Bostik Cempolay Deep Floor Levelling Compound Grey 20kg
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Wed 17 Jun
- 1days
- 20hrs
- 51mins
- 49secs
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Delivery & Returns Information
Delivery charges vary by product category and order value. Items may ship from different suppliers and arrive separately, so delivery charges can be shown per part of your order at checkout.
Standard (Nationwide) Delivery
|
Core Products Core
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|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 ex. VAT | £30 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 £300 | £25 ex. VAT |
| Over £300 ex. VAT | FREE |
Express Delivery
| Express Delivery - Insulation and Plasterboard & Drylining | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £400 | £90 ex. VAT |
| Over £400 ex. VAT | £55 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 |
How delivery works
We work with a nationwide network of trusted suppliers. Items in your basket may be supplied by different suppliers and delivered separately. Where this applies, you will see delivery charges shown at checkout for each part of your order. We always aim to group products from the same supplier to keep delivery costs as low as possible.
Delivery areas
Delivery charges apply to mainland UK, excluding: AB, CA, CF, DD, DG, EH, EX, FK, KA, KW, KY, IV, LA, LD, LL, ML, NP, PA, PH, PL, SA, SY, TR, TQ and TD.
If your address is in one of these areas, we will contact you before processing your order to confirm any additional costs. We do not currently offer delivery outside the UK mainland.
What to expect on delivery day
- Deliveries are typically kerbside.
- Please ensure someone is on-site to accept delivery. For heavier items, help with offloading may be required.
- Many building materials arrive on large vehicles. If access is restricted, a specialist vehicle such as a HIAB may be required and could incur an additional charge.
Why delivery can cost more than typical parcel delivery
Building materials often travel on larger vehicles and usually carry fewer drops per run than parcel networks. That is why delivery charges can be higher than standard e-commerce shipping.
Returns
Returns depend on what you have bought and whether there is anything wrong with it. For full details on eligibility, timeframes, and exclusions, please see our full policy.
Key Features
- {{format_color_fill}} Deep fills 5-50mm in a single pour
- {{fitness_center}} Creates a high-strength, durable base
- {{check_circle}} Protein-free formulation
- {{layers}} Smooth finish, ready for flooring
Technical Specification
| URN: | 6003081 |
|---|---|
| Brand: | Bostik |
| Weight: | 20kg |
| Sales Unit: | Bag |
| Sales Unit Coverage: | 20kg |
| Bag Size: | 20kg |
| Bag Type: | Paper |
| Colour: | Grey |
| Status: | Non-Returnable |
Product Overview
Bostik Cempolay Deep Floor Levelling Compound in a 20kg bag. This high-strength, protein-free, cement-based levelling compound is designed for deep internal applications. It levels and smooths uneven subfloors, capable of building up from 5mm to 50mm in a single pour.
The formulation combines selected cements and organic binders to produce a robust, free-flowing mortar that transforms irregular subfloors into a flat, load-bearing surface ready for a wide range of floor coverings.
Once mixed with water, the compound develops a smooth, easily workable consistency with excellent flow and rapid hardening characteristics.
Its protein-free composition reduces the risk of bacterial growth, making it suitable for hygiene-sensitive areas in healthcare or food preparation environments.
Features & Benefits
- Wide application thickness: Levels from 5mm to 50mm in a single application, ideal for significant height corrections and deep filling.
- High strength and durability: Creates a dense, load-bearing surface suitable for light to heavy-duty interior traffic prior to floor covering installation.
- Protein-free formulation: Prevents biological contamination, ensuring suitability in hospitals, kitchens, and other hygiene-critical areas.
- Excellent workability: Free-flowing mortar with a 15-20 minute working time for easy application and self-levelling performance.
- Rapid setting: Accepts light foot traffic after approximately 90 minutes, expediting project turnaround.
- Versatile substrate compatibility: Bonds to concrete, sand/cement screeds, stone, and properly prepared unglazed tiles.
- Underfloor heating compatibility: Suitable for use over warm-water underfloor heating systems when installed to correct specification.
- Smooth finish: Provides a high-quality, even surface for vinyl, carpet, tile, and other bonded coverings.
- Bag size - 20 kg: Supplied in 20kg units to achieve consistent water-to-powder ratio and reliable site handling.
Applications
- Levelling uneven subfloors: Corrects irregularities and undulations in concrete or screeded floors.
- Raising floor levels: Builds up internal floors to significant heights in one operation.
- Filling depressions and trenches: Ideal for filling low spots, voids, or service channels.
- Creating sloping screeds: Forms controlled gradients for drainage or transitions between floor levels.
- Smoothing over existing hard surfaces: Suitable for use over well-bonded, sound subfloors such as concrete, sand/cement screeds, stone, or unglazed ceramic and quarry tiles.
- Not suitable for: Use over wooden floors, adhesive residues, mastic asphalt, or areas subject to permanent water immersion.
Installation Guidance
- Substrate preparation: Surfaces must be clean, dry, structurally sound, and free of grease, dust, laitance, or contaminants. Mechanical preparation such as grinding or shot blasting may be required.
- Repair and inspection: Fill cracks and voids with a suitable repair mortar such as Bostik Rapid Repair Mortar and allow to dry before application.
- Environmental conditions: Maintain substrate, air, and material temperature between +5°C and +27°C; avoid draughts during curing.
- Mixing ratio: Add exactly 3.5 litres of clean, cold water per 20 kg bag. Gradually add powder to water while mixing with a heavy-duty drill (minimum 650 rpm) fitted with a mixing paddle. Mix for at least two minutes, allow to stand for one minute, then briefly re-mix.
- Application process: Pour immediately after mixing, spreading evenly with a steel trowel or gauge rake to the desired thickness. Use a spiked roller within 10–15 minutes to de-aerate and achieve a uniform finish.
- Working time: Approximately 15–20 minutes at +20°C. Do not add water to re-temper the mix once it begins to stiffen.
- Drying and curing: Protect the surface until set. Allow full drying before applying coverings — typically 24 hours per 5 mm thickness at +20°C.
Compliance & Performance
- Material composition: Cement and polymer binder blend with fine aggregates; free from protein and casein.
- Application depth: Suitable for single-pour thicknesses between 5 mm and 50 mm.
- Compressive strength: High early and final strength for domestic, commercial, and light-industrial interiors.
- Working time and trafficability: Approximately 15–20 minutes working time; accepts light foot traffic after 90 minutes at +20°C.
- Drying time before coverings: 4 hours for loose-laid coverings; approximately 24 hours per 5 mm thickness for bonded finishes such as vinyl or wood.
- Surface moisture: Ensure substrate <75%RH before installation of impervious finishes.
- Compatibility: Suitable for use over concrete, screed, stone, and other rigid mineral subfloors; not for exterior or submerged applications.
- Standards compliance: Subfloor preparation and installation in accordance with BS 8204 (Code of Practice for Concrete Subfloors).
- Important note: Always follow the manufacturer’s data sheet and safety guidance. Use appropriate PPE during mixing and application, and ensure adequate ventilation throughout the curing process.
