Varieties of adhesives of the brand BF and their features

Adhesives are essential to many different industries, including crafting and construction. The BF brand is distinguished from other adhesive types by its dependability and versatility. These adhesives are excellent for a variety of applications because of their strong bonding qualities.

The BF adhesives are available in multiple varieties, each designed to fulfill distinct requirements. There is a BF adhesive made for the task, regardless of your needs—it can endure high temperatures, withstand moisture, or offer flexibility. Selecting the best type for your project can be aided by being aware of the various varieties and their characteristics.

The longevity of BF adhesives is one of their distinguishing qualities. They are designed to offer durable bonds, guaranteeing that your materials will remain firmly affixed. Moreover, these adhesives are simple to use, making them suitable for both professional and do-it-yourself applications.

Every type of BF adhesive has distinct qualities that set it apart for use in specific situations. Some are better suited for bonding metal, while others are more effective when used with plastic or wood. Understanding these differences will help you finish your projects quickly and effectively by saving you time and effort.

We will examine the various BF adhesive kinds in this post, emphasizing their unique qualities and ideal applications. You can make the best decisions and complete your work with the greatest results if you are aware of these details.

The BF brand provides a selection of adhesives, each designed to satisfy particular requirements in a variety of sectors. These adhesives have a reputation for being long-lasting, strong bonding agents, and resistant to heat and moisture. From BF-2, which works great for joining metals and ceramics, to BF-6, which performs well in high-temperature settings, each type has special qualities that make it appropriate for a range of uses. Users can choose the best adhesive for their projects and ensure maximum performance and longevity by being aware of these features.

Compound

Different series may have different compositions. Every type of BF glue is made in compliance with GOST 12172-74.

Polyvinyl acetate or polyvinyl Butiral is the primary ingredient. The concentration of the material determines its elasticity. The percentage of the primary component in dry form is indicated by the figure next to the acronym "BF." Each series has a different quantity of these components. The strength of a dried glue layer decreases as their concentration rises, but their elasticity does.

Resins (phenol-formaldehyde, phenolivinyl acetate) and solvent are additional ingredients. Typically, acetone, chloroform, or ethanol are added as a solvent. The only substance added for medical purposes is alcohol.

Each mixture is an example of a thick solution. A color shift from yellow to brown is possible. Every compound is non-flammable.

Areas and characteristics

Every brand has unique technical features and application ranges. It is not advised to glue objects in contact with food or drinking water because the majority contain several toxic components.

BF-2

Used as glue for sturdy, long-lasting objects that remain stationary while in use. Adheres to surfaces made of plastic, ceramics, metal, wood, glass, or marble. Speakers, microphones, and other acoustic equipment are repaired by radio amateurs. When doing restoration work, materials are impregnated with varnish.

High temperatures are required for the composition to polymerize; as a result, a seam with low elasticity that is resistant to heating to +180 ° C is formed. It is still resistant to the effects of acidic media at temperatures between 60 and 80 °C.

• viscosity at T +20 ° C-30-60 C (measurements are carried out by a viscometer B3-1);
• The content of the dry residue is 14-17%;
• The limit value of the strength of the connection checked for the shift is 19.6 MPa (kgf/sq.cm) at t +20 ° C;
• The bend of the adhesive layer after solidification is 3 mm.

The product’s viscosity may rise if it is kept in a cold environment. It is required to pre-hold glue for three days at room temperature before using it. The composition’s usage instructions state that it is resistant to water, mold, acid media, oils, and oil products. Acetone and alkaline media exhibit moderate stability when exposed to alcohol.

BF-4

Intended to be used for the adhesive application of skin, glass, metal, wood, and other materials; details include bending and vibration. Parts made of copper, steel, aluminum-magnesium alloys, and fiberglass can be glued with confidence. securely joins non-metallic materials with metals.

BF-4 can be used at lower temperatures and is resistant to alkaline media. possesses the ability to insulate current and is resistant to salt fog.

• viscosity at T +20 ° C-30-60 C (measurements with a viscometer B3-1);
• The content of the dry residue is 10-17%;
• The limit value of the strength of the connection checked for the shift is 19.6 MPa (kgf/sq.cm) at t +20 ° C;
• The bend of the adhesive layer after solidification is 1 mm.

When a seam is allowed to harden between 160 and 175 °C, it will become the most durable. The seam will start to weaken if the hot polymerization temperature rises above 175 °C. The indicator can be decreased by making several strokes on the glued plane.

BF-2N and BF-4N

It is recommended to use this when adhering ferrous metal components. After surfaces have completely dried, they can be used at a temperature of at least -60 °C and no more than +80 °C.

• viscosity at T +20 ° C-30-60 C;
• The content of the dry residue is 14-17%;
• The limit value of the strength of the connection checked for the shift is 19.6 MPa (kgf/sq.cm) with t =+20 ° C.

BF-88

Metal glue gun with non-metal foundations. Wood, glass, leather, plastic, and other synthetic materials can all be glued. This composition is versatile enough to be used for both routine tasks and repairs.

The composition consists of phenol-formaldehyde resin, nephras, ethyl acetate, and chloroprene rubber. There might be a precipitate in the thick mass. Adhesive is beige or gray-green in color. is available in tubes; however, it is sold in 25–50 liter containers for industrial use.

BF-19

Glass, ceramic bases, metals, and wood can all be glued (the hot glue method is used). The cold method links rubber, plastic, and cardboard with fabric and paper. Ironing fabric surfaces is acceptable when applying glue.

It is not permitted to use this highly toxic agent for medical purposes or to glue dishes.

Acetone can be used to dissolve the BF 19 glue if needed.

BF-6

Medical glue BF-6 is based on polyvinylButiral, which disinfects and speeds up skin healing while shielding the wound from microbial invasion. leaves the skin with a protective layer after application. has a medium viscosity liquid consistency. Colors range from red to a murky yellow. Minimal plasticizer and rosin are additional ingredients.

It can be applied to treatment:

• cuts, deep scratches;
• abrasion, microtrauma, for healing small burns;
• Surgeons are used after minimally invasive surgical interventions, for example, after removing warts, papillomas;
• glue replaces the patching of seams, after it there are no scars;
• Dentists isolating root canals from the ingress of decay products during surgical treatment of teeth.

Acne and acne are helped to disappear by the composition. reduces inflammation and stops bacteria from growing within the formation. Applying the product to the skin defect should be done at night.

Every ingredient is safe for skin contact.

Allergies should be used with caution because some people have allergies to glue. For infants under one year old, it is strictly forbidden. Use honey to heal purulent wounds and deep cuts. It’s impossible to glue BF. You have to get medical attention in these situations.

It is used for more than just medical purposes; it can also be used to repair clothing, upholstered furniture, curtains, and parachute seals.

Instructions for use

Adhesive must be used per the directions. The glue and material combinations that the glued parts are made of will determine the application technique.

Dense materials undergo pre-rummaging, dusting, and degreasing. If the glue comes in two parts, mix the two parts according to the ratios listed on the package.

Instructions for the hot gluing method

• The even layer of the mixture is applied to glued materials;
• The composition dries for an hour, if used by BF-4, for the BF-2 you need to wait 10 minutes. and apply another layer;
• The processed parts are connected and crushed to each other;
• They are placed in conditions of elevated temperature in the furnace: for BF-4 (+150 …+170 ° C) for 40 minutes., for BF-2 (+130 …+140 ° C) for 60 minutes.;
• The part is gradually cooling to the ambient temperature.

Tissues must be wet with water, squeezed, and allowed to dry for an hour before being adhered to. After that, fabric pieces are joined and glue-coated. An iron must be used to iron the tops of them. After at least five hours, when the glue seam has finally dried, you can use the glued items.

Cold way

A mixture must be applied to one part and allowed to sit for 20 minutes. Next, apply the second layer, connect to the second surface after a few minutes of waiting. The part must not be used before one day.

The item should be dried in a room with good ventilation the entire time.

Application of honey. glue

The steps to take when dealing with minor cuts and abrasions are as follows:

• Stop blood with gauze or cotton, cleanse the skin around the injured area, wait until it dries a little;
• A thin film is poured glue on a wound surface with entry into intact areas;
• If the integrity of the resulting protective film is disturbed, another layer of the mixture is applied over it.

In dental practice, the dentist cleans the tooth root’s infectious foci first, stops the bleeding at the same time, and then carefully places glue on the tooth root. The wound has dried after a few minutes, and after five. A thin film forms on the tooth’s surface as the layer totally freezes, and it lasts for roughly a week.

How to remove glue glue

Vodka or alcohol both work well for glue removal. It is necessary to try again if the remedy was not wiped the first time.

A cotton pad soaked in the solvent can be used to clean the fabric if he happened to strike it.

It is important to test the solvent in a small area on the incorrect side of the fabric before using it to make sure it does not leave any subclasses or discolor the fabric.

Adhesive Variety	Features
BF-2	High water resistance, suitable for metal and wood bonding.
BF-4	Flexible, strong bond for leather and rubber materials.
BF-6	Heat-resistant, ideal for applications with high temperatures.
BF-88	Quick-drying, excellent for fast repairs and assembly.

A wide variety of adhesives, each with special qualities suited to particular uses, are available under the BF brand. These adhesives are a popular choice in many industries because of their strong bonding abilities, flexibility, and resistance to various environmental factors.

BF adhesives are available in various formulations, each tailored to specific requirements. Because of their heat resistance, certain varieties are perfect for usage in hot conditions. Some are made to set quickly, making them ideal for jobs that need to be applied quickly and bonded right away.

The adaptability of BF adhesives is another noteworthy quality. They are capable of joining a variety of materials, such as ceramics, polymers, and metals. Due to the fact that diverse material bonding is frequently needed, they are therefore extremely helpful in both industrial settings and routine repair tasks.

All things considered, the range of BF adhesives guarantees that there is a good choice for practically every adhesive requirement. BF adhesives ensure successful and long-lasting projects, whether you are working on a small DIY project or a large-scale industrial application. They offer dependable performance and durable bonds.

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