Gluing various parts becomes necessary in different situations; craftsmen have been choosing BF4 glue for this purpose for many years, which copes with the task of creating reliable and strong adhesion of various materials to each other at a high level. The adhesive solution has several varieties and is used in a variety of areas. A detailed description of BF glue and an explanation of why it is so popular will be given below.
Compound
Phenolic butyral is used for gluing metal, plastic, fabric and other types of materials. At the same time, the resulting seam is able to withstand various environmental factors, including chemical exposure. The seam is particularly durable and reliable. The seams are frost-resistant and elastic, with electrical insulating properties.
If you use it for gluing metal products, you also receive additional surface protection from rust formation.
The production of BF4 glue is carried out in accordance with GOST 12172 2016. The main component of BF glue is polyvinyl butyral or polyvinyl acetal. Digital marking indicates the quantitative percentage of the content of a given substance. It is responsible for the degree of elasticity of the seam formed. The level of adhesion strength depends on the bending index; the higher it is, the lower the strength. Other elements are also added to the composition: phenol-formaldehyde or phenol-polyvinyl acetate resin, ethyl alcohol, which serves as a solution diluent (it is possible to use chloroform or acetone instead).
Glue is a flammable substance, so it can only be used away from open sources of fire, in compliance with safety rules.
The color of the adhesive solution can be different, shades vary from yellow to red.
The main component of BF glue is polyvinyl butyral or polyvinyl acetal.
Epoxy adhesive
Epoxy resin adhesive, or simply epoxy glue, is a natural adhesive mass used for gluing metal, glass, ceramics, and wood. Most often used for filling holes or cracks, and also as a varnish coating.
Epoxy adhesive is a good electrical insulator and perfectly protects the treated surface from water or oils. It is a substance harmful to the human body. Therefore, it is recommended to use epoxy glue with special gloves, and if it gets on the skin or mucous membrane, wash it off with warm water, preferably with laundry soap. These features of epoxy glue make it impossible to use it in the food industry. Moreover, it is not even advisable to use epoxy glue in close proximity to food or drinking water.
Using epoxy glue is a rather difficult and time-consuming process. The adhesive solution is prepared immediately before use. Epoxy resin is mixed with a hardener in a ratio of usually 10 to 1. However, cases of other ratios are not uncommon.
The surfaces to be glued are cleaned of debris and dust in advance, and then epoxy glue is applied in a thin, even layer. Next, the surfaces should be compressed, and the excess formed after pressing should be removed. Excess epoxy adhesive can also be removed 4-5 hours after treatment.
Complete hardening of the epoxy adhesive solution at room temperature occurs 20 - 24 hours after surface treatment. If the surface treated with epoxy glue is located in a damp or cold room, the time for complete drying of the epoxy glue increases greatly. The strength of the connection can be increased by heating the treated surfaces to a temperature in the region of 90-100 ºС.
Applications and characteristics
The area of use of the adhesive composition is diverse; it is distinguished by its ability to connect ceramic, glass, plastic, metal, wood, leather and ebonite products. Resistance to vibration and bending effects of the seam, and to mechanical shocks is noted. High strength indicators make it possible to use it to glue different types of materials together.
Thus, BF4 is capable of gluing metal to non-metal.
It is used for household purposes and for a number of other areas. These include:
- Space sphere;
- Aircraft and shipbuilding;
- Paint and varnish industry, woodworking;
- When creating ceramic and glass products (cannot be used for items in contact with food);
- Medical field;
- For electronics, instrument making;
- Textile and chemical fields;
- Metallurgical and oil and gas fields.
The substance can be used even if operating conditions involve further exposure to alkalis and low temperatures. The ability of electrical insulation allows use when working with electrical appliances.
High strength indicators make it possible to use it to glue different types of materials together.
Summarize
The gel presented in this article is an effective drug for the treatment of minor skin lesions. It can be used in many cases and almost all people can use it, since there are very few contraindications for its use. These and many other qualities make it universal for healing light wounds. It is very easy to use in everyday life, but this does not prevent its widespread use, both in surgery and dentistry.
ON A NOTE! This is a kind of first aid that should be included in any first aid kit. There are many positive reviews about the mechanism of its action, and only its slightly peculiar smell causes criticism.
In addition, it is very easy to find in many pharmacies in the capital and other cities. Sold for about 30 rubles. Sold in a tube. In addition, you can order in specialized online stores.
Glue resistance to aggressive environments
Bf4 manifests itself as a connecting substance that does not react to the effects of alkalis, and it is also not afraid of low-temperature conditions. This allows it to be used for repair work with reagents. Repairs can be carried out at low temperatures, which expands its scope of application several times.
BF-4 manifests itself as a connecting substance that does not react to the influence of alkalis, and it is also not afraid of low-temperature conditions.
