A Comprehensive Guide to RAL Coloured Silicone Sealants

When it comes to professional sealing solutions, RAL coloured silicone and RAL mastic offer both functionality and aesthetic appeal. These specialised sealants provide a perfect colour match for construction, glazing, and industrial projects, ensuring seamless integration with surrounding materials.

What is a RAL Coloured Sealant?

A RAL coloured sealant is a type of sealant available in RAL colours, which are standardised shades defined by the RAL Colour Matching System. This system, provides a consistent colour reference for paints, coatings, and sealants, ensuring uniformity in industrial applications.

There are two main types of RAL coloured sealants:

1. RAL Coloured Silicone Sealant – A flexible, waterproof sealant ideal for glazing, bathrooms, and outdoor applications.
2. RAL Mastic Sealant – A high-performance, elastic sealant often used for expansion joints, cladding, and structural bonding.

Both types are available in a wide range of colours to match materials such as brick, metal, glass, and wood.

Benefits of RAL Coloured Silicone and Mastic

Using RAL coloured silicone or RAL mastic offers several advantages:

• Perfect Colour Matching – Ideal for achieving a seamless finish in construction and design projects.
• Durability & Weather Resistance – Suitable for both indoor and outdoor use, with excellent resistance to UV rays, moisture, and temperature fluctuations.
• Elasticity & Flexibility – RAL mastic and silicone sealants accommodate movement in expansion joints and structural gaps without cracking.
• Versatile Applications – Suitable for use on a variety of surfaces, including aluminium, uPVC, glass, concrete, and cladding.
• Professional Finish – Enhances the overall aesthetic appeal of a project by ensuring that sealant lines blend into the existing structure.

Common Applications for RAL Coloured Sealants

1. Glazing & Window Frames

RAL coloured silicone is widely used for sealing windows, curtain walls, and conservatories, ensuring that the sealant colour matches the frame for a clean and professional appearance.

2. Expansion & Construction Joints

RAL mastic is commonly used in brickwork, concrete structures, and external facades, allowing for movement while maintaining an airtight seal.

3. Bathrooms & Kitchens

A RAL coloured silicone sealant provides a waterproof and mould-resistant seal for sinks, bathtubs, and tiles, ensuring a long-lasting and hygienic finish.

4. Industrial & Automotive Applications

Certain industries require precise colour matching for sealants used in automotive assembly, machinery, and manufacturing, where aesthetics and performance are equally important.

Choosing the Right RAL Sealant

When selecting a RAL silicone or RAL mastic, consider the following factors:

• Material Compatibility – Ensure the sealant is suitable for the surfaces involved.
• Movement Accommodation – Choose a sealant with the appropriate flexibility for your application.
• Exposure Conditions – Consider UV resistance, moisture protection, and temperature tolerance.
• Colour Selection – Check the RAL colour chart to find the exact match for your project, our team will also be able to assist with this!

Order via our website today

Whether you’re working on glazing, construction, or industrial applications, choosing the right RAL silicone or RAL mastic ensures a high-quality, professional finish. With superior durability, flexibility, and colour-matching precision, these sealants are essential for architects, contractors, and DIY enthusiasts alike. By selecting a RAL-certified sealant, you can guarantee long-term performance and seamless integration into your project.

Browse and order our range of RAL sealants via our website today!