https://nationaldrywallauthority.com/drywall-primer-and-paint-preparation/
Drywall Primer and Paint Preparation
Drywall primer and paint preparation encompasses the surface treatment processes applied to gypsum board assemblies before finish coatings are installed....
drywall primerpaintpreparation
https://www.homedepot.com/p/KILZ-PVA-5-Gal-White-Interior-Drywall-Primer-PX01005/202665645
KILZ PVA 5 Gal. White Interior Drywall Primer PX01005 - The Home Depot
Achieve a uniform and professional quality finish with the help of this KILZ PVA Primer. Flat finish provides a non-reflective appearance.