Side effects and overdose
This product may have some side effects, just like any medication. But most of these cases are individual, and side effects are very rare.
People who have used this substance and are allergic to one of its components may experience redness, itching and other manifestations of an allergic reaction in the areas where the gel is applied. That is why before use, it is necessary to fully study the instructions, indications for use and contraindications.
An overdose has never been recorded, but oral use can cause serious intoxication, in some cases leading to death. Store the tube in a home medicine cabinet, out of the reach of children.
RECOMMENDATION! It is recommended to consult a doctor to ensure that this medication is completely safe. It must be used strictly following the instructions in the instructions.
Specifications
To determine whether a product can cope with a certain task, you need to understand its technical characteristics. GOST glue pencil BF 4 determines its characteristics; during production they work in accordance with GOST 12172-74, the following characteristics of the glue are prescribed:
- The degree of viscosity is 30-60c;
- Dry residue is 10-13%;
- Maximum shear strength - 19.6 MPa (200 kgf/sq.cm);
- The permissible degree of bending of the adhesive seam, when it is completely dry, is no more than a millimeter;
- Average consumption – 150-200g/sq.m. m;
- The dried layer does not crack;
- Rust does not form on the metal in the area where the composition is applied.
The guarantee of maintaining the specified characteristics applies to work at temperatures from +20 degrees.
It is possible to use a hot gluing technique, this improves the strength of the connection. The seam itself does not lose its flammable properties.
It is possible to use a hot gluing technique, this improves the strength of the connection.
Operating instructions
The glue manual includes a preparatory step. Start by cleaning the parts to be glued. It is necessary to get rid of the remaining old glue, remove all types of contaminants, and if necessary, degrease the surface with a suitable product. You should also sand the parts to improve adhesion.
The gluing instruction can be carried out using two different methods:
- Hot technology;
- Cold technology.
When the first technology is selected, a layer of glue is applied to the surface of the parts, and they are left in this state for 60 minutes. Afterwards, the parts are compressed together, a high-temperature effect is created from +150 to +170 degrees, its duration should be forty minutes.
The cooling process should occur naturally; this stage should not be accelerated.
A layer of glue is applied to the surface of the parts, and they are left in this state for 60 minutes.
When working with textiles, the fabrics are wetted and wrung out, then they proceed to lubricating the gluing area with glue, and leave them for an hour. After this time, the pieces of fabric can be glued together; they should then be ironed with a heated iron. You can start using the product in 5-6 hours.
You can start using the product in 5-6 hours.
With the second method, the first layer is applied to the parts, wait 20-25 minutes, and the second layer is applied. Then you can attach the parts together. A firm squeeze is applied. To ensure that the adhesive layer dries completely, the product is not touched for about 24 hours. You should work in a heated room with good ventilation. The best tool to use is a brush.
If there is excess glue, it can be wiped off with alcohol; this must be done quickly so that the glue does not have time to dry. After 15-20 minutes, wipe the area a second time.
To ensure that the adhesive layer dries completely, the product is not touched for about 24 hours.
Glue BF-6 10g tube
Dosage form
Solution for external use [alcohol].
Composition per 100 g
Active substance:
Phenol-formaldehyde resin (bakelite varnish per dry substance) – 1.65 g
Excipients:
Polyvinyl butyral (polyvinyl butyral) – 9.7 g
Dibutyl phthalate – 3.5 g
Castor oil – 1.75 g
Rosin – 0.85 g
Ethyl alcohol 95% – 82.55 g
Description
Transparent or slightly cloudy liquid from light yellow to reddish color.
Pharmacotherapeutic group
Antiseptic.
ATX code
: D08AE.
Pharmacological properties
BF-6 glue has a wound-healing and antiseptic effect. It is used as an insulating agent and promotes the healing of small skin wounds due to the formation of an insulating film on their surface. The film is elastic and resistant to mechanical and chemical influences.
Indications for use
Hypersensitivity to the components of the drug, children under 1 year of age.
Use during pregnancy and breastfeeding
It is possible to use the drug.
Directions for use and doses
Externally. Before applying the drug, the skin area is thoroughly cleaned of contaminants. Use a cotton or gauze swab to stop the bleeding and dry the area to be covered with glue. The drug is applied in a thin, even layer directly to the damaged surface, covering the surrounding healthy tissue. If the integrity of the film is damaged, a new film is applied on top of it. The film forms within 2-5 minutes after applying the drug and is firmly held on the skin.
Overdose
With this method of application it is practically impossible.
Side effects
Burning at the site of application, allergic reactions.
Interactions with other drugs
No data.
special instructions
The use of the drug does not affect the performance of potentially hazardous activities that require special attention and quick reactions (driving vehicles, working with moving mechanisms).
