Which paint type should I choose (1K, 2K, 2K Air-Dry)?

1K is ready to use and suits lighter-duty jobs and touch-ups. 2K contains a built-in hardener for higher chemical and abrasion resistance on demanding surfaces. 2K Air-Dry provides 2K performance with a non-isocyanate hardener for easier handling. Note: our 2K aerosols are supplied as Acrylic Enamel only.

Do I need a primer, and which one is right?

Preparation is essential: clean, degrease and key the surface. Use the correct primer for the substrate: plastic adhesion primers for plastics, glass or fibreglass primers for those materials, and metal/etch primers for metals. Using the right primer improves adhesion and longevity.

How long does it take to dry, and when can I recoat?

For 1K, apply light passes and recoat after around 10–15 minutes; typical cure is about 30 minutes depending on conditions. For 2K, recoat after around 20–30 minutes, touch-dry is about 40 minutes, and full cure is usually 24–48 hours. Temperature and humidity affect all drying and curing times.

How much will I need (coverage & coats)?

A 400 ml aerosol typically covers up to approximately 2 m² per coat on smooth, primed surfaces. Most jobs need 2–4 coats depending on the colour, surface profile and the shade being covered.

Any tips for a smooth, professional finish?

Shake the can for 2–3 minutes and during use. Spray 15–25 cm from the surface in light, even passes with slight overlap. Keep the can upright and clear the nozzle with a short burst after use. Use adjustable fan patterns to suit the area and reduce overspray.

Can I spray indoors, and what safety should I consider?

Only spray indoors with excellent ventilation and appropriate PPE such as a respirator, gloves and eye protection. Protect surrounding areas from overspray. Refer to product data sheets for detailed safety and handling guidance.

RAL 7023 Concrete Grey Aerosol Spray Paint, Tins & Tester Pots

RAL 7023 Concrete Grey spray paint from £12.99 (excl. VAT) for a 400 ml custom mixed can.

RAL 7023 Concrete Grey Paint Touch up & Repair Pen

RAL 7023 Concrete Grey Paint Colour Swatch

Size * (Prices Excl.VAT)

Paint Type *

Gloss Level *

Quantity *

Optional Additives

UV Protection (+ £0.50)

High Resistance (+ £2.99)

Optional Extras

500ml Grey Primer (+ £8.99)

500ml White Primer (+ £8.99)

500ml Clear Lacquer (+ £8.99)

Gloves (+ £0.99)

Paint Prices & Coverage

Prices for aerosol cans, tins, tester pots and touch up pens
Format	Size	Coverage	Price
Aerosol Cans
1K	400 ml	1.5 m²	£12.99
2K	400 ml	1.5 m²	£19.99
2K Air Dry	400 ml	1.5 m²	£15.99
Tins
1K	1 litre	10 m²	£39.99
1K	2 litres	20 m²	£59.99
2K Air Dry	1 litre	10 m²	£44.99
2K Air Dry	2 litres	20 m²	£69.99
Tester Pots
1K	60 ml	0.5 m²	£7.99
2K Air Dry	60 ml	0.5 m²	£9.99
1K	100 ml	1 m²	£9.99
2K Air Dry	100 ml	1 m²	£11.99
1K	250 ml	2.5 m²	£14.99
2K Air Dry	250 ml	2.5 m²	£16.99
Touch up Pens
1K	20 ml	0.25 m²	£7.99
2K Air Dry	20 ml	0.25 m²	£9.99

Safety Data Sheets for Aerosols

Product Details

Colour: RAL 7023 Concrete Grey

Product type: Custom mixed aerosols, tins & pots.

Brand: One Stop Aerosols

Product Code: 158

Price: £7.99 – £69.99 + VAT

Availability: In Stock

RGB Colour Code: 128-128-118

Hexadecimal Colour Code: #808076

30-day returns policy on all eligible faulty products.

About Our Paints

RAL 7023 Concrete Grey is part of the RAL Classic Paint colour chart. We mix every order from fresh using quality Lechler binders and colourants, so the shade you choose stays consistent across aerosols and tins.

Formats and sizes: 400ml aerosols in 1K (ready to use) or 2K (with built in hardener), litre tins, plus repair pots and pens for touch ups.
Finish options: Matt 0%, Satin 30%, Semi 60%, or Full Gloss 90% - pick the sheen that suits your project.
Optional extras: Add UV protection for outdoor use or a high resistance package for tougher, high traffic or coastal environments.
Smoother spraying: Our vari nozzle lets you switch between wide and narrow fan patterns with HVLP style atomisation for low overspray and an even finish.

The Lechler based system provides excellent flow, adhesion and long term colour stability across a wide range of substrates (use the correct primer where needed).

Tip: Not sure which paint type or gloss to choose? Tap the info buttons next to Size, Paint Type and Gloss Level, or send us a message or message us on WhatsApp.

Please note: 2K aerosols are supplied in acrylic enamel only.

Frequently Asked Questions

1K: Ready to use. Great for lighter-duty jobs and quick touch-ups.
2K: Built-in hardener in the can for superior chemical/abrasion resistance on demanding surfaces.
2K Air-Dry: 2K performance with a non-isocyanate hardener—easier handling, no separate activator.

Note: Our 2K aerosols are supplied as Acrylic Enamel only.

Good prep is essential: clean, degrease and lightly key the surface. Use the correct primer for the substrate:

Plastics: use a plastic adhesion primer (see our plastic primer).
Glass/Fibreglass: use appropriate glass/fibreglass primers.
Metals: use metal/etch primers; bare steel should be protected promptly.

1K: Light passes; recoat after ~10–15 mins. Typically cures in ~30 mins (conditions dependent).
2K: Recoat after ~20–30 mins. Touch-dry ~40 mins; full cure 24–48 hrs.

Temperature and humidity affect all drying/curing times—test first on a small area.

A 400 ml aerosol typically covers up to ~2 m² per coat on smooth, primed surfaces. Expect 2–4 coats depending on colour, surface profile and the shade you’re covering.

Shake for 2–3 minutes and intermittently during use.
Spray 15–25 cm from the surface in light, even passes; overlap each pass slightly.
Keep the can upright; clear the nozzle with a short burst after use.
Use our vari-nozzle’s wide/narrow fan to suit the area and reduce overspray.

Only with excellent ventilation and appropriate PPE (respirator, gloves, eye protection). Protect surrounding areas from overspray. See our data sheets for details:

Please note: our RAL 7023 Concrete Grey aerosols, tin & pots are custom mixed and should be test-sprayed on a small, inconspicuous area before full application. We cannot accept responsibility for any colour difference once paint has been applied to your surfaces. If the colour is not accurate, please contact us to arrange a return.