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Two Component Polyurethane Coatings

September 3, 2014

Two component (also referred to as 2K) polyurethane coatings are paints that require the intermixing of resin with a hardener. This causes a reaction that chemically bonds the two components together to produce a paint film that is generally  superior to one component paints in several ways:

  1. Chemical resistance
  2. Fade resistance
  3. Abrasion resistance

While not all two component polyurethanes are equal in composition and performance, as a class, they are considered the gold standard for liquid coatings. Their excellent appearance and durability make them a popular finishing choice for a wide range of products and substrates.


Cars Metal
Aircraft Wood
Ships Plastic
Tractors Glass
Furniture Porcelain
Electronics Concrete

The cost of two component polyurethane ranges from $75 to $150 per gallon depending on the color. Although more expensive than one component enamels, 2K polyurethanes are often more cost effective because of their superior gloss, color retention and excellent durability.

Additionally, saturated colors – bright reds, yellows, blues and greens – can be made by intermixing high-hiding bases that require fewer coats or less film thickness for full coverage, which reduces material and labor cost.

Carbit Paint in Chicago supplies CARBITHANE, a two component acrylic polyurethane, in standard (see Industrial Color Card) and custom colors using its proprietary intermix system. Whether you need a gallon or a drum, a red or a blue, a satin or a gloss, Carbit can provide the solution.

Author: Bob Lyons, Carbit Paint Co.