Norton 66261139356 Sanding Sheet 320 Grit Silicon Carbide

Product Description

The NORTON 66261139356 is a 320-grit silicon carbide sanding sheet designed for fine finishing work on hard surfaces. Rated Extra Fine grade, this sheet uses an open-coat configuration that resists loading during use. The B-weight paper backing provides a balance of flexibility and durability suited to hand sanding and light machine sanding applications. Silicon carbide abrasive cuts harder materials more aggressively than aluminum oxide at comparable grit levels, making it a preferred choice for finishing metal, ceramics, plastic, and hardwood. This sheet is part of the Norton T414 series and is rated for both dry and wet sanding applications.

This sanding sheet is used in finishing and surface-prep operations where tight grit tolerances and consistent cut are required. Wet or dry capability makes it suitable for between-coat sanding on lacquer, varnish, and primer, as well as final surface prep on metal and stone. The open-coat structure helps extend sheet life when working softer or resinous materials. Tradeworkers, auto body technicians, woodworkers, and fabricators commonly specify 320-grit silicon carbide sheets for final smoothing before topcoating or polishing.

Key Features

• 320 grit Extra Fine silicon carbide abrasive for final-pass surface finishing
• Open-coat density reduces clogging and extends usable sheet life
• B-weight paper backing offers flexibility for contoured and flat surface work
• Rated for both wet and dry sanding applications
• Part of the Norton T414 series for consistent performance across the line

Compatibility

Designed as a standard sanding sheet for hand sanding blocks and compatible sheet sanders accepting the applicable sheet dimensions.

Installation Notes

Sheet sanding is performed by hand or with a compatible sheet sander. Secure the sheet firmly to avoid slipping during use. For wet sanding, ensure the work area and any power tools used are rated for wet conditions. Replace sheets when abrasive becomes glazed or loaded to maintain consistent surface finish.