Engine oil suitable for gasoline engines. The second letter in the classification denotes the quality and minimum conditions that the oil must meet.

Safe Weight Limit."

Society of automotive engineers. SAE International is the premier membership society dedicated to advancing mobility engineering worldwide. SAE is a global technology information and standards organisation.

Excessive flow on a vertical surface resulting in drips and other imperfections on the painted surface. Can Occur not only when the paint is wet, but also during baking in certain types of paints.

To smooth a surface with an abrasive paper or cloth.

A method of cleaning metal, usually steel, by applying an abrasive with pressurised air. This is a very efficient method of removing paint and corrosion prior to repainting.

A power tool used with abrasives to roughen up or smooth surfaces quickly.

A hard, flexible block to provide a smooth, consistent backing for abrasive papers used in hand sanding.

Exaggerated distortion of sanding marks in the underlying surface, usually caused by solvents in the topcoat attacking the substrate.

Tracking in the topcoat of sanding marks in the substrate. Usually caused by either flatting with abrasives that are too coarse, or failure to adequately fill sanding scratches with primer fillers/surfacers