Should I choose 1K or 2K for my project?

1K is ready to use and suited to light to medium duty and touch-ins. 2K is hardener activated and offers higher chemical and abrasion resistance for exterior metalwork, shopfronts and high-traffic areas.

What PPE do I need, especially for 2K?

Use appropriate respiratory protection, eye protection and gloves, with good ventilation. Follow the product safety data sheet for detailed PPE guidance, especially with 2K systems.

What is pot life and why does it matter for 2K?

Pot life is the workable time after hardener activation. Once expired, the coating thickens and performance drops. Activate only what you can use within the recommended window; temperature will affect pot life.

Can I apply 2K over an existing 1K coating?

Yes, if the existing coating is sound. Clean, degrease and abrade to a uniform key, and use a compatible primer where needed. Always test a small area first.

Which sheen works best outside or on high-touch surfaces?

Satin 30 percent is a common choice for shopfronts and doors. Semi gloss 60 percent offers a brighter look with good cleanability. Full gloss 90 percent maximises shine but highlights surface imperfections.

Do aerosols cover as well as tins and what is a typical yield?

A 400 ml aerosol typically covers up to around 2 square metres per coat. Tins with compliant spray gear can deliver higher transfer efficiency. Coverage depends on colour, surface profile and application technique.

RAL Effect 620-M - Blue Aerosol Spray Paint 400ml

Buy RAL Effect 620-M - Blue Aerosol Spray Paint 400ml, colour matched & mixed to order. Available in 1K or 2K with matt, satin or gloss finishes. Professional fan nozzel, even coverage & fast UK delivery.

Product Name: RAL Effect 620-M - Blue Aerosol Spray Paint

Manufacturer: One Stop Aerosols

Product Code: RAL11985

Price: £12.99 – £74.99

Availability:In Stock

RGB Colour Code: 9-50-70

Hexadecimal Colour Code: #0a3247

30-day returns policy on all eligible faulty products. Read more about our returns policy.

Product Overview

RAL Effect 620-M - Blue Aerosol Spray Paint sits within the RAL Effects Aerosol Spray Paint Colour Chart. Every batch is mixed to order using high-grade Lechler binders and colourants, promoting consistent colour across aerosols and tins.

Formats: 400 ml aerosols in 1K (ready to use) or 2K (with integrated hardener), 1 litre tins, plus touch-up pots and pens.
Finishes: Matt 0%, Satin 30%, Semi-gloss 60%, Full gloss 90% - select the sheen to match your specification.
Add-ons: UV protection for exterior exposure, or a High-Resistance package for coastal and high-wear conditions.
Spray control: Vari-nozzle cap providing wide or narrow fan patterns, HVLP-style atomisation and reduced overspray.

The Lechler-based formulation delivers smooth flow, strong adhesion and durable colour stability on diverse substrates. Always use the correct primer where specified.

Need guidance? For help choosing paint type or gloss level, tap the info icons beside Size, Paint Type and Gloss Level, or send us a message. For a faster reply, contact us on WhatsApp .

Safety Data Sheets

Customer Reviews

Callum S.

★ ★ ★ ★ ★

2K railing repaint still glossy after months. ...read more

10 Dec 2024

Jakub C.

★ ★ ★ ★ ★

HVLP style atomisation reduced masking. ...read more

15 Feb 2019

Nora H.

★ ★ ★ ★ ★

Even colour across mixed substrates. ...read more

11 May 2018

Frequently Asked Questions

1K: Ready to use, quick to apply, good for light to medium duty projects, small parts and touch-ins.

2K: Hardener activated, higher chemical and abrasion resistance, better for exterior metalwork, shopfronts and high-traffic areas.

Rule of thumb: If durability, cleaning resistance or exterior exposure are key, choose 2K.

Use appropriate respiratory protection, eye protection and gloves. Ensure good ventilation. Follow the product safety data sheet for specific PPE guidance, especially when using 2K systems.

Tip: Work in well ventilated spaces and avoid spraying near ignition sources.

Pot life is the workable time after the hardener is activated. After this window the material thickens and performance will drop. Only activate what you can use within the recommended time.

Tip: Warmer temperatures reduce pot life, cooler temperatures extend it.

Often yes, if the existing coating is sound. Clean, degrease and abrade to a uniform key. Use a compatible primer where needed and always test a small area first.

Avoid: Applying over poorly adhered, chalky or reactive finishes without proper preparation.

Satin 30%: Popular for shopfronts and doors, balances appearance and cleanability.

Semi gloss 60%: Brighter look with good wipe-down performance.

Full gloss 90%: Maximum shine and improved cleanability. Highlights substrate imperfections more than lower sheens.

A 400 ml aerosol typically covers up to approximately 2 m² per coat. Tins applied with compliant spray gear may achieve higher transfer efficiency. Coverage varies with colour, surface profile and technique.

Tip: Keep the nozzle clean and maintain consistent distance and speed for even film build.

Please note – Our aerosol cans, litre tins and touch up and repair pots/pens are custom mixed and should be tested before application. We do not take responsibility for any colour difference once you have applied the paint to your surfaces. If the colour is not accurate, please contact us to arrange a return.