Prep M is a primer and must be used when bonding various plastics, including Acrylic, Foamed PVC, Aluminium composite, and Hard PVC.
Prep M is a bonding primer and is used in combination with an adhesive (sealant). Pre-treating with Prep M is necessary because the adhesive will not adhere sufficiently to the plastic substrate otherwise. Prep M is sold in a 500-milliliter can.
Prep M is required for the following materials and adhesive combinations: