Follow these guidelines in preparing different surfaces.
1.
Rigid Backwall, Wallboard, Plywood, Paneling and Wall Sheathing.
Use a weather resistant barrier to cover the sheathing, overlapping the joints 4” shingle fashion. Following local building codes, install mesh or lath. Galvanized nails or staples should be placed 6” on center vertically and 16” on center horizontally and driven into the studs at least 1”. Lath should be stopped 1” from the finished edges.
2.
Concrete, Masonry, Stucco, Block That Is Clean and Untreated.
No surface preparation is needed. Check new concrete surfaces for form oil. If form oil is present, use muriatic acid to etch the surface then rinse thoroughly and score the surface with a wire brush.
3.
Concrete, Masonry, Stucco, Brick That Is Dirty, Sealed or Painted.
Return surface to original condition by sandblasting or waterblasting (wash area to remove sandblast dust) or attach lath with concrete nails or masonry anchors. Use a bonding agent.
