Description
The 3M 321U Stikit™ Sandpaper Roll – 400E series is a high-performance abrasive designed for consistent surface preparation, primarily in automotive, marine, and woodworking applications. This roll features premium aluminum oxide grain, delivering a fast cut rate, long life, and a smooth finish.
The Stikit™ backing ensures easy attachment to hand or machine sanding blocks and allows for quick sheet replacement without adhesive mess. The blue backing color helps with visibility during sanding, especially on lighter surfaces.
Key Features
Stikit™ pressure-sensitive adhesive backing for quick and clean attachment
Aluminum oxide abrasive for fast cutting and durability
Excellent for feather-edging, primer sanding, and paint preparation
Rolls easily tear into desired sheet lengths
Blue color improves sanding visibility
Specifications
Part Number: 36226
Model: 321U / 400E
Width: 2.75 inches (70 mm)
Length: 45 yards (41.1 meters)
Backing Type: Paper (A-weight)
Grit: Varies (400E series typically includes grits like P400 – confirm exact grit on label)
Abrasive Material: Aluminum Oxide
Color: Blue
Adhesive Type: Stikit™ (Pressure-sensitive adhesive)
Applications:
Automotive body and paint prep
Wood finishing
Metal and composite sanding
Marine surface smoothing
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