Abstract: A spacing device for stacking at least two identically formed, flat plastic molded parts having a contour formed by at least one raised portion, which forms a corresponding depression on the other side of a respective plastic molded part, with at least one peripheral adhesive bead, with which the plastic molded parts, upon being attached to a vehicle component, can each be sealed against the latter, being applied on the edge of each plastic molded part, where the spacing device includes at least two spacer elements and is configured and positionable between two plastic molded parts in such a way that the spacer elements are in contact with both plastic molded parts such that the two plastic molded parts do not touch each other during stacking, and the adhesive bead of a lower plastic molded part does not touch the plastic molded part stacked above it.