An apparatus for continuous degassing of a chemical component (2) intended for forming a reactive resin for producing, in particular, wind blades, comprises a degassing column (3) having a bounding wall (4) that defines a degassing volume (V), traversable by the chemical component (2), in which a certain degree of vacuum is created. In the degassing volume (V) a series of lamina elements (5) is stacked that is arranged for receiving the chemical component (2) on respective receiving surfaces (SA, SB) to distribute the chemical component (2) by forming thin coats thereof that promote the release of gas by the chemical component (2). The lamina elements (SA, SB) comprise pairs of opposite tapered elements (5A,5B) that are obtained from sheet metal shaped plastically by rolling and are shaped to advance by gravity the chemical component (2) according to a path (P) with alternating corners that extends from top to bottom. Level sensor means is provided for controlling respectively: an accumulating level (L1) of the chemical component on the bottom of the column (3) (to regulate the removal flowrate from the bottom); an accumulating level (L2) on the container (11) for entry to the stack of tapered plates (5A, 5B) (for adjusting the entry flowrate to the column (3)); a safety accumulating level (L3) of the quantity of chemical component (2) that accumulates in the inlet container (11). The bounding wall (4) is transparent to permit visual control from the exterior of the advancement and accumulation status of the chemical component (2).