Differences Between 1K Paint and 2K Paint

Differences Between 1K Paint and 2K Paint

1. Paint Properties:

• 1K Paint: Single-component paint.

• 2K Paint: Two-component paint.

2. Drying Method:

• 1K Paint: Air-dries naturally.

• 2K Paint: Can be baked or air-dried.

3. Hardness and Finish:

• 1K Paint: After drying, the paint film must be coated with a clear varnish for protection. 1K paint primarily serves as a base color, relying on the clear coat for surface protection.

• 2K Paint: After drying, a clear coat is optional, or the paint can be mixed with varnish before application. In terms of performance, 2K paint is superior to 1K paint, offering better hardness and durability.

5. Mixing Ratios:

• 1K Paint: Mixed directly with a thinner for spraying (a two-step process). The mixing ratio with thinner is 1:1, and no hardener is required. Since 1K paint dries to a matte finish, a clear coat (mixed with hardener and thinner) must be applied afterward to enhance gloss and durability.

• 2K Paint: Due to potential particle settling, the ratio of paint to thinner is typically 1:2. Oil-based paints generally follow this rule. Additionally, the choice of thinner is flexible—specialized thinners like GAIA are not mandatory.

6. Materials Added to 2K Paint:

  Before spraying, 2K paint must be mixed with hardener and thinner. This is a one-step process, as 2K paint inherently provides a glossy finish, eliminating the need for an additional clear coat.