Glossary

Very thin aluminum sheet (less than 0.006 in. or 0.15 mm); usually used for thermal insulation and vapor barriers.

A paint made with aluminum paste and a film-forming vehicle (such as a varnish); a good heat and light reflector;

Small flakes of aluminum metal obtained by stamping or ballmilling foil in the presence of a fatty lubricant, such as

On drawings, abbr. for alteration

A chemical compound added to gypsum plaster to make the plaster harden faster.

The oxide of aluminum; an important constituent of the clays used in brick, tile, and refractories.