3D lamination involves gluing PVC film materials to a milled wood base (MDF, chipboard). For high-quality bonding, special water-based polyurethane (PU)-based dispersion adhesives are used. PU has excellent heat and water resistance, and good adhesion to PVC and PET films.

The adhesive is applied to the board using a special spray gun. After the adhesive dries, the board is placed in a hot vacuum membrane press, where the adhesive is reactivated and the adhesive layer is formed on the board.

Two types of PU dispersions are used for 3D lamination:

- one-component, ready-to-use, PU dispersions: Kleiberit 430.3, 435.7, 430.7, 431.7

- Two-component PU dispersions that require the addition of a special hardener, Kleiberit 807.0, to improve the heat resistance of the adhesive bond. These include Kleiberit 436.3, 436.7, and 432.9.

To control application, some PU dispersions may be tinted blue or have a fluorescent additive that only becomes visible under the glow of a UV lamp.