What role does protective film on panels play in the discolouration of sealant?

Many panels are supplied with a temporary protective film that is applied to the surface with adhesive. During installation, this film is removed, but adhesive residues may remain. If the sealant comes into contact with these residues, this can lead to discolouration.

 We therefore recommend thoroughly cleaning the substrate with a suitable cleaner before applying the sealant. The Multi-Purpose Super Cleaner is suitable for this, as well as for other applications.