Side-by-Side Comparison
Paint & Surface Prep
Paint Rollers & Brushes vs. Sandpaper Grits
Comparing 2 standards across 15 specifications. 15 key differences identified.
Comparing:
Paint Rollers & Brushes
Sandpaper Grits
Paint applicator standards classify roller nap thicknesses by surface texture: 1/4" for ultra-smooth cabinets, 3/8" for standard interior drywall, 1/2" for light texture, and 3/4" for rough brick and cinder block, paired with 2.0–2.5" angled sash brushes for cutting-in.
Coated abrasive sandpapers standardize abrasive particle sizes under CAMI (US) and FEPA 'P' (ISO 6344) scales: Extra Coarse (24–36 grit for heavy stripping), Medium (80–120 for wood prep), Fine (150–180 for finish sanding), and Ultra-Fine (320–600 for wet intercoat sanding).
Specification Comparison Table
15 Parameters| Parameter / Spec | ||
|---|---|---|
|
Governing Standards
|
ABMA Paint Applicator Standards / ASTM D5068 | ISO 6344 (FEPA P-Grade) / ANSI B74.18 (CAMI Standards) |
|
1/4-Inch Nap (6 mm)
|
Ultra-smooth surfaces: metal doors, smooth cabinets, trim (Zero stipple) | — |
|
3/8-Inch Nap (10 mm)
|
Standard smooth interior drywall and ceilings (Universal benchmark) | — |
|
1/2-Inch Nap (13 mm)
|
Medium surfaces: orange peel textured drywall, acoustic ceilings, wood | — |
|
3/4-Inch Nap (19 mm)
|
Rough surfaces: knockdown texture, stucco, exterior wood siding | — |
|
1 to 1-1/4 Inch Nap
|
Extra rough: masonry, brick, cinder blocks, split-face stone | — |
|
Standard Roller Width
|
9 inches (22.9 cm) standard | 4-inch mini roller for trim/behind toilets | — |
|
Angled Sash Brush (2.5")
|
2.5 inches (6.4 cm) angled bristle | Universal standard for cutting-in edges | — |
|
Extra Coarse (24–36 Grit)
|
— | 530–710 µm | Rapid material removal, heavy paint stripping, floor sanding |
|
Coarse (40–60 Grit)
|
— | 250–425 µm | Rough wood shaping, deep scratch removal |
|
Medium (80–120 Grit)
|
— | 125–200 µm | Leveling bare wood, initial drywall sanding (Benchmark) |
|
Fine (150–180 Grit)
|
— | 82–100 µm | Final bare wood sanding before stain or primer |
|
Very Fine (220–240 Grit)
|
— | 53–68 µm | Light sanding between coats of paint/polyurethane |
|
Ultra Fine (320–600 Grit)
|
— | 26–46 µm | Wet sanding, lacquer smoothing, metal polishing |
|
Micro Fine (1000–3000 Grit)
|
— | 6–18 µm | Automotive clearcoat wetsanding and mirror finish buffing |