Currently, PVA glue is the most universal type of glue, widely in demand in many areas. It is used by both schoolchildren at labor lessons and professional masons for laying ceramic tiles. The high popularity of this material is explained by the simplicity and ease of use, the absence of toxic emissions and an affordable price.
The traditional PVA glue is a homogeneous, rather viscous substance of white color, characterized by a high degree of strength (when glued) and good frost resistance.
Modern industry produces several varieties of this product, which vary in composition and belonging to the class of loads, according to the standard of water resistance. The choice of one or another adhesive substance directly depends on the area of use and the specific characteristics of the materials that will be glued. The final result largely depends on this.
Universal PVA glue has such technical characteristics as an adhesive ability of 400-450 N / m, low consumption, varying from one hundred to nine hundred grams per square meter (depending on the type of work), high frost resistance, more than four cycles .
In addition, it is worth noting the period of complete drying, usually not exceeding twenty-four hours, and a rather long shelf life is six to seven months.
Today, PVA glue is used in a wide variety of fields. It is used when laying ceramic tiles, and when covering walls with wallpaper, and even as a mandatory additive in glass production.
Office glue, the least toxic of all other types, is used to glue paper, cardboard or photographs. Joiner, with high water resistance and good grip, is used when working with a variety of furniture. Clay "Moment", characterized by a minimum pressing time, is used when laying laminate and parquet. In addition, there is a special PVA glue for wood and leather products. Such a product is also an essential component for primers and putties.
There is also a glue specifically designed for facing with ceramic tiles and working with floor coverings, PVA homopolymer glue used in the production of building materials, as well as in the textile and porcelain industries. The latter is characterized by maximum gripping power.
Ecological cleanliness, safety and affordable price make any of the listed types of material a very useful acquisition. This, by the way, explains one of the reasons for its so high popularity. On its basis, they even produce “smart plasticine” - a special children's toy that can change its state and take absolutely any form.
An obvious advantage over other similar compositions is the main factor that today manufacturers are striving to improve the formulation of PVA glue, and not to come up with new adhesives.