Usually cellulose-based, used for filling holes and cracks in walls. Ceilings and other plaster or wood surfaces. There is a variety of special-purpose fillers that should be selected according to suitability for a particular job.

Ordinary cellulose filler is suitable for most indoor plaster repairs. A ready-mixed filler is often more convenient and easy to use and will give an extra smooth finish. A special-purpose filler is also available for filling cracks in walls and ceilings – flexible enough to keep cracks covered even if movement occurs. It is self-texturing and one coat is enough to give a good decorative finish. Another special-purpose filler is designed for use on chipped or scratched paintwork.

Exterior fillers are specially formulated to give extra strength and resistance to wear. They can be used for a wide range of outdoor repairs, including work on concrete. Stone, brickwork, cement screeding and rendering.

The specified type of wood filler should be used for interior and exterior repairs. Exterior wood filler will withstand bad weather and is particularly suited for repairs in and around woodwork where the material is subject to a degree of movement.

Grout: Cement-based material, used for filling gaps between ceramic or clay floor tiles. It can be bought in powder form and mixed with water, or as a ready-mixed compound. Always use water-resistant grout on exterior work or where tiles will be exposed to running water, as on the floor and walls of shower units. Note, in addition, that some proprietary grouts contain white pigment. Which gives a better decorative finish than ordinary grout.

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