Improved opacity with coloured bases


Nor-Maali offers its customers a comprehensive range of polyurethane coatings for anti-corrosion painting of steel surfaces. The colours of the objects to be painted vary from light to dark, including bright shades as well. With Nor-Maali’s polyurethane coatings bright yellow and red shades also have good opacity.

Nor-Maali provides high-quality polyurethane coatings for anti-corrosion painting. The product range includes, among others, Normafine 80, Normafine HS, Normadur 65 HS, Normadur 90 HS and Normadur Aqua DTM coatings. These products have a common feature that customers may not always think of: coloured base paints with excellent hiding power.

Tinting in Nor-Maali

Colours play an important role in industrial painting. They create images and recognizability for machinery and equipment. Many ACE & OEM manufacturers have their own signature shades. The appearance of the product matters in the sales situation, but colours can also be a safety factor in many industrial applications.

When hundreds of different shades of paint are wanted, tinting is the most sensible way to produce them. Instead of manufacturing all the different shades, Nor-Maali produces a few base colours from which all desired shades can be tinted. This keeps inventory levels lower. Most Nor-Maali´s topcoats have three different base colours with varying degrees of whiteness. Additionally, some topcoats are also available in yellow, orange and red bases. Coloured bases offer better opacity for the shades.

Improved opacity with coloured bases

Normadur 65 HS in orange shade.

Nor-Maali´s polyurethane coatings

From Nor-Maali’s polyurethane coatings, Normafine 80, Normafine HS, Normadur 65 HS, Normadur 90 HS, and Normadur Aqua DTM are produced as coloured bases. All of these have a yellow base, and some also have a red base. The widest range of base colours is found in the Normadur 65 HS, which is manufactured in three different degrees of whiteness, as well as yellow, red and orange bases.

From these polyurethane coatings Normafine 80, Normafine HS, Normadur 65 HS and Normadur Aqua DTM are designed to be used as direct-to-metal coatings. This means they must provide sufficient hiding power even without a separate primer.

When the paint is tinted from a clear base colour, often, for example, with yellow shades, paint starts to sag. A large amount of tinting colourant must be added to the paint to achieve the correct shade and good hiding power. The large amount of tinting paste thins the paint, and its thixotropy disappears. With coloured bases, sagging problems reduce. When the opacity and base shade in the paint are achieved with pigments, less tinting paste is needed. Painting becomes easier when thicker and better hiding films can be sprayed with the coating.

In addition to sagging problems, drying-related challenges also ease. When a lot of tinting colourant is added to the paint, it often slows down the drying process. With coloured bases, the drying speed remains more constant, as the amount of tinting paste is smaller.

Improved opacity with coloured bases

Yellow shades have good opacity in Normafine 80 and Normafine HS coatings.

Advantages of coloured bases:


Improved opacity with coloured bases.

Environmental Product Declaration for Normafine 40 HS

15/3/2024 Nor-Maali's solvent-based Normafine 40 HS polyurethane coating has received an Environmental Product Declaration (EPD). Previously, Nor-Maali's products with an EPD included the water-borne Norepox Aqua DTM and six solvent-based coatings.

Speed up Your Production with Nor-Maali’s Normathane 50 FD Polyurethane Topcoat

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Oü Nor-Maali Expands Business Operations in Estonia

11/1/2024 Oü Nor-Maali, a subsidiary of Nor-Maali Oy, is expanding its business operations in Estonia. The company has opened a new branch in Narva, known as the industrial hub of Eastern Estonia. This new facility is part of Nor-Maali's strategy to strengthen its presence in the Eastern Estonian region.

The world’s largest cruise ship, Icon of the Seas, was painted with coatings supplied by Nor-Maali Oy

14/12/2023 The luxury cruise ship Icon of the Seas, built by Meyer Turku, left the shipyard at the end of November. The steel surfaces of the ship were painted with high-quality Jotun coatings supplied by Nor-Maali Oy, including products such as Jotamastic 90, Hardtop AX and SeaQuantum Classic S.

Nor-Maali’s water-borne industrial coatings renew industrial painting

14/12/2023 Water-borne industrial coatings are more environmentally friendly alternatives to traditional solvent-based coatings. Their popularity has gradually increased in industrial painting, where it is essential to minimize VOC emissions. Water-borne industrial coatings designed for metal surfaces offer users several advantages.