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Stesso

Understand Sandpaper Grit

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1:30
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Sandpaper explained

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What happens here

The video begins by explaining sandpaper grit, which indicates the aggressiveness of the abrasive particles. The grit number dictates the particle size: a lower number means larger abrasive particles for more aggressive material removal, while a higher number signifies smaller particles for finer finishes. The presenter categorizes common grit ranges for different applications: 40-80 grit for heavy sanding, 100-220 grit for general sanding, and 300 grit and above for finish sanding. He explains that the grit number is determined by how many abrasive particles fit in one square inch.

Goal: Identify appropriate grit for different sanding tasks

Tools and materials

  • Sandpaper — Demonstrating different grit sizes and their visual appearance

What they say

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Let's start with grit. The grit number tells you how aggressive the sandpaper is. The lower the number, the larger the abrasive particles. The higher the number, the smaller the abrasive particles. The way that they find grit is how many abrasive particles are in 1 square inch. 40, 60, 80 are going to be for your heavy sanding. Your 100, your 120, your 150, and your 220 are your general sanding. And anything 300 and above is your finish sanding. Not all sandpaper is made from the same

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