- Always comply with ANSI B7.7 - 2003 (R2011) Safety Requirements for Abrading Materials with Coated Abrasive Systems and OSHA regulations.
- Always wear impact-resistant safety glasses or eye shields when using any coated abrasive.
- Operators using machine or tool-mounted coated abrasives should wear dust masks, aprons, arm guards, gloves, hearing protection and safety shoes as is necessary to ensure safe use.
- Most dusts generated when grinding are from the material being ground. Excessive dust inhalation may affect the breathing function. To avoid potential respiratory impairment, always use proper ventilation controls and other protective measures to the materials being ground.
- If a machine/tool is design for or equipped with guards, it should not be operated without the guards properly installed into place.
- All machine/tool adjustments and abrasive product installation and removal should be done with the power service in the off position.
- Coated abrasive back-up pad systems should be rated equal to or greater than the maximum no-load speed of the machine/tool. Refer to maximum RPM ratings as marked by the manufacturer.
- Coated abrasive discs requiring back-up pad systems should always be like-sized.
Many coated abrasive backings are made with wood pulp and/or cotton, which can absorb or lose moisture as the relative humidity changes. These atmospheric changes can impact the physical properties of the product (e.g., shape, flexibility, size, flatness, etc.). Recommended storage conditions for coated abrasive forms are 40% to 50% relative humidity and 60˚ to 85˚F (15˚ to 29˚C).
Coated abrasives should be stored several inches (4") above concrete flooring, away from open windows, direct sunlight and heat sources such as radiators, furnaces and steam pipes. It is also suggested that coated abrasives be stored in their original containers and packaging until needed.
Coated abrasives generally have extremely long shelf lives, however, they should be used on a first-in, first-out basis.
Selection & Inspection
The properties of backing materials used for coated abrasives vary greatly (e.g., type, strength, flexibility, durability, resistance to water absorption, etc.) and will influence or determine the range and type of use. Always be sure to refer to all provided information for safe operational use.
Coated abrasive products, especially those to be used on power tools and mechanical equipment, should be visually inspected for defects and abnormalities prior to use. For example, abrasive discs such as resin fibre discs should not be used if they exhibit nicks, cuts, or tears around the center hole or the other edge of the disc perimeter.
Always check the machine/tool operating speed against the established maximum safe operating speed of the abrasive product to be used.