Rubber squeegees consist of rubber channels, which come in strait, curved, push and pull forms. It is formulated to withstand fiberglass cleanup solvents such as acetone and water based emulsifiers. It is flexible to match the contour of most irregular shapes and surfaces. Rubber squeegees are used in traditional screen-printing. It is sensitive to different printing variables such as squeegee pressure and aperture size. The rubber is specified at different hardness levels in order to accommodate different process requirements.