Backing cloth determines sandpaper’s performance, polishing precision and service life. Polyester is cheap but performs poorly. Nylon has clear edges over polyester. It fits various grinding works, and serves high-end sandpaper and industrial grinding perfectly.
Better Wear Resistance Than Polyester, Durable & Cost-Saving
Sandpaper grinding needs high-frequency friction, so nylon shows better wear resistance than polyester. Polyester is brittle and weak in friction resistance, so it pills, breaks and loses stickiness easily, and it shortens sandpaper life. But nylon is tough and firm, so it resists wear and bending, and it lasts longer and cuts replacement costs greatly.
More Flexible & Resilient, Perfect for Curved Grinding
Grinding works for flat, curved and special parts, and it needs flexible Velcro cloth. Nylon Velcro cloth is super flexible, yet polyester Velcro cloth is not. Polyester cloth is hard and has bad resilience, so it creases easily and cannot recover. Also, it warps when fitting special parts, so it makes sandpaper grind unevenly and leave scratches. And nylon cloth is soft, so it bends freely and fits all workpiece shapes. It fits furniture, car paint and moulds well, so it avoids warping and boosts grinding precision greatly.
Higher Heat & Corrosion Resistance, Stable in Harsh Work
Grinding makes heat and contacts oil or water, so stability matters a lot. Polyester Velcro cloth fails easily here, for it has poor heat resistance. It softens and deforms in high heat, and it goes bad in wet or oily conditions. But nylon Velcro cloth resists heat and erosion well. It stays firm in dry or wet grinding, and it sticks tightly to sandpaper even in tough working environments.
Stronger Adhesion, Fit for Mass Production
Nylon Velcro cloth also has better adhesion than polyester. Polyester sticks poorly and peels off easily, so it makes more bad products. But nylon bonds well with sandpaper glue, so it never separates easily. Besides, it is easy to cut and process, so it fits automated production lines and raises work efficiency.
Conclusion
In short, nylon Velcro cloth beats polyester in wear, flexibility, heat resistance and adhesion. It fixes polyester’s flaws and improves sandpaper quality. It is the top choice for sandpaper backing and fits high-precision heavy-duty grinding well
