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Ronseal Diamond Hard Garage Floor Paint Slate 2.5L

4.2 (27 reviews)
SKU: 240301125824007 EAN: 5010214857616

Compare 4 prices for Ronseal Diamond Hard Garage Floor Paint Slate 2.5L — from £35.95 to £46.79 across 4 UK sellers including Tooled Up, My Tool Shed, Screwfix and more. Save up to £10.84 (23%).

£35.95 3h ago
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Compare Prices from 4 Sellers

Prices updated 19 Apr 2026
2
My Tool Shed
£35.95 +£0.00
3h
3
Screwfix
£35.99 +£0.04
10h
4
Toolstation
£46.79 +£10.84
7h
#2 My Tool Shed
3h ago
£35.95 +£0.00
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#3 Screwfix
10h ago
£35.99 +£0.04
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#4 Toolstation
7h ago
£46.79 +£10.84
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Keep your garage floor protected and looking fantastic with Ronseal Diamond Hard – it leaves a smooth finish that’s tough enough to park a car on, without worrying about scuffs or scratches.\nRonseal Diamond Hard Garage Floor paint can withstand oil, grease and petrol spills, and is suitable for use on stone or concrete floors. It can be applied to bare or previously-painted surfaces, and 2-3 coats is usually enough to get the job done – the slate-coloured paint is touch-dry in four hours, and fully dry in 72 hours.\n\n• Coverage of up to 12m² per litre\n• Touch-dry in just 4 hours\n• Completely dry in 72 hours\n• Normal finishing process of 2-3 coats\n• Suitable for interior stone or concrete floors\n• Resistant to scuffs and scratches\n• Stops oil, grease or petrol spills from staining\n• Can be used on bare or previously-painted floors\n• Not suitable for self-levelling compound or power-floated floors\n• Supplied in a 2.5L tin – total coverage of up to 30m²
Application Method Paint
Brand Ronseal
Colour Grey
Container Size 2.5 L
Drying Time 1
Finish Satin
MPN R101661
Paint & Primer In One No
Room Garage
Suitable For Flooring, Concrete, Stone
Type Floor
No features listed
No items listed

Customer Reviews 27

4.2
27 reviews
5 star
16
4 star
6
3 star
2
2 star
0
1 star
3
Diamond product
5.0
August 26, 2025
P Bowen Verified Purchase

I does what it says on the tin and more. Happy with result and it does seem a very hard surface, time will tell.

Superb garage floor paint
5.0
September 8, 2024
Alchemist174 Verified Purchase

This product produces a reliable hard wearing surface.

Ronseal Garage Floor Paint
5.0
August 13, 2024
Paul H Blackpool Verified Purchase

Have used this before and it leaves a great finish as long as you apply as it says on the tin

Brill
5.0
July 5, 2023
Silky seal Verified Purchase

It does exactly what it says on the tin , I could walk on it in an hour and recoat , 3 coats on a eight square metre floor and only used half a tin

Ronseal Diamond Hard Garage Floor Paint
5.0
April 24, 2023
SpannerMonkey99 Verified Purchase

Easy to apply and has dried as hard as the tin claims. Slate is a fairly light grey colour which is good in a garage that doesn't have the brightest lighting.

1.0
January 13, 2023
Big Baldy Bri Verified Purchase
5.0
October 17, 2022
9wg9jns2dr01zy1x0invc979b Verified Purchase
Definitely don't use this if your garage has a screed.
1.0
October 16, 2022
BloodDL Verified Purchase

Much less coverage than predicted in the advert and can. Chips very easily, I knocked a screwdriver of the end of my workbench and although it hit the floor handle first, it still chipped a flake of paint off.

Exactly as per usual
5.0
October 15, 2022
Nash Point Verified Purchase

Good product, good price and excellent service

reasonably priced, easy to use,
4.0
September 25, 2022
Redrocket Verified Purchase

The last time I used this paint the car tyres tore up sections where it had been sitting so as the car has been away for Audi to repair their cockup hopefully the paint will of hardened sufficiently this time. As for the use, I sealed the floor (again) and gave it many coats (no point in keeping a little bit left in the tin) and washed the brushes out in water, we will see!

5.0
May 5, 2022
hezrg8tbv2x211og92iju1mxo Verified Purchase
Doesn’t really do what it says on the tin!
3.0
April 4, 2022
Markyboyfred Verified Purchase

I bought this paint and used it without reading the reviews first. I wish I had! The name on the tin was the the reason for purchase. It appears to go on the concrete okay but it will not take to any other type of surface. It flakes off, so if there’s any old paint or non concrete areas it will not take. If the surface has been sealed, I don’t think this will adhere to the surface as it appears to need to be absorbed into the surface of the concrete.Diamond hard is a bit of an over an over statement: I have found that it chips off will any type hard contact. It’s expensive and doesn’t really do what it says on the tin!

Quality paint for garage floor
5.0
June 24, 2021
Andy Pike Verified Purchase

Easy to apply with good finish

Garage floor paint
4.0
April 21, 2021
ahyu6j7r5z111vdv756i7wg3m Verified Purchase

Easy to apply with brush or roller. Thinner than prevoius versions of Ronseal garage floor paint, so will need three coats rather than two.

Great hard-wearing product
5.0
March 25, 2021
Mike the T Verified Purchase

Great product, I cant fault it. Easy to apply and gives a nice effect. I wash down the floor regularly and the paint provides a solid barrier.

A Big green plumber
5.0
March 3, 2021
A BIG 2build3plumber Verified Purchase

Very thick and concentrated easily spreadeable,i even used it to fill up 2mm gaps.

Water based so easy to clean brushes
5.0
June 19, 2020
mickmouse Verified Purchase

I have always used this product on my garage floor.
It dries to a nice finish and is hard wearing.

chipped up pretty much immediately after two coats
1.0
May 30, 2020
zzzzzzzzzz Verified Purchase

terrible paint - DO NOT BUY

1 found this helpful
Its Alright
4.0
May 23, 2020
dhoneybear Verified Purchase

Bought Ronseal Garage Floor Paint,becauseit was a good brand. Unfortunately I was a little disappointed with thickness when brushed on floor.Four coats later ,it looks alright but I am not all that impressed. Diamond Hard it is not.

Love the colour!
5.0
May 17, 2020
Sammij2012 Verified Purchase

Painted garage floor was really easy to apply. Very quick drying was applying second cost in an hour. Love the colour. One tin did two coats.

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