Glue has become a companion of human life for a very long time. The first glue, according to archaeologists, appeared 9.5 thousand years BC. It was made from various components of animal origin. Bones and tendons, fish scales and natural resins were the main components of the adhesive mass. Stationery glue has become the most common, as it is used by the population from young to old.
Creating glue
The brew from natural materials and animal waste was used by our ancestors until the 20th century.
When science began to develop rapidly, people's knowledge of the quality and properties of materials and substances expanded, and artificial components began to appear to create glue. The first who received a patent for the invented glue was the chemist Leo Baekeland. This happened in 1901. And in 1909, according to his patents, phenol-formaldehyde adhesives with electrical conductivity began to be mass-produced. Stationery glue appeared in the late thirties - early 40syears of the last century.
Now high-tech equipment is used for the production of glue. The process is becoming more and more automated. The modern factory can carry out the complete process, from the production of the bottle to the labeling of the bottle.
Modern market
The chemical industry produces more than 100 million packs of stationery adhesive every year.
Sales turnover for the year is estimated at at least $10 million. Manufacturers say that the demand for stationery glue is not growing, but is at a stable level. The form in which the product is promoted is changing. There are new types of pencils, stickers and tapes with high adhesive characteristics. The highest quality products are produced by such countries: South Korea, Russia, Malaysia and Germany.
Appointment of glue
The main purpose of any adhesive is to connect two surfaces. All of them differ in their composition and purpose. They have a different smell, color, they are drying and non-drying. Stationery glue is used for gluing paper of various densities and cardboard. It can also be used for domestic purposes.
Characteristics of clerical glue:
- Drying.
- Frost resistant.
- Transparent or white.
- Can be liquid or solid.
The manufacturer must obtain a quality certificate for stationery glue. The composition is tested for toxicity and compliance with environmental requirements.
Types of stationery glue
Liquid type glue happens: silicate and PVA clerical glue.
The characteristic of silicate glue allows it to be used also in everyday life. The second name is liquid glass. It is used in the national economy. It is not convenient for working with paper, it spreads a lot. It has been used less frequently in recent decades.
PVA stationery glue glues paper, cardboard, photographic paper without difficulty. There is still demand for it, it is more viscous, which allows you to control its spreading during application.
Composition of clerical glue
Silicate stationery adhesive, the composition of which determined its name, is now used more in construction. Its main components are silicate, lithium, sodium and potassium polysilicates. It happens only in liquid form.
Stationery glue PVA has a decoding: polyvinyl acetate. It is an aqueous solution of this substance with the addition of a plasticizer and modifying additives. In addition, there is a solid clerical glue. Its composition may differ in the main substance. It can be polyvinyl acetate (PVA) or polyvinylpyrrolidone (PVP). PVA glue can be of several brands that determine its strength:
1. universal;
2. super or extra.
First stamp required for stationery use. Super or extra can be used in furniture and construction.
Shapes of packages
Stationery glue is sold in various forms of packaging. Liquid glue is packaged in bottles of different sizes. Mainthe difference is the shape of the tube and cap.
Super - the cap is a narrow, elongated, screw cap. Glue is applied to the surface using this cap.
Cap - a brush is used more often in bottles with silicate glue.
It is convenient to use for liquid consistency glue.
Cap - a duck resembles a super-cap, only larger, has a wider opening.
Glue - stationery pencil is now the most common option. It is the most convenient to use. Easy to apply, does not run, economical, has excellent adhesive properties.
Spray glue is a new type of stationery adhesive that also helps bond wood, foam and metal.
Using stationery glue in everyday life
People have found many more ways to use stationery glue. Technical characteristics allow it to be widely used in everyday life. Let's consider further how you can still use silicate glue or PVA glue.
Silicate glue or liquid glass is a substance that is used in construction. The main purpose of use is waterproofing.
Options for using silicate glue.
- Added to facade paint. Gives durability.
- Treatment of walls and floors in the bathroom for sealing.
- Used for waterproofing foundations.
- Added to cements and concretes, getting new brands of solutions.
- Used to make a special putty used to coat water pipes.
- Impregnated fabrics will become durable protective materials.
- Gardeners treat tree and shrub trimmings to protect against harmful bacteria.
- They cover surfaces that need to be protected from ultraviolet radiation.
- Used for washing dirty dishes and pans.
Recipe for removing carbon deposits from pans using silicate glue.
Our grandmothers and great-grandmothers used this method. It is necessary to take a metal basin or a large pan. Pour one tube of silicate glue into it. Put all the pans and lids in there. Put this container on fire and boil. Miraculously, all soot comes off the dishes. Afterwards, rinse all dishes thoroughly under running water. There is a similar recipe with the addition of laundry soap and soda ash.
PVA glue is also well known to builders and furniture makers.
Options for using PVA glue.
- Used in furniture assembly.
- Gets the carpet to the floor well.
- Reliable when attaching linoleum.
- Used for gluing tiles.
- Useful for wallpapering.
- Added to primer and putty, water-based paint.
PVA glue has gained popularity due to its non-toxicity, fire safety, high adhesive power and ease of use. They canglue paper, leather, glass, fabric, plastic, metal.
