How to choose a right non-woven abrasives coating resin

Non-woven abrasives consist of a web of nylon fibers impregnated with abrasive grains bonded with synthetic resins.  Non-Woven products are ideal for cleaning, blending, deburring, stripping, finishing and surface prep.

Recent innovations in fiber and resin technology have created new products for more finishing applications. Non-woven abrasives provide a controlled cut and consistent uniform finishes. These products are waterproof, washable, non-conductive, non-metallic, non-rusting and solvent resistant.

There are multiple forms of Non-Woven Abrasives:

Hand Pads， Belts， Discs， Sheets， Rolls， Flap Wheels， Convolute Wheels， Unitized Wheels & Discs

Abrasive products used for finishing of metal and non-metallic workpieces in the production plant are generally categorized into two main groups: bonded abrasives (usually grinding wheels) and coated abrasives (belts, discs, sheets, etc.). These are the products used to remove stock during the production process. But there is a third category of abrasives that serve a specialized and highly necessary function of preparing and applying the final surface finish, which can be critical to the performance and appearance of the workpiece. These are the non-woven abrasives. These products are manufactured using a “web” of nylon fibers that are bonded together (not woven together – hence the name) with synthetic resins. The fibers are impregnated with abrasive grain, producing a cushioned, three-dimensional material that is pliable, conformable to the workpiece, and long-lasting. Non-woven abrasives can be the ideal grinding products for deburring, cleaning, and imparting the desired finish to a wide variety of materials. A basic understanding of how these products are made, and how they should be selected and used to their maximum benefit, can help the metalworking manufacturer achieve the desired surface finish.

While non-wovens are made in a different way than conventional coated abrasives, both types of products use many of the same abrasive minerals. Silicon carbide is sharper, cuts faster and produces finer scratch patterns on most surfaces. Aluminum oxide is more durable and tends to last longer. It is more aggressive on certain applications (such as hardened steel parts), and produces less discoloration on aluminum. When the non-woven supplier talks about grit, he is referring to the size of the abrasive grain impregnated into the nylon web. The lower the number, the larger the grains. Use of large particles (coarse grit) results in a more aggressive cut and a coarser finish. Small size particles result in a non-woven product that produces fine surface finish, if all other conditions are equal. In specifying a conventional bonded or coated abrasive product, the purchaser selects a specific grit size – say, 120 grit. With non-woven abrasives, by comparison, one of the following designations is used:

Grit Designation and Comparable Grit Ranges

Coarse (C) 50 – 80， Medium (M) 100 – 150， Fine (F) 180 – 220，  Very Fine (VF) 240 – 360， Ultra Fine (UF) 600， Micro Fine (SF) 1000 – 1200

This information will assist the user in selecting non-woven abrasives to complement their bonded and coated abrasives arsenal.  

Ruico have formulated a series of acrylic resin for spray and dipping coating in the production of abrasives,for more details, please contact:

Young Yao

Marketing development manager

Zhejiang Ruico Advanced Materials Co., Ltd. (Stock No.873233)

Add: No.188, Liangshan Road, Linghu Town, Nanxun District, Huzhou City, Zhejiang Province, China 313018

Phone: +86 (572) 2903236

Fax: +86 (572) 2905222

WhatsApp: +86 15088303595

Wechat: 18458299199