Release form
Solution for external use [alcohol].
10 g in orange glass bottles, sealed with polyethylene stoppers and plastic screw caps.
10 g in aluminum tubes with polyethylene caps.
Each tube or bottle, along with instructions for use, is placed in a cardboard pack.
Storage conditions
In a place protected from light at a temperature not exceeding 25 oC, away from sources of heat and open flame. Keep out of the reach of children.
Best before date
4 years. Do not use after the expiration date.
Conditions for dispensing from pharmacies
Available without a prescription.
Safety precautions
The use of the adhesive solution is only possible away from open sources of fire, because the product is a flammable substance. The master must protect himself to avoid health problems. To do this, you should wear a respirator and work with protective gloves. Good ventilation is created in the room. Transportation of the product must be carried out in compliance with safety measures; the container must be tightly closed.
Good ventilation is created in the room.
How to remove glue
Work can often be accompanied by the composition getting into areas that should not have been glued together. It is permissible to remove the substance from the artist’s skin and clothing using alcohol. Double cleansing is necessary. After 20 minutes have passed after the first wipe, repeated cleaning is carried out.
If alcohol is not on hand, you can use vodka. It is possible to remove glue from fabrics using thinners, but they must be used carefully.
It is permissible to remove the substance from the artist’s skin and clothing using alcohol.
Drying time and film removal
The gel usually sets and transforms into a dense protective film in about 2-4 minutes. According to the instructions, it lasts 2-4 days on the skin. On the root of the treated tooth – at least a week. However, practice has proven that the product can be worn on the affected area for 7 days without any problems.
The effectiveness of the drug largely depends on how often the problematic area of the dermis comes into contact with water.
How to remove film
After applying the gel, a film remains. Once the crust of the damaged area is connected to it, it is no longer needed and can be removed. To remove this film, you can use one of the following steps.
- The first method is to use water, as it dissolves the product well. To remove the film, you just need to wash the damaged area with water and soap, making sure to wash your hands before doing this. Everything must be clean and sterile to prevent infection from entering the healing wound.
- The dry layer of film can be softened with hot water, and applying fresh glue over the old film will soften it and remove it without causing pain.
- Based on the fact that the glue contains ethyl alcohol, we can conclude that the film can be removed with an alcohol-containing liquid. To do this, you just need to wet the cotton wool in an alcohol solution and wipe its film. After this, the film can be easily wiped off.
- You can also use a cotton swab soaked in acetone (solvent composition 646, white spirit, etc.) rather than alcohol. In this case, you need to carefully apply the tampon to the film. But it should be remembered that this method is not suitable for people with particularly sensitive skin. Read also: what is white spirit used for?
HELPFUL ADVICE! After removing the film, it is necessary to determine whether the injured area needs to be re-treated with glue or not. To do this, you need to carefully examine this area, paying attention to some characteristics. If the wound has healed and blood is no longer oozing from it, then applying glue is no longer necessary. Otherwise, you should reapply the drug, not forgetting the instructions.
Possible analogues of this brand
It is difficult to find an analogue of adhesive solutions of the BF series. There are no such reliable and durable products on the market. Replacement is possible only with “Super Cement”, which is available in specialized stores.
Epoxy adhesives have similar characteristics, but they are much more difficult to work with. Therefore, BF4 has long remained the best tool for producing high-strength connections between materials of different types, which can be worked with in everyday conditions.
There are other adhesives with the abbreviation BF, which have different markings; they are suitable for different purposes, which are prescribed in the instructions. So there is a special medical glue that is used to “connect” abrasions and wounds.
Replacement is possible only with “Super Cement”, which is available in specialized stores.
Analogues of BF 4
BF 4 adhesive is considered a universal fixative that provides strong adhesion to various materials. In terms of resistance to aggressive environments and heat resistance, it is similar to BF 2 , but there are differences in use.
BF glue has no complete analogues in composition and technical characteristics. You can replace it with Supercement , which firmly and permanently adheres to any surface except metal. If you need to glue metal parts, it is recommended to use Supermoment .
Storage
Storage must be carried out taking into account the flammability of the substance. In the room where it will be stored, the temperature should not exceed +25 degrees, and there should also be no open sources of fire. Sudden changes in temperature are not acceptable.
The selected location must be out of reach of children; the adhesive container must be tightly closed to ensure sealed storage. The shelf life is 8 months from the date of manufacture of the adhesive solution at the factory.
In the room where it will be stored, the temperature should not exceed +25 degrees.
Bf4 series glue is an excellent option for gluing a variety of parts. Many people choose it because of its ease of use as well as the high level of durability it provides. This strength is due to its unique composition; it is produced in accordance with GOST. To date, no equivalent analogues of glue have been invented. And it has not lost its popularity for many years.
