Sto BTS-Plus 47B Basecoat

“Through the wall”: 55-75 ft² (5.1-7.0 m²) per bag (when used for both adhesive and base coat applications).

As an adhesive over sheathing and smooth masonry: 90-135 ft² (8.4-12.5 m²) per bag, applied with a 1/2" x 1/2" (13 mm x 13 mm) U-notched trowel having 2” (51 mm) spread between notches.

As an adhesive over rough or uneven masonry: 30-45 ft² (2.8-4.2 m²) per bag, applied with a 5/8" x 5/8" (16 mm x 16 mm) square-notched trowel having 5/8” (16 mm) spread
between notches

As a base coat: 80-125 ft² (7.4-11.6 m²) per bag

As a skim coat: 90-135 ft²= (8.4-12.5 m²) per bag.