Sub-category links

Filter By

Brand

Brand

Suitable For Use On

Suitable For Use On

Usages

Usages

Dry to Recoat (@ 20-25°C)

Dry to Recoat (@ 20-25°C)

Product Usage Type

Product Usage Type

Colour Family

Colour Family

Base Type

Base Type

Application Method

Application Method

Finish

Finish

Need Help?

Metal Primers & Undercoats

The range of rust inhibiting primer and undercoats for metal available at Rawlins Paints are compatible with products from the range of topcoats available by the same manufacturer (please refer to product datasheets for product combination recommendations) and provide the perfect start to any painting project. Using the correct metal primer with not only give superior adhesion, allow better coverage, and stain hiding power, it will also protect the underlying metal from rust.

It’s important to choose the right metal primer or undercoat for a project, whether you're looking for something to adhere to a difficult surface, prevent rust from forming, stabilise existing rust or a high-performance system that is going to stand the test of time we have a product suitable. Many of the primers and undercoats available from Coo-Var, International, Jotun, Sherwin-Williams and Rust-Oleum, amongst other manufacturers, have impressive certificates and approvals - including hygiene ratings, fire ratings, Network Rail approval, Highways Agency approval, London Underground approval and more. Ask our Technical Team for help in choosing the right primer or undercoat for your project.

There are 6 products.

Showing 1-6 of 6 item(s)

Active filters

  • Brand: Flag Paints

Flag Anti Rugine (MIO) Anti-Rust Paint

Flag Anti Rugine (MIO) Anti-Rust Paint is a high quality one coat anti-rust metal paint based on Micaceous Iron Oxide. It is a high build primer and/or finish suitable for either brushing or spraying purposes.Ideal for both interior and exterior applications Provides excellent adhesion to ferrous metals and imparts good water resistance...

Price £34.62 (ex. VAT)
In Stock and Available for Delivery

Flag Anti-Corrosive QD Metal Primer

Flag Anti-Corrosive QD Metal Primer is a high build quick air-drying oxide primer for use on ferrous metals, which provides good protection prior to over coating with most solvent based finishing products.Ideal for interior and exterior Industrial Structural Steel Suitable for a wide variety of applications where speed and ease of...

Price £19.64 (ex. VAT)
In Stock and Available for Delivery

Flag Primer Undercoat

Flag Primer Undercoat is a one coat obliterating undercoat/primer alkyd resin system (solvent based) for use under Flag Gloss Paint and other Alkyd based topcoats. The product is ideally suited for kitchens and bathrooms, doors, window frames, furniture and woodwork in general.For interior and exterior use Ideal for woodwork, fibreboards...

Price £9.15 (ex. VAT)
In Stock and Available for Delivery

Flag Rust Converter

Flag Rust Converter is a high performance water based low odour and environmentally friendly primer treatment which neutralises rust and forms a tough black surface. It prevents rust re-occurring and is quick drying and easy to use.For interior and exterior use Suitable for over-coating with solvent based primers or top coats For use on...

Price £8.73 (ex. VAT)
In Stock and Available for Delivery

Flag Undercoat

Flag Undercoat is a superior alkyd undercoat (solvent based product) with excellent obliterating properties. For all general wood and metal surfaces under Flag Gloss Paint and other Alkyd based topcoats. The product is ideally suited for kitchens and bathrooms, doors, window frames, furniture and woodwork in general.For interior and...

Price £9.36 (ex. VAT)
In Stock and Available for Delivery

Flag Advanced Technologies Universal Primer

Flag Advanced Technologies Universal Primer is a water-based primer-sealer for interior and exterior areas, offering low-odour application and quick drying convenience. It also promotes adhesion on difficult surfaces and effectively primes, seals and blocks stains.For use on plaster, wood, concrete and painted surfaces Prevents rust...

Price £17.33 (ex. VAT)
In Stock and Available for Delivery

Sub-category links

Filter By

Brand

Brand

Suitable For Use On

Suitable For Use On

Usages

Usages

Dry to Recoat (@ 20-25°C)

Dry to Recoat (@ 20-25°C)

Product Usage Type

Product Usage Type

Colour Family

Colour Family

Base Type

Base Type

Application Method

Application Method

Finish

Finish

Need Help?

Need Help?

Rawlins Paints stock over 150 metal primers and undercoats, for any scaled project or environment – no matter how extreme the weather conditions are for external application. These range from Rust-Oleum’s CombiPrimer products for smaller surface areas, to Jotun’s Penguard, Pilot and Barrier ranges for larger surface areas in less hospitable environments – such as offshore areas. With many factors determining which primer will be best suit requirements, these may include one or more of the following:

  • Heat resistant surface requirements
  • Full anti-corrosive or chemically resistant system installation
  • Minimum business downtime on a maintenance or extension build
  • A new, submerged environment installation
  • Surface rust present
  • Exposure to high winds, rain, damp/moisture, or sunshine/UV
  • Flexibility and extra durability to protect against light vehicular traffic

Each product page will contain at least one datasheet documenting touch-dry times, surface preparation requirements, storage and application cleaning advice, and when the primer can have additional product coatings applied. Incorrectly applied coatings on-top of the primer/undercoat can drastically jeopardise its protective, rust-inhibiting, chemically resistant properties – so always follow application guidelines in the datasheets.

Rawlins Paints’ blog features many articles detailing how rust-inhibiting primers work, full system installations from primers to topcoats, product recommendations for specialist or unusual environments, as well as topics including how to paint on or over stainless steel.

When to Use Metal Primers

Metal primers may not always be required on a project, but will always remain a recommendation to improve surface and substrate protection, as well as extend the lifespan of the topcoat or full system installation.

A metal primer’s primary job is to stop the metal from getting wet, or coming into direct contact with any form of moisture, damp or humidity. Whilst some metals contain anti-corrosive materials (such as the addition of zinc – which oxidises first, before the metal substrate does), without using a primer as an added precaution, over time the paint system will age and may decay or begin to deteriorate. When this happens, oxidation will begin, and can quickly lead to rust forming on the surface. Flaking and peeling paint on a surface is most commonly caused from a primer not being used. Stripping back topcoats from metal that has begun to peel can be a large and expensive task – colours may fade on larger surface areas over time, and simply treating and recoating smaller areas is not a ‘colour matching’ option.

Please note that not all metal primers are rust-inhibiting. Some provide other forms of surface protection and topcoat/system installation preparation. Red oxide primers are rust-inhibitive and should be used on ferrous metals to prevent rust and substrate surface oxidisation.