Expandafoam is a closed-cell polyethylene joint filler for use as an expansion joint filler in brick and blockwork, isolation joints and hinge joints where a readily compressible low load transfer joint filler is required.
The guitar is a fretted musical instrument that usually has six strings. The sound is projected either acoustically, using a hollow wooden or plastic and wood box, or through electrical amplifier and a speaker. It is typically played by strumming or plucking the strings with the fingers, thumb or fingernails of the right hand or with a pick while fretting the strings with the fingers of the left hand. The guitar is a type of chordophone, traditionally constructed from wood and strung with either
A person who makes or fixes guitars is a luthier, which comes from the word  lute . The word lute, comes from the Arabic Al-Uud, a stringed instrument from the Middle East. The guitar appears to be derived from earlier instruments known in ancient central Asia as the Sitara.his is because they do not use acoustics to amplify the sound. Most guitars have six strings, but there are also guitars with four, seven, eight, ten, or twelve strings. More strings make the instrument sound fuller. The neck of a guitar has bars or marks called frets.