---
product_id: 56700623
title: "Bostik Cempolay Self-Levelling Compound for Interior Floors, Colour: Grey, 25kg"
brand: "bostik"
price: "$861.51"
currency: USD
in_stock: true
reviews_count: 9
category: "Bostik"
url: https://www.desertcart.us/products/56700623-bostik-cempolay-self-levelling-compound-for-interior-floors-colour-grey
store_origin: US
region: United States of America
---

# self-levelling precision sets hard overnight 25kg heavy-duty bag Bostik Cempolay Self-Levelling Compound for Interior Floors, Colour: Grey, 25kg

**Brand:** bostik
**Price:** $861.51
**Availability:** ✅ In Stock

## Summary

> ⚡ Level up your floors overnight—smooth, sleek, and ready to impress!

## Quick Answers

- **What is this?** Bostik Cempolay Self-Levelling Compound for Interior Floors, Colour: Grey, 25kg by bostik
- **How much does it cost?** $861.51 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/56700623-bostik-cempolay-self-levelling-compound-for-interior-floors-colour-grey)

## Best For

- bostik enthusiasts

## Why This Product

- Trusted bostik brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rapid Set Time:** Hard as nails by next morning—fast turnaround for your projects.
- • **Feather-Edge Finish:** Trowels to an ultra-thin feather edge for seamless floor transitions.
- • **Effortless Precision:** Self-smoothing formula levels floors flawlessly with minimal effort.
- • **Mix & Pour Simplicity:** Easy mixing with drill paddle and smooth pouring for professional results at home.
- • **Interior-Grade Reliability:** Specifically designed for interior subfloors, ensuring durable, smooth surfaces.

## Overview

Bostik Cempolay is a 25kg grey self-levelling compound designed for interior floors. Its protein-free, PMB cement formula spreads easily, trowels to a feather edge, and sets hard overnight, delivering a smooth, level subfloor ready for finishing. Ideal for DIY pros seeking fast, reliable results with minimal fuss.

## Description

Bostik Cempolay Self-Levelling Compound for Interior Floors, Colour: Grey, 25kg : desertcart.co.uk: DIY & Tools

Review: Did the intended job. - Bag arrived torn and shedding contents as it was not wrapped or boxed. I contacted desertcart and got a partial refund. I weighed what was left in the bag and found I had enough for the intended job. Downstairs toilet floor. I adjusted the amount of water but I think I still may have used too much. It mixed up easily with a drill and paddle in a builder's trug. Poured out and spread easily. I used a spiked roller. Looked good but stayed wet all day. Next morning it was set and looked a bit scuffed but was actually perfectly smooth and level. Gave it a couple of days then covered with cork tiles. Splashs on the wall could not be removed once dried but easily painted over. As a woman of mature years, if I can do it anyone can. I think the spiked roller really did make the difference in making it spread evenly. I also used spiked shoe guards.
Review: VERY Easy to use - Firstly, delivery is terrible, literally stuck a delivery label on the bag, Would it kill them to wrap it in shrink wrap ? Usage:- very very easy, for reference: 5 ltrs of water needed per 25kg bag Poor the water in a clean bucket, use an paddle in a drill for best results, add the dust slowly whilst mixing until its all mixed in, then poor. voila, self levelling floor. I poured 2 bags at 8 pm and was hard as nails next morning, also went allot deeper than suggested it can do (20mm+ in places) and its gone off well Very good product and will use again

## Features

- Causes serious eye damage.
- Causes skin irritation.
- May cause an allergic skin reaction.
- Protein-free, self -smoothing compound
- Smooths and levels internal subfloors
- Trowels to a feather edge
- Interior use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01DIRB1SG |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 375,570 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,009 in Flooring Accessories |
| Colour | Grey |
| Customer Reviews | 4.5 4.5 out of 5 stars (73) |
| Date First Available | 28 Mar. 2016 |
| Included Components | 1x Bostik Cempolay Self-Levelling Compound For Interior Floors, Colour: Grey, 25kg |
| Item Package Quantity | 1 |
| Item Weight | 25 kg |
| Item model number | 30812514 |
| Manufacturer | Bostik |
| Material | PMB Cement |
| Measurement System | Metric |
| Number of Pieces | 1 |
| Part Number | 30812514 |
| Power Source | AC |
| Product Dimensions | 46 x 39 x 12 cm; 25 kg |

## Images

![Bostik Cempolay Self-Levelling Compound for Interior Floors, Colour: Grey, 25kg - Image 1](https://m.media-amazon.com/images/I/41gyOp1unDL.jpg)

## Questions & Answers

**Q: can this be used with underfloor heating?**
A: Should be no problems using this product for underfloor heating. You need to ensure all pipes/mats are properly covered

**Q: suitable for underfloor heating?**
A: We put it over central heating pipes that were channeled into the floor, it's been ok.

**Q: Is this flexible type**
A: No

**Q: Can i use for skim coat over a plywood for create a concrete style dining table?**
A: I don't think it would feather as well as proper skim.  It would tend to leave an edge such as water on a glass table if you get my drift ? If you're not too bothered by that then I cant see a problem

## Customer Reviews

### ⭐⭐⭐⭐⭐ Did the intended job.
*by E***O on 22 January 2022*

Bag arrived torn and shedding contents as it was not wrapped or boxed. I contacted Amazon and got a partial refund. I weighed what was left in the bag and found I had enough for the intended job. Downstairs toilet floor. I adjusted the amount of water but I think I still may have used too much. It mixed up easily with a drill and paddle in a builder's trug. Poured out and spread easily. I used a spiked roller. Looked good but stayed wet all day. Next morning it was set and looked a bit scuffed but was actually perfectly smooth and level. Gave it a couple of days then covered with cork tiles. Splashs on the wall could not be removed once dried but easily painted over. As a woman of mature years, if I can do it anyone can. I think the spiked roller really did make the difference in making it spread evenly. I also used spiked shoe guards.

### ⭐⭐⭐⭐⭐ VERY Easy to use
*by S***H on 17 June 2019*

Firstly, delivery is terrible, literally stuck a delivery label on the bag, Would it kill them to wrap it in shrink wrap ? Usage:- very very easy, for reference: 5 ltrs of water needed per 25kg bag Poor the water in a clean bucket, use an paddle in a drill for best results, add the dust slowly whilst mixing until its all mixed in, then poor. voila, self levelling floor. I poured 2 bags at 8 pm and was hard as nails next morning, also went allot deeper than suggested it can do (20mm+ in places) and its gone off well Very good product and will use again

### ⭐⭐⭐⭐ Good enough!
*by R***W on 5 June 2019*

being absolutely honest the product is good, but the delivery not, just the bag in front of my door without any packaging at all or protection, the bag was terribly heavy and already damaged! the product in itself is ok, s dust, but ok.

## Frequently Bought Together

- Bostik Cempolay Self-Levelling Compound for Interior Floors, Colour: Grey, 25kg
- Faithfull FAIMP80 Mixing Paddle 80MM

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-08*