Glue for aluminum: how to glue aluminum to aluminum, to plastic at home

Aluminum is a lightweight metal with a special coating. It resists the effects of the external environment, but has low adhesion to other materials. To glue such surfaces or aluminum to other planes, you need a special glue for aluminum. It is this that destroys the coating and ensures reliable bonding.

Types of glue

There are two common types of glue for aluminum joints: polyurethane and epoxy resin.

The first type is:

One-component, containing polyurethane polymer, without solvents. Open parts of parts are treated with such substances. The plane is pre-moistened, which promotes the activation of aluminum-coated components.
Two-component, containing a hardener. No pre-wetting is required. The compound resists the effects of oily substances, the formation and spread of fungus and mold, has increased flexibility, and is resistant to temperature changes. It is used when gluing elements of aluminum structures or aluminum to other surfaces. If the quality of gluing is in doubt, then mechanical fastening is carried out in parallel.

Any two-component product is mixed with a hardener before application. The ratio is shown on the packaging.

According to the method of hardening they are divided into:

Hot solidification - applicable in industry, solidification occurs by raising the temperature to 1000 degrees.
Cold hardening occurs at temperatures of 15–350 degrees.

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What to glue with?

Tightly aluminum is connected to aluminum using the following mixtures:

Mastix. High-quality gluing is possible at temperatures ranging from -50 to +145 degrees. Connects ferrous and non-ferrous metals. Also used as a sealant. To become the owner of a 50-gram bottle, you will have to shell out 30 rubles.

Cosmopur 819. Polyurethane based mixture. Using this product, gaps are eliminated and corners are glued. The price of a tube with 300 ml of glue is 500 rubles.
Astrohim ACE-9305. Used in the same temperature range as Mastix. With the help of this substance, broken fragments are restored in parts. For example, carving. The glue costs more: 80 rubles.
"Epoxy Metal Moment". It is a two-component adhesive that is used to connect aluminum, wood, marble and glass surfaces to each other. This product is also used to eliminate various gaps and cracks. A 0.05-liter package costs 350 rubles.
Abro Steel. This product is used in cases where it is necessary to repair sanitary equipment or tanks in which liquid is stored. Judging by the reviews, the glue is very sensitive to the cleanliness of the surfaces being joined. A 57-gram package costs 150 rubles.
Permatex Cold Weld. This two-component heat-resistant adhesive, which is based on epoxy resin, has fire-fighting properties. The product is resistant to long-term (not higher than 149 degrees) and short-term (up to 177) heating. Polymerization takes no more than 15 minutes. The price of a 56-gram package is 300 rubles.

Characteristics of popular brands

Aluminum is joined using the following adhesives:

Mastix provides reliable adhesion at temperatures of -50 – +145 degrees. Bonds non-ferrous and ferrous metals. Can be used as a sealing agent.
Cosmo PU-200 is a two-component solvent-free product. The compound is heat resistant and can be painted after complete hardening. It is capable of fastening aluminum, gypsum fiber boards, wood, plastic, laminate. It is used to renew seams up to 8 mm wide.
Cosmopur 819 is a polyurethane mixture capable of eliminating gaps, used for fastening corners.
Wurth Liquid Metal is an adhesive with a cyanoacrylate composition. Bonds aluminum to aluminum. Provides quick setting and drying. Suitable for transparent products. Recommended by experts.
Astrohim ACE 9305. Adhesion at temperatures -50 – +145 degrees. Used to connect faulty structural elements.
Titanium is a common composition. The seam can withstand mechanical loads and vibrations.
Permatex Cold Weld is a heat-resistant, two-component composition. Made on the basis of epoxy resin, it has fire-fighting properties. Withstands heating up to 150 degrees; for a short period of time, raising the temperature to 177 degrees is permissible. Polymerizes in 15 minutes.
Epoxy Moment metal is a two-component adhesive. Can glue aluminum or other surfaces (wood, marble, glass). Eliminates cracks and gaps.
Abro Steel for the repair of liquid tanks, sanitary equipment. Before use, thoroughly clean the surfaces.

Characteristics of glue from popular manufacturers

Today, there are many different compositions that help to firmly glue a metal such as aluminum to each other or to other materials for a long time.

