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Floor Covering / Substrate  | 
Applicator Size  | 
Approx. Spread Rate feet² / gal.  | 
Approx. Spread Rate yards² / gal.  | 
|---|---|---|---|
Broadloom Carpet: rough back, woven, double stick carpet to cushion  | 
1/8” x 1/8” x 1/8” U or Square notch (3.2mm x 3.2mm x 3.2mm)  | 
50 – 90  | 
6 – 10  | 
1/8” x 1/8” x 1/16” U notch (3.2mm x 3.2mm x 1.6mm)  | 
45 – 75  | 
5 – 8  | 
|
Broadloom Carpet: Action Bac®, unitary back, jute  | 
1/8” x 1/8” x 1/8” V notch (3.2mm x 3.2mm x 3.2mm)  | 
90 – 110  | 
10 – 12 
  | 
1/8” x 1/8” x 1/16” V notch (3.2mm x 3.2mm x 1.6mm)  | 
70 – 90  | 
8 – 10  | 
|
Broadloom Carpet: smooth back, attached cushion, needle punched, cove base  | 
3/32” x 3/32” x 3/32” V notch (2.4mm x 2.4mm x 2.4mm)  | 
90 – 135  | 
10 – 15  | 
Vinyl back broadloom carpet, carpet pad to floor double stick, cork tile and underlay  | 
1/16” x 1/16” x 1/16” Sq. notch (1.6mm x 1.6mm x 1.6mm)  | 
160 – 180  | 
18 – 20  | 
Vinyl back broadloom carpet, carpet pad to floor double stick, cork tile and underlay  | 
1/16” x 1/16” x 1/16” U notch (1.6mm x 1.6mm x 1.6mm)  | 
160 – 180  | 
18 – 20  | 
Carpet tile  | 
3/8” Nap Paint Roller (9.5mm) 3/4” Nap Paint Roller (19.0mm)  | 
350 – 400 270 – 360  | 
35 – 45 30 – 40  | 
Note: Above dimensions are given as width x depth x spacing. Spread rates vary with texture and porosity of the substrate. Trowels should be held at a consistent 45–60° angle to apply adhesive. Examine notches regularly for wear.