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For other uses, see Mold (cooking implement).
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One half of a bronze mold for casting a socketed spear head dated to the period 1400-1000 BC. There are no known parallels for this mold.
Stone mold of the Bronze Age used to produce spear tips.
Ancient Greek molds, used to mass-produce clay figurines, 5th/4th century BC. Beside them, the modern casts taken from them. On display in the Ancient Agora Museum in Athens, housed in the Stoa of Attalus.
Ancient wooden molds used for jaggery & sweets, archaeological museum in Jaffna, Sri Lanka.
Molding or moulding (see spelling differences) is the process of manufacturing by shaping liquid or pliable raw material using a rigid frame called a mold or matrix.1 This itself may have been made using a pattern or model of the final object.
A mold or mould is a hollowed-out block that is filled with a liquid or pliable material like plastic, glass, metal, or ceramic raw materials.2 The liquid hardens or sets inside the mold, adopting its shape. A mold is the counterpart to a cast. The very common bi-valve molding process uses two molds, one for each half of the object. Piece-molding uses a number of different molds, each creating a section of a complicated object. This is generally only used for larger and more valuable objects.
The manufacturer who makes the molds is called the moldmaker. A release agent is typically used to make removal of the hardened/set substance from the mold easier. Typical uses for molded plastics include molded furniture, molded household goods, molded cases, and structural materials.
Chair rail ? horizontal molding placed part way up a wall to protect the surface from chair-backs, and used simply as decoration
Chamfer ? bevelled edge connecting two adjacent surfaces
Chin-beak ? Concave quarter-round molding. There are few examples of this in ancient buildings, but is common in more recent times.2
Colonial ? ?Colonial? mouldings are very widely used in various places and has been around for very long time. This profile can be called ?classic? as well since most of houses have it already build into kitchens, fireplaces, furniture, door and windows headers, columns and so on.4
Corner guard ? Used to protect the edge of the wall at an outside corner, or to cover a joint on an inside corner.
Cove molding or Coving ? a concave-profile molding that is used at the junction of an interior wall and ceiling
Crown molding ? a wide, sprung molding that is used at the junction of an interior wall and ceiling. General term for any molding at the top or "crowning" an architectural element.
Cyma ? molding of double curvature, combining the convex ovolo and concave cavetto. When the concave part is uppermost, it is called a cyma recta but if the convex portion is at the top, it is called a Cyma reversa ? The crowning molding at the entablature is of the cyma form, it is called a cymatium.
Dentils ? Small blocks spaced evenly along the bottom edge of the cornice
Drip cap ? this is placed over a door or window opening to prevent water from flowing under the siding or across the glass
Echinus ? Similar to the ovolo molding and found beneath the abacus of the Doric capital or decorated with the egg-and-dart pattern below the Ionic capital3
Egg-and-dart ? One of the most widely used classical moldings3 with egg shapes alternating with V-shapes and known from Ancient Greek temples (Erechtheion).
Also: Egg and tongue, egg and anchor, egg and star
Fillet ? small, flat band separating two surfaces, or between the flutes of a column
Fluting ? Vertical, half-round grooves cut into the surface of a column in regular intervals, each separated by a flat astragal. This ornament was used for all but the Tuscan order
Godroon or Gadroon ? Ornamental band with the appearance of beading or reeding, especially frequent in silverwork and molding. It comes from the Latin word Guttus, meaning flask. It is said to be derived from raised work on linen, applied in France to varieties of the, bead and reel, in which the bead is often carved with ornament. In England the term is constantly used by auctioneers to describe the raised convex decorations under the bowl of stone or terracotta vases. The godroons radiate from the vertical support of the vase and rise half-way up the bowl.
Also: Gadrooning, lobed decoration, (k)nukked decoration, thumb molding
Guilloché ? Interlocking curved bands in a repeating pattern often forming circles enriched with rosettes and found in Assyrian ornament, classical and Renaissance architecture.3
Keel molding ? with a sharp edge, resembling in cross-section the keel of a ship. It is common in the Early English and Decorated styles.
Ovolo ? Simple, convex quarter-round molding that can also be enriched with the egg-and-dart or other pattern
Picture rail ? Functional molding installed 7?9 feet above the floor from which framed pictures and paintings are hung using picture wire and picture rail hooks. Primarily seen in older homes with plaster walls, as hammering in nails to hang pictures would damage the plaster. Furthermore, the plaster may not be strong enough to support a picture.
Rosette ? Circular, floral decorative element found in Mesopotamian design and early Greek stele. Part of revival styles in architecture since the Renaissance.3
Scotia ? Concave molding with a lower edge projecting beyond the top and so used at the base of columns as a transition between two torus moldings with different diameters3
Screen molding ? this is a small molding that is used to hide the area where a screen is attached to the frame.
Shoe molding, toe molding or quarter-round ? often used at the bottom of the baseboard to cover a small gap or uneven edge between the flooring and the baseboard.
Strapwork - Popular in England in 16th & 17th. centuries, used in plaster on ceilings,5 also sculpted in stone on exterior of buildings, e.g. around entrance doors. Also carved in wood, and used for topiary designs for parterres. Imitates thick lengths of leather straps applied to a surface to produce pattern of ribs in connected circles, squares, scrolls, lozenges etc.
Torus ? Convex, semi-circular molding, larger than an astragal, often at the base of a column, which may be enriched with leaves or plaiting.6
Trim molding ? A general term used for moldings that are used to create added detail or cover up gaps. They can include corner moldings, cove moldings, rope moldings, quarter rounds, and accent moldings.7
In woodworking, a moulding plane
In woodworking, a moulding plane (molding plane in US spelling) is a specialised plane used for making the complex shapes found in wooden mouldings. 1
Traditionally, moulding planes were blocks of wear resistant hardwood, often beech or maple, which were worked to the shape of the intended moulding. The blade, or iron was likewise formed to the intended moulding profile and secured in the body of the plane with a wooden wedge. A traditional cabinetmakers shop might have many, perhaps hundreds, of moulding planes for the full range of work to be performed. The late nineteenth century brought modern types which were all-metal affairs such as the American Stanley No. 55 Universal Plane2 and the English Record No. 405 Multi-Plane with a wide variety of interchangeable cutters, integral fences, and "nickers", small cutting edges which score the grain fibers when working across the board.3
Large crown mouldings required planes of six or more inches in width, which demanded great strength to push and often had additional peg handles on the sides, allowing the craftsman's apprentice or other worker to pull the plane ahead of the master who guided it.4:132
Stanley No. 55 Universal plane with wide array of interchangeable cutters.
While generally considered outdated, a modern furniture shop doing reproduction or restoration work might keep a collection of moulding planes to match original work, or to build in an authentic manner.
The earliest known record of a moulding plane is a moulding plane iron of Roman origin unearthed in Cologne, Germany.4:116
In modern industry, the work of the moulding plane has been taken up by the electrically powered spindle moulder or wood shaper. On a smaller scale, the hand-held or table-mounted electric router allows the use of interchangeable router bits of a wide variety of profiles and is readily available to the small business or home craftsperson.