Wallpaper adhesive or wallpaper paste is a specific adhesive, based on modified starch, methylcellulose, or clay [1] which is used to fix wallpaper to walls. [2]
Wallpaper pastes have a typical shear thinning viscosity and a high wet adhesive tack.[ citation needed ] These properties are needed to slow down the penetration of the adhesive into the paper and wall, and give slow bonding speed which gives the wallpaper hanger time to line up the wallpaper correctly on the wall. The adhesive is usually sold in pouches or boxes as flakes that are mixed with water to produce the paste. It is also available ready mixed in tubs.
The wallpaper adhesive is applied to the wallpaper to let the moisture of the adhesive soak into and penetrate the paper. The paper will thus expand before hanging rather than on the wall, which would cause vertical bubbles in each panel of wallpaper as the adhesive dried from the edges in. [3] When using a type of wallpaper paper that does not expand, such as nonwoven or fiberglass wallpaper, the adhesive is applied to the wall instead.
Adhesive, also known as glue, cement, mucilage, or paste, is any non-metallic substance applied to one or both surfaces of two separate items that binds them together and resists their separation.
Starch or amylum is a polymeric carbohydrate consisting of numerous glucose units joined by glycosidic bonds. This polysaccharide is produced by most green plants for energy storage. Worldwide, it is the most common carbohydrate in human diets, and is contained in large amounts in staple foods such as wheat, potatoes, maize (corn), rice, and cassava (manioc).
Paste is a term for any very thick viscous fluid. It may refer to:
Chine-collé or chine collé is a printmaking technique in which the image is transferred onto a surface that is bonded onto a heavier support in the printing process. One purpose is to allow the printmaker to print on a much more delicate surface, such as Japanese paper or linen, that pulls finer details off the plate. Another purpose is to provide a background colour behind the image that is different from the surrounding backing sheet.
Polyvinyl acetate (PVA, PVAc, poly(ethenyl ethanoate)), commonly known as wood glue (a term that may also refer to other types of glues), PVA glue, white glue, carpenter's glue, school glue, or Elmer's Glue in the US, is a widely available adhesive used for porous materials like wood, paper, and cloth. An aliphatic rubbery synthetic polymer with the formula (C4H6O2)n, it belongs to the polyvinyl ester family, with the general formula −[RCOOCHCH2]−. It is a type of thermoplastic.
Wallpaper is used in interior decoration to cover the interior walls of domestic and public buildings. It is usually sold in rolls and is applied onto a wall using wallpaper paste. Wallpapers can come plain as "lining paper" to help cover uneven surfaces and minor wall defects, "textured", plain with a regular repeating pattern design, or with a single non-repeating large design carried over a set of sheets.
Plaster is a building material used for the protective or decorative coating of walls and ceilings and for moulding and casting decorative elements. In English, "plaster" usually means a material used for the interiors of buildings, while "render" commonly refers to external applications. The term stucco refers to plasterwork that is worked in some way to produce relief decoration, rather than flat surfaces.
Papier-mâché, frequently written as paper mache, is a composite material consisting of paper pieces or pulp, sometimes reinforced with textiles, and bound with an adhesive, such as glue, starch, or wallpaper paste.
Wheatpaste is a gel or liquid adhesive made from wheat flour or starch and water. It has been used since antiquity for various arts and crafts such as bookbinding, découpage, collage, papier-mâché, and adhering paper posters and notices to walls.
Flocking is the process of depositing many small fiber particles onto a surface. It can also refer to the texture produced by the process, or to any material used primarily for its flocked surface. Flocking of an article can be performed for the purpose of increasing its value. It can also be performed for functional reasons including insulation, slip-or-grip friction, retention of a liquid film, and low reflectivity.
Rubber cement is an adhesive made from elastic polymers mixed in a solvent such as acetone, hexane, heptane or toluene to keep it fluid enough to be used. This makes it part of the class of drying adhesives: as the solvents quickly evaporate, the rubber solidifies, forming a strong yet flexible bond.
A paper bag is a bag made of paper, usually kraft paper. Paper bags can be made either with virgin or recycled fibres to meet customers' demands. Paper bags are commonly used as shopping carrier bags and for packaging of some consumer goods. They carry a wide range of products from groceries, glass bottles, clothing, books, toiletries, electronics and various other goods and can also function as means of transport in day-to-day activities.
Paste up is a method of creating or laying out publication pages that predates the use of the now-standard computerized page design desktop publishing programs. Completed, or camera-ready, pages are known as mechanicals or mechanical art. In the offset lithography process, the mechanicals would be photographed with a stat camera to create a same-size film negative for each printing plate required.
Exterior insulation and finish system (EIFS) is a general class of non-load bearing building cladding systems that provides exterior walls with an insulated, water-resistant, finished surface in an integrated composite material system.
Methyl cellulose is a compound derived from cellulose. It is sold under a variety of trade names and is used as a thickener and emulsifier in various food and cosmetic products, and also as a bulk-forming laxative. Like cellulose, it is not digestible, non-toxic, and not an allergen. In addition to culinary uses, it is used in arts and crafts such as papier-mâché and is often the main ingredient of wallpaper paste.
Joint compound is a white powder of primarily gypsum dust mixed with water to form a paste the consistency of cake frosting, which is spread onto drywall and sanded when dry to create a seamless base for paint on walls and ceilings.
Sealant is a substance used to block the passage of fluids through openings in materials, a type of mechanical seal. In building construction sealant is sometimes synonymous with caulk and also serve the purposes of blocking dust, sound and heat transmission. Sealants may be weak or strong, flexible or rigid, permanent or temporary. Sealants are not adhesives but some have adhesive qualities and are called adhesive-sealants or structural sealants.
Honeycomb structures are natural or man-made structures that have the geometry of a honeycomb to allow the minimization of the amount of used material to reach minimal weight and minimal material cost. The geometry of honeycomb structures can vary widely but the common feature of all such structures is an array of hollow cells formed between thin vertical walls. The cells are often columnar and hexagonal in shape. A honeycomb-shaped structure provides a material with minimal density and relative high out-of-plane compression properties and out-of-plane shear properties.
A wallpaper steamer is an electrical device which boils water continuously in order to produce steam. This steam is then allowed to pass through a narrow bore tube to a face plate. This face plate is then held against a wallpapered wall. The steam passes through the paper, saturates the backing paper and partially dissolves the desiccated wallpaper paste. This then allows the wallpaper to be pulled from, or scraped off the wall.
LED wallpaper is the integration of light-emitting diodes into flat substrates suitable to be applied to walls for interior decoration purposes.