Our industry lets out also the glues ready to the immediate use which are not demanding heating and dissolution. They will be useful at home to everyone umeltsu, including to the joiner. Appeal of synthetic glues consists not only in their relative universality. They are issued in small packaging - from 40 to 100г, are inexpensive, packing in tubas or glass bottles protects glue from premature zagustevanija and drying.
It is a lot of Synthetic gluing structures, annually there are all new and new names. We will familiarise with the most used in a life.
Universal glue БФ-2 is intended for pasting of products from a tree, some plastic, faience, glass, ceramics, metal. It represents dense enough transparent liquid of usually light yellow colour. Its application differs from a way of application bone and kazeinovogo glues a little. The matter is that sufficient durability of pasting is reached only at warming up of stuck together products to 100-120 ° or at long endurance in a cold condition. But even week drying in zapressovannom a condition does not give such result, as drying with heating. From these reasons glue БФ-2 least approaches for a tree, especially for those connections which keep on one I glue. .
It is better to use it for pasting of other materials, for example ceramics, porcelain or heat-resistant plastic. Preliminary stuck together surfaces clear of a dust and fat traces, washing out their hot water with soda, gasoline, then dry. On pure surfaces a brush or a wooden stick apply a thin film gluing and allow to it to dry up, that it has ceased to be sticky. Then on both surfaces put the second layer of glue and too slightly dry. After that details impose against each other, densely press and fasten a clamp, in vajme, a vice, it is possible to pull together figured products with a cord, a piece of a matter, a band.
The products Stuck together thus put in metal ware, fill in with water, put on fire and lead up to the boiling proceeding not less 2-3ч. After that ware remove from fire, allow to cool down slowly, take out products and dry on air. Large subjects can be warmed up in ovens, over an electric tile so that the temperature of stuck together surfaces was not more low 100 °. At more heat warming up term can be reduced about one hour.
Structure BF-2 does not recommend to stick together the subjects intended for cooking.
On sale there is an office silicate glue. This liquid glass. It can be useful to the joiner at manufacturing, for example, colour stained-glass windows for fixtures, other hand-made articles with application of glass, ceramics, and also pastes for shpaklevanija. SHpaklevka on the basis of liquid glass it is enough ogneuporna and well resists to moisture action. .
Glue БФ-6 is a dense light brown liquid. It perfectly sticks together a matter. The way of application is simple. Pieces of a fabric subject to connection moisten with warm water, well wring out, a wooden stick or a knife put thin layers of glue twice, allowing each time to them to dry up to such degree that the finger did not stick to a matter. At podsyhanii the light film is formed. Then fabric pieces impose one on another, cover with a damp fabric and iron a hot iron short passes before full evaporation of a moisture. After cooling to a room temperature the stuck together place gets sufficient durability sklejki and is not afraid even of washing.
БФ-6 it is familiar to many mistresses, it apply mainly at clothes repair. However not for all its medical advantages are known. On the structure Bf-6-eto spirit the solution of synthetic pitch perniciously operating on pathogenic microbes. Its thin layer imposed on small ranku, through 2 mines will dry up, forming a transparent film, will protect a wound from pollution and by that will replace a bandage. The film will keep two-three days then operation can be repeated. To the joiner dealing with very sharp tool, it is necessary to have always near at hand flakonchik this glue, there is it cheaply, and long time is stored.
This glue is simply necessary for the joiner and for direct use to destination, for example at manufacturing and upholstered furniture repair. Recently the industry lets out the universal glues recommended almost for all materials: a tree, metal, a paper, rubber, a skin, firm plastics, felt, glass, ceramics. The such concerns, for example, "¦юьхэ=-1".
Experience shows that durability of pasting of a tree such universal structures slightly more low, than at traditional joiner's glues. Besides some synthetic glues possess strong getting ability, therefore their use in decorative veneering is limited and admissible only after preliminary check.
But such glues are irreplaceable for incrustation on a tree with application of a brass, bronze, nacre, ceramics, metals and other materials. .
There are also purely vegetative glues. On trunks of a cherry tree, plum it is possible to see the liquid or already fallen asleep drops and almost transparent flows of pitch. These very good raw materials for glue preparation. The pitch which has been removed from a tree, it is necessary to dry up, pound well in a powder and to dissolve 1 part of pitch in 2-3 parts of water. Glue quickly dries, to store it follows in densely closed bottle. Glue can be applied at manufacturing of small hand-made articles from a tree, a cardboard, a hardboard, plywood.
Durability of pasting of wood is easy for checking up by practical consideration. Observing all rules, applying quite konditsionnyj structure of joiner's glue, stick together two brusochka. After drying within days them vertically put on a workbench, establish any cutter precisely in the area of connection and hammer blow split. If split is necessary exactly on a seam sklejki it is possible to consider quality bad. Usually the split line does not coincide with a seam, on both surfaces there are the live fibres of the wood which has been pulled out by force of blow. So joiners check both quality of glue, and the skill. .
Durability of pasting of wood is influenced by many factors, including temperature and humidity of air in a working premise.
Surface preparation has Great value. It should be equal so that one plane adjoined to another without gleams. Surfaces polluted, with oil and fatty stains, resinous badly stick together. Many cabinet makers prefer rough surfaces smooth, for this purpose them process a special plane - tsinubelem which leaves superficial scratches on wood. This way of preparation is expedient only for wood of firm breeds.
Is almost useless to try strongly to stick together crude wood. Durability decreases and in the event that humidity exceeds it 12%. Thin plates, laths, rejki it is better to stick together at once after planing that warns possible koroblenie preparations, after all the plane removes the dried most up, superficial part of wood, opening more damp layers. Drying up after planing, they will cause koroblenie.
The Best results are given by pasting of slightly warmed-up tree and warm glue. As a rule, glue is put on one surface by an equal thin layer that under it the wood structure on all surface was well visible. .
Joiners often should do hollow boards, to paste over frameworks with plywood from one of two parties. But sometimes internal borders of a framework become appreciable on an obverse surface, plywood on edges bruskov sags, even if its thickness makes 5-6 mm. To warn this phenomenon, it is not necessary to smear with glue all plast bruska from an edge to an edge, the glutinous layer should not reach internal edges bruskov on 10 mm then internal borders bruskov will not be appreciable. Durability sklejki from it is not becomes weaker.