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Expanded-polystyrene

ceiling tiles and coving can be glued to plaster and plasterboard surfaces using a synthetic latex-base ‘non-flamm’ adhesive. These adhesives have gap-filling properties that allow the material to be fixed effectively to rough or uneven surfaces. They also allow some degree of movement so that the tiles can be adjusted after they have been stuck in place.

How to Fix Ceramic Tiles

Ceramic wall tiles are normally fixed with adhesive that is available in powder form and ready-mixed solution. some adhesive are multi-purpose, use as adhesive or grout.

Ordinary ‘thin-bed’ adhesives are for tiling on fairly flat surfaces; there are ‘tic-bed’ ones available for use on rough and uneven surfaces. Use a water-resistant version for kitchens and bathrooms. Epoxy-based grouts resist mould growth and help keep kitchens and bathrooms germ-free. Ceramic floor tiles are usually laid with a cement-based tile adhesive. Thick quarry tiles are sometimes laid on a sand-and-cement mortar – to which a special builder’s adhesive, PVA bonding agent, can be added to improve adhesion (a method also used for repairing sand-and-cement renderings and concrete).

How To Glue Metals

Metals can be glued with epoxy-resin adhesives. which produce a powerful bond. The adhesives come in two parts, a resin and a hardener, supplied in separate tubes or a special twin dispenser. Both parts are mixed together, then used within a prescribed time after mixing.

Cyanoacrylates

The cyanoacrylates, or ‘superglues’, come close to being universal adhesives that will stick anything. They rapidly bond a great many materials, including human skin – so take great care when handling them (see adhesive solvents, labels, or search online. Usually supplied in tubes with fine nozzles, super glues must be used sparingly. Most are thin liquids, but a gel type is also available. They are commonly used for joining small objects made of metal, glass, ceramic, glass fibre or rigid plastic.

Using Acrylic Polymer Adhesive

This is a solvent-free adhesive, sold in cartridges, which is used in place of mechanical fixings, such as nails and screws, to secure wooden mouldings and boards.

Polyurethane-foam adhesive

Available in pressurized cans, this glue is used for fast and clean application when bonding a range of building materials such as ceiling tiles to masonry, plaster, man-made boards or stone. Some expand rapidly for use as gap fillers.

Glue Guns

An electric ‘hot-melt’ glue gun is loaded with a rod of solid glue that melts under heat; the glue is then discharged as a liquid when the gun is activated onto whatever it is you are fixing. The components are pressed or clamped together and the glue bonds as it cools. glue guns are useful for accurate spot-gluing or where you have to get the adhesive into an awkward, fiddly spot. There is a choice of glue rods for use with various materials. The glues are able to cool and set within 20 to 90 seconds. Cold gun-applied adhesive for fixing wallboards and ceiling tiles is supplied in cartridges fitted with nozzles. When you squeeze the gun’s trigger, a ram pushes on the base of the cartridge and forces out the glue.

Adhesive Solvents

When using an adhesive, you will inevitably end up putting some of it where you don’t want it. So have the right solvent handy for the glue in question and use it promptly. The more the glue has set, the harder it is to remove; and once the glue has set hard, it may be impossible to dissolve it. The table below show which solvent to use for which type of adhesive.

ADHESIVE

SOLVENT

P.V.A

Woodworking Glue, Synthetic-resin

 

Rubber-based Contact Glue

Water

Water

 

Acetone

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