How to Ensure Good Adhesion Over a Bare Plastic Substrate

To ensure good adhesion over a bare plastic substrate requires that it be cleaned properly and coated with adhesion promoter before application of an undercoat. This standard operating procedure (SOP) covers using PPG’s National Rule VOC system for preparing unprimed plastic. The system features four essential products from PPG's OneChoice® line of specialty products: SU4901 Clean and Scuff Sponge, SU4902 Plastic Adhesion Wipe, SU4903 Advanced Plastic Bond — also available as an aerosol, product code SUA4903 — and SXA103 Multiprep Cleaner.

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