PVA glue is an indispensable product, which first appeared on the market somewhere in 1914.It is used in every sphere of human life and still has no worthy analogues, because the technical characteristics of PVA glue impress with their indicators.
Contents
- Types of PVA adhesive
- Application of
- Technical characteristics of PVA adhesive
- Advantages of
- Disadvantages of
- How to use PVA glue correctly?
Types of glue PVA
95% adhesive PVA consists of polyvinyl acetate, which sometimes adds plasticizers, thickeners and various targeted additives. The composition of such a product usually depends on its purpose.
Today, there are several basic types of glue:
- OD .It is designed to fix paper and washable wallpaper on any type of surface;
- Universal .This type of glue is intended for gluing any kind of surfaces: wood, cardboard, paper, leather;
- Construction .High-quality building glue PVA is usually applied at installation of floor coverings, during facing of a ceramic tile and for fixing of various decorative elements;
- Stationery .This type of glue is used for gluing photos, paper and cardboard;
- Joiner .The composition of PVA glue for joinery purposes usually includes various additional substances, enhancing its properties and water resistance.
Application
The field of application of PVA glue is very wide. It is used almost daily in everyday life, at school, at work, at industrial enterprises and warehouses, in factories and offices, at construction sites and during repair work.
Technical characteristics of PVA adhesive
PVA glue is a universal tool that has tremendous performance:
- The low level of consumption, depending on the type of work, varies from 100 to 900 g / m2.As evidenced by feedback on the adhesive PVA, one bottle of such a product can last for a year, but, of course, everything will depend on the scale and type of work for which it will be used;
- Complete drying takes place after 24 hours;
- High adhesive capacity - 450 N / m;
- Flameproof;
- Explosion-proof;
- Non-toxicity;
- Elasticity( ie, when hardened, it does not become too brittle, so that it can fill gaps a few millimeters thick);
- Shelf life - from six months to one year;
- Frost resistance - more than four cycles.
Advantages of
The main advantages of PVA glue are its affordable cost, excellent technical characteristics and versatility. As already noted above, this product can be easily applied for absolutely any surfaces! In addition, such glue is fireproof, so it can easily be used in any premises and for any materials.
Disadvantages of
The main disadvantages of PVA glue are low water resistance and long drying time. However, such deficiencies are now eliminated with the help of special additives.
How to properly use PVA glue?
So that you can fully appreciate all the advantages of this product, it must be properly selected. The PVA glue must have a dense structure, a white color and a homogeneous mass. You can see the photo and video of the PVA glue in this article! We also need to remember that high-quality goods can not be worth a penny.
Having chosen a good glue, do not rush to use it, because it is very carefully to prepare the surface. The working surface must be completely free of dirt and dust. If the surface has a porous and uneven structure, then it must be carefully treated with a primer or sandpaper.
Before application, the glue should be shaken with a brush. It is applied very thinly, and then the surfaces are carefully pressed against each other. As already noted, the time for complete drying is 24 hours, so for a good result the surface should not be touched during the day.
