Collection: How to Make A Worktop

Our business started after we decided to attempt to make our own concrete worktop.  If, like us you have a reasonable level of building skills and experience and access to decent tools it should be possible for you to make your own concrete worktop, furniture, decorative item or floor.

We recommend making a trial piece first so you can get used to the concrete mixing and curing process before committing time and materials to a larger project.

Most people want to make a worktop, counter top or table top, and the majority of products we sell are geared towards that purpose.  We offer our Premix kits, where we've taken the guesswork out of the mixing process, or if you'd prefer to buy your own sand and cement or you're an experienced concrete addict then you can buy our range of additives and create your own mix. 

Making a concrete item is a relatively quick and satisfying process with a few basic stages - building a mould, mixing and casting, demoulding the item, preparing the concrete for finishing, and then polishing and sealing. From having your mould ready, you can have the finished product ready to eat dinner off after around 4 days.

We can't stress enough how important your mould is. We make ours with melamine and use our high-quality mould release oil. The accuracy of your mould is critical in determining the success of your project, particularly in projects like kitchen worktops where the dimensions are critical.

Choosing the right products for your concrete is also key.  If you're using your own sand and cement then ensure that your cement is totally dry at the outset.

We are fans of GRFC - Glass Fibre Reinforced Concrete. It's stronger than standard concrete so you can cast thinner worktops and importantly it weighs as much as 75% less.  Our Premix kits contain glass fibres and we also sell glass fibres separately. 

If you are intending to have cut outs in your project - for example for a sink or hob, we recommend adding additional strengthening in the form of fibreglass reinforcement bars around the cut-out. 

Making a concrete worktop, countertop or table usually follows this process:

Day 1 -  Build your mould. Depending on the complexity of your project this may take a day or more. Accuracy is key here because any blemishes in your mould will be mirrored in the concrete.

TIP - Don't start casting late in the day, building any lips in the project always takes longer than you think, plus never let the face coat go off too much before applying a back coat - you don't want it to dry out too much.

Day 2 - Apply mould release oil, mix your concrete and cast into your mould.

TIP - always cover your concrete once cast with sheet plastic and spray with water. Think air tight container!

Day 3 - Remove from the mould - we recommend doing this after 12-18 hours.

TIP - don't leave the concrete in over the weekend, fi you're not around to wet it down it may warp and it will be too hard to polish.

Day 4 - Prepare the concrete for finishing using Etch n Clean, polish using an orbital sander and then apply the first coat of sealer.

TIP - We use 180 grit pad to get rid of any watermarks from processing.

Day 5 - Apply second and third coats of sealer

Day 6 - apply the final coat of sealer.

Day 7 - Relax. Take a load off. Don't TOUCH!

Day 8 - install your new polished concrete product, nourish and buff with our concrete wax

Enjoy your new concrete worktop or piece of furniture.

Download our PDF - Basic casting instructions

Take a look at our FAQ's page for tools and materials we recommend you have access to before you start, plus hints and tips.

Check out our videos: 

4 products
  • Concrete Worktop Premix Kit - GFRC All in One kit
    GFRC Concrete Worktop Premix Kit
    Regular price
    £50.00
    Sale price
    £50.00
  • Water-Based Mould Release Agent 1 litre
    Water-Based Mould Release Agent 1 litre
    Regular price
    £12.50
    Sale price
    £12.50
  • Fibreglass Reinforcement Bars for Worktops
    Fibreglass Reinforcement Bars for Worktops
    Regular price
    £3.65
    Sale price
    £3.65
  • Glass Fibres for Concrete
    AR Glass Fibres 1Kg
    Regular price
    £6.25
    Sale price
    £6.25