Resins are present in many paints and most varnishes.
Resins are defined as either a binder or a varnish layer used on a coat of paint. Many paints have a certain amount of resin inside them that is used to bind the paint to the surface on which it is applied. Varnishes use resin to provide a thick, protective coat to the paint to keep it from wearing down and peeling.
Resins often use various types of solvents that are considerably more dangerous to humans than the resin itself, and care should be taken in the workplace when using and disposing of resin materials. States may have additional guidelines that extend federal codes.
Application
When working in confined spaces where fumes are a problem, government rules require significant ventilation systems or the use of gas masks and other protective devices, especially when working with volatile paints. No one should be able to enter the confined spaces unless they have been authorized to do so.
Because many resins also can be absorbed by the skin and cause damage, protective clothing should be worn to minimize total exposure to the resin. If any spills take place and the paint is flammable, turn off all nearby ignition sources and clean up the spill immediately.
Cleanup
After work is done, any excess paint should be returned to the can and the can sealed. All brushes and tools should be washed with water that drains straight to a sanitary sewer system.
Disposal
If the paint has become unusable because of age or contamination, it should be taken to a designated facility used for treating hazardous waste and disposed of properly there.
The primary exception is resin latex paint. If this paint has naturally dried out over time, it can be disposed of in the trash safely, along with any cans that are completely devoid of resin paints.
Gear and Components
Proper gear in a professional environment usually consists of a spray booth for protection of the painter operating high-powered, resin-spraying machinery, along with impermeable overalls and gloves. A full face shield and a respirator are often required.
Vessels that are used to mix large amounts of paint should be properly cleaned out using caustic solutions, then hosed down with water. If there are any cans of resin or other materials used to make resin paint, they should be stored in well-ventilated areas and treated as hazardous materials.
Empty Cans
Cans are generally considered empty when no more paint can be removed from them by chipping, scraping or using aerosols. The chips should be gathered in a plastic bag before being thrown into the trash.
