The primer must be used when bonding different plastics, including acrylic, foamed PVC, ACP (aluminium composite panels), and solid PVC.
This is a bonding primer and is used together with an adhesive (sealant). Pre-treating with the primer is necessary, as the adhesive will otherwise not adhere properly to the plastic surface. The primer is sold in a 500-ml tin.
The primer is required for the following materials and adhesive combinations: