Bostik Cempolatex Latex Sub-Floor Levelling Compound 20kg
| 10+ bags | 15+ bags | 20+ bags |
| £21.05ex. VAT | £20.83ex. VAT | £20.62ex. VAT |
Flexible, rapid-setting, latex-modified sub-floor compound. Ideal for various flooring types. Suitable for interior use and foot traffic in 2-4 hours.
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Thu 13 Nov
- 2days
- 19hrs
- 1mins
- 38secs
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Product Overview
Flexible, rapid-setting, latex-modified sub-floor compound. Ideal for various flooring types. Suitable for interior use and foot traffic in 2-4 hours.
Delivery & Returns Information
How Our Delivery Works
We work with a nationwide network of trusted suppliers. As a result, items in your basket may be supplied by different suppliers and delivered separately. Where this applies, you'll see multiple delivery charges at checkout. We always aim to group products from the same supplier to keep delivery costs as low as possible.
Delivery Areas & Charges
Delivery charges listed on our website apply to mainland UK, excluding the following postcode areas: AB, CF, DD, DG, EH, FK, KA, KW, KY, IV, LA, LD, LL, ML, NP, PA, PH, SA, SY & TD
If your delivery address falls within one of these postcode areas, we’ll be in touch before processing your order to confirm any additional delivery costs.
Please note: We do not currently offer delivery outside the UK mainland.
Standard (Nationwide) Delivery
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Core Products Core
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|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 ex. VAT | £20 ex. VAT |
| Over £300 ex. VAT | FREE |
Core Delivery charges apply only when all products in an order that have equivalents are accepted as such. If even one product cannot be substituted with an equivalent, the entire order will not qualify for Core Delivery charges.
| Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £100 | £20 ex. VAT |
| Between £100 - £300 ex. VAT | £10 ex. VAT |
| Over £300 ex. VAT | FREE |
| Insulation, Plasterboard and Drylining Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £350 | £35 ex. VAT |
| Over £350 ex. VAT | FREE |
| Screws & Fixings and Adhesives & Sealants | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £50 | £5 ex. VAT |
| Over £50 ex. VAT | FREE |
Express Delivery
| Express Delivery - Insulation and Plasterboard & Drylining | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £400 | £50 ex. VAT |
| Over £400 ex. VAT | £35 ex. VAT |
| Express Delivery - Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 | £50 ex. VAT |
| Over £300 ex. VAT | £35 ex. VAT |
Returns
We offer a 30 day returns policy on any faulty products.
Key Features
- {{upgrade}} Designed to level out irregularities in sub-floors
- {{update}} Allows for light foot traffic in approximately 4 hours
- {{home}} For interior applications only
- {{straighten}} Creates a sound surface, ready to receive floor coverings
Technical Specification
| Bag Type: | Paper |
|---|---|
| Bag Size: | 20kg |
| Sales Unit: | Bag |
| Sales Unit Coverage: | 20kg |
| Brand: | Bostik |
| Weight: | 20kg |
| Colour: | Grey |
| Status: | Non-Returnable |
Product Overview
Bostik Cempolatex Self-Smoothing Compound supplied as a grey, cement-based powder for mixing with water to form a free-flowing, self-levelling liquid.
Designed for interior use, it provides a rapid-setting, durable base for floor coverings on a wide range of prepared sub-floors. The latex-modified formulation gives enhanced flexibility and adhesion, forming a sound, smooth surface ready to receive resilient, textile, wood, or ceramic finishes.
It is not intended as a final wearing surface and must always be covered with a suitable floor finish. The product is typically applied between 3mm and 12mm in a single application.
Features & Benefits
- Enhanced Flexibility: Latex modification allows for minor substrate movement, ideal for suspended timber and mixed sub-floors.
- Rapid Setting and Drying: Accepts light foot traffic after approximately 4 hours and most floor coverings within 16-24 hours at 20°C and 3mm thickness, supporting fast-track installation.
- Excellent Adhesion: Bonds strongly to a wide range of properly prepared substrates, including concrete, screeds, stone, brick, terrazzo, and rigid plywood.
- Self-Smoothing Performance: High-flow formulation enables easy application and a level, uniform finish with minimal trowelling.
- Protein-Free Composition: Eliminates the risk of adverse reactions with sensitive adhesives and maintains suitability in hygienic environments.
- Underfloor Heating Compatible: Suitable for use over piped warm water underfloor heating systems when used as a levelling layer.
- Versatile Application Thickness: Can be applied between 3mm and 12mm in a single pour, with deeper isolated repairs achievable up to 100mm when used in conjunction with Bostik SBR.
Applications
- Interior Floor Levelling: Smooths and levels uneven sub-floors prior to installation of new floor coverings.
- Resilient Flooring Preparation: Provides a stable, smooth surface for vinyl, LVT, and rubber flooring.
- Tile and Stone Finishes: Creates a reliable, even substrate for ceramic or natural stone tiles.
- Timber and Textile Coverings: Suitable for use beneath carpet, wood, and laminate floors where a level base is required.
- Underfloor Heating Systems: Appropriate for application over embedded warm water heating systems under controlled installation conditions.
Installation Guidance
- Substrate Preparation: Surfaces must be clean, dry, sound, and free from contaminants such as dust, grease, or existing adhesive residues.
- Priming: Always apply a Bostik-recommended primer appropriate to the substrate to minimise absorption, prevent pinholes, and optimise adhesion.
- Mixing: Add powder gradually to the specified quantity of clean, cold water and mix mechanically for a minimum of 2 minutes until smooth and lump-free. Do not over-water.
- Application: Pour immediately onto the primed surface and spread with a steel trowel or float to the desired thickness. Maintain a wet edge to blend pours seamlessly.
- Finishing: Use a spiked roller to remove air and improve surface uniformity.
- Underfloor Heating Procedure: Heating must be switched off 48 hours before application, remain off during curing, and be reintroduced gradually after 48 hours.
Compliance & Performance
- Material Composition: Cement-based powder incorporating latex modification for flexibility and strength.
- Performance Properties: Rapid-setting formulation supporting foot traffic within 4 hours and floor coverings after 16–24 hours (3mm thickness at 20°C).
- Substrate Compatibility: Adheres to concrete, sand/cement screeds, calcium sulphate screeds, mastic asphalt (subject to priming), rigid plywood, and firmly bonded ceramic or quarry tiles.
- Application Limitation: Interior use only; not suitable as a final wear surface or for use over water-soluble contaminants or adhesive residues.
- Underfloor Heating Use: Suitable only for warm water systems when used as a levelling compound; not for filling or topping applications with UFH or mastic asphalt bases.
- Important Note: Ensure all substrates are properly prepared and primed. Do not apply over flexible or poorly ventilated timber structures. The product must always be covered with a suitable floor finish.
