Marblezing- The application of a finish process used to make it have the appearance of marble. 

Marine Varnish- Varnish that is specially designed for immersion in water and exposure to the elements, including the marine atmosphere. It is often called spar varnish.

Masking Paper-A paper that is held in position by a strip of masking tape and used to temporarily protect surfaces adjacent to those being painted.

Masking Tape- Easily removable tape used to temporarily cover bands or small areas next to the area to be painted. It is important to remove masking tape promptly, because it is likely to dry out and leave a troublesome residue if left for more than two days or exposed to sunlight and heat.

Masking- Temporary covering of areas not to be painted.

Mastic-A heavy-bodied paste-like coating of high build. Mastic is often applied with a trowel.

Material Safety Data Sheet (MSDS) A document that lists hazardous ingredients and safety information related to products used in the workplace.

Metallics- Paints that include metal flakes.

Mildew Resistance- The ability of a coating to resist the growth of molds and mildew. Mildew is particularly prevalent in warm, humid climates.

Mildewcide- An agent that helps prevent mold or mildew growth on paint.

Mil- One one-thousand of an inch.

Mill White- One coat high hiding for interior paint.

Mineral spirits- Petroleum solvent for paint thinning and clean-up.

Mottling- An uneven layer of paint,speckling.

Multicolor Finishes- Paints containing flecks of colors different from the base color.