Gyproc Drywall Primer prepares your surfaces ready for painting decoration. It protects the lining of your surface to ensure better coverage and stronger grip. It can be applied with either a roller or a brush, depending on your needs. If stored correctly and remains unopened, it has a shelf life of three years. After opening, however, it should be used within seven days. Talk to a member of our team today for advice or assistance with this or any of our products by calling us today or find us on Facebook.