Mr.Hobby GSI-MT304 Waterproof Sanding Sheets #400 - 4 Pack  [GSI-MT304]

Hobby-Grade Sanding with Mr.Hobby GSI-MT304

For enthusiasts refining RC components, the Mr.Hobby GSI-MT304 sandpaper delivers reliable #400 grit performance. A pack of four sheets provides enough material for a few projects or repeat passes on stubborn areas.

Preparing Parts Before Painting

These waterproof sheets handle final sanding steps before primer and colour coats, allowing wet sanding to reduce dust and reveal a smoother surface on plastic, resin and metal pieces.

How #400 Fits into Your Workflow

#400 sits between coarse and fine grits, making it ideal for removing light imperfections and blending seams without excessive material removal. That makes it a solid middle-stage option for many model builds.