitable for exterior use?
No, UC Leveller is for interior applications only. It is not designed for exterior or wet areas, nor for substrates subject to rising damp.
How quickly can I install flooring over UC Leveller?
You can install most floor coverings after 24 hours at 23°C and 50% RH. Light foot traffic is possible in 12 hours under these conditions.
What is the maximum application thickness for UC Leveller?
UC Leveller can be applied in a single pass from 3mm up to 70mm. For layers above 40mm, incorporate 30% aggregate to maintain performance.
Is priming always necessary before applying UC Leveller?
Yes, priming is critical for proper adhesion and to prevent issues like pinholes. Use Eco Prim T Plus diluted 1:2 for porous substrates, or undiluted Eco Prim T Plus or Eco Prim Grip Plus for non-porous surfaces.
Applications and benefits
| Application | Key benefit | Primary trades |
|---|---|---|
| Levelling and smoothing interior floors (3mm-70mm) | Delivers a highly flat and strong substrate (C25-F7) for all common floor coverings, preventing callbacks. | Flooring installers, Tilers, Builders |
| Preparing subfloors for under-floor heating systems | Provides a stable, even layer that protects heating elements and ensures efficient heat distribution. | Heating technicians, Flooring installers |
| Fast-track commercial and residential projects | Rapid hardening (light traffic in 12h, tiling in 24h) and pumpable application accelerate project timelines. | Commercial builders, Project managers, Flooring contractors |
| Reinstating damaged or uneven concrete slabs | Fills deep imperfections (up to 70mm) in a single application, creating a durable, load-bearing surface. | Concrete repairers, Building renovators |
How to apply UC Leveller:
- Prepare the substrate by cleaning and priming as required.
- Mix UC Leveller with water to a homogenous consistency.
- Spread the mix with a metal trowel or float, or apply with a pump.
- For a second coat, apply after 3 hours or prime with Eco Prim T Plus if more than 24 hours have passed.
- Allow to dry for 12-24 hours before installing flooring.
Product limitations
- Not for: Exterior use or wet areas. UC Leveller is formulated for interior, dry environments.
- Not for: Substrates subject to rising damp. This can compromise adhesion and performance.
- Not for: Application at temperatures below +5°C or above +35°C. Performance is sensitive to application temperature.
- Not for: Application in thicknesses less than 3mm. Minimum thickness is critical for proper self-levelling and strength development.
- Not for: Use over timber substrates. The product is not compatible with the movement characteristics of timber.
Safety and handling
Personal protective equipment
Wear protective gloves, eye protection, and a dust mask during mixing and application.
Ventilation
Ensure adequate ventilation in the work area during mixing, application, and drying to prevent dust and vapour accumulation.
Storage and disposal
Store in original sealed packaging for up to 12 months in a dry environment. Dispose of waste material according to local regulations.
Substrate guide
Effective substrate preparation is critical for any flooring project. This guide outlines requirements for common surfaces before applying UC Leveller.
Concrete slabs and cement-based screeds
Surface prep: Ensure the surface is clean, dry, sound, and free from all contaminants, laitance, or weak material.
Primer: Required. Use Eco Prim T Plus diluted 1:2 with water for porous surfaces.
Existing ceramic tile, terrazzo, and natural stone floors
Surface prep: Clean, dry, and free from contaminants. Degrease if necessary. Ensure all existing tiles are firmly bonded.
Primer: Required. Use undiluted Eco Prim T Plus or Eco Prim Grip Plus for non-porous surfaces.
Magnesite floors
Surface prep: Clean, dry, and sound. Remove any loose material or contaminants.
Primer: Required. Use Eco Prim T Plus.
Substrates with under-floor heating installations
Surface prep: Ensure the heating system is off and the substrate is stable before application.
Primer: Required. Follow priming guidelines based on the underlying substrate type (e.g., concrete).
Product documents
Mapei UC Leveller Physical Properties
| Property | Value |
|---|---|
| Colour | Grey |
| Density | 2100 kg/m³ |
| Consistency | Fine Powder |
| Solids Content | 100% |
| pH Value | > 12 |
| Compressive Strength | 30 N/mm² |
| Flexural Strength | 8.5 N/mm² |
| Initial Cure | 2-4 hours |
| Trafficable Time | 12 hours |
| Tiling Ready | 24 hours |
| Application Temperature | 5°C to 35°C |
| Mix Ratio | 17-19 parts water to 100 parts powder by weight |
| Coverage Rate | 1.8 kg/m² per mm of thickness |
| Bed Thickness | 3 mm to 70 mm |
| VOC Content | 0 g/L |
| Classification | CT-C25-F7 |
| Packaging | 20 kg bags |
| Storage Life | 12 months in original sealed packaging |
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