The most popular of them are the following:

“Mastix” - this glue is used not only to glue aluminum, but also to seal joints. In addition, it is also used to work with various ferrous and non-ferrous metals. The chemical composition of this substance allows it to work at low and low temperatures. The optimal temperature for operation is from -50 °C to +145 °C. Another remarkable quality of this product is its work with a wet surface. Considering all the advantages, the cost of a 50 gram tube is no more than 30 rubles.
“Cosmopur 819” - this substance creates a viscous seam that simply connects aluminum to each other. It is often used to eliminate gaps, as well as when gluing aluminum corners. This product is often used for durable bonding of parts in various metal structures. The approximate price for a 300 ml bottle is 500 rubles.
“ASTROhim ACE-9305” - with the help of this cold welding, you can instantly eliminate various types of breakdowns. This mixture firmly connects aluminum metal surfaces to each other at temperatures from -50 °C to +145 °C. It is often used to repair missing fragments, for example, in case of thread violations. The cost of one package of this product does not exceed 80 rubles.

“Epoxy Metal Moment” - this product firmly connects not only aluminum surfaces to each other, but also various types of materials. It allows you to combine metal with marble, wood or stone. In addition to the above, this product perfectly removes gaps and cracks of various kinds. The estimated cost for a 50 ml package is approximately 350 rubles.
"Abro Steel" is a cold welding produced by an American company. It is often used in the repair of household sanitary equipment due to the fact that it creates excellent tightness. With this product you can glue various materials, regardless of their type. It is worth noting that before work it is necessary to thoroughly clean the surface to be bonded. We recommend that you read the review on how to use cold welding for metal. You also need to be responsible when storing this mixture. If mishandled, this product will become unusable. Price for 57 g, about 150 rubles.
“PERMATEX Cold Weld” is a two-component adhesive based on epoxy. This allows it to harden quickly - within 15 minutes. Has high strength. It has good resistance to high temperatures and glues various types of materials together. Able to withstand long-term heating at a temperature of +149 °C and short-term heating at +177 °C. The resulting seam has good stability. The price for a 56 gram package is approximately 300 rubles.
"Titan" - the main difference of this product is its low cost. At the same time, it copes well with various mechanical loads. The cost of a 310 ml bottle does not exceed 259 rubles.
“WURTH Liquid Metal” is a product from a German company based on a cyanoacrylate composition. Excellent for joining various types of surfaces. Due to its rapid hardening, it is used for urgent repairs. Thanks to the invisible seam, it also allows you to join transparent parts. The cost of a 20 gram bottle is 100 rubles.
“COSMO PU-200.280 COSMOFEN DUO” is a two-component adhesive based on polyurethane. Has high strength. Copes well with high temperatures. After the material has hardened, its seam can be painted. With its help you can glue many different building materials - drywall, aluminum, laminate, plastic and many others. It is also often used to remove seams whose width is no more than 0.8 centimeters. The cost of a 900 gram bottle varies from about 800 rubles.

It is worthwhile to carefully consider the Abro Steel mixture, improper storage of which contributes to the violation of technical properties. Detailed instructions can be found on the product packaging.

Features of choosing heat-resistant options

When buying glue for aluminum, pay attention to the information indicated on the packaging:

Heat resistance is important for the use of products at elevated temperatures.
Water resistance when glued elements interact with water.
Bonding with different planes.
Polymerization time depending on temperature of use.
Shelf life is an important indicator, since expired raw materials do not have the declared properties.

Aluminum glue is easy to use and connects all the necessary parts. And this is without the use of welding or mechanical intervention.

Modern adhesives are not made only from natural ingredients; they contain polymers.

Sealant (cold welding) Anles Uniplast-universal 20g aluminum

Epoxy plasticine, supercompound. Anles Uniplast-universal is a cold welding based on aluminum. Used for fastening workpieces made of various metals (non-ferrous and ferrous), restoring threads, repairing plumbing pipes and fuel storage tanks. This is a two-component composition, which consists of a hardener and epoxy resin. The base is further strengthened with aluminum or bronze dust.

Stages of working with Anles Uniplast-universal:

The working surface is cleaned of dirt and rust. Processed with sandpaper. Then the surface is degreased and dried.
The hardener and base must be cut in equal parts, mixed until a homogeneous mass is obtained and applied to the parts to be glued.
Secure the gluing area with a rope or place it under a weight.

It is recommended to continue work after 24 hours. Has high electrical insulating properties.

The viability of the finished composition is about 25 minutes. Temperature +20° C.
The maximum strength of the connection occurs after a day.
Cold welding is resistant to prolonged exposure to water, gasoline and oils.
Withstands temperatures from -40 to +120° C.

You need to work with this glue in a well-ventilated area and away from sources of fire.

How to work with adhesive composition

The use of adhesives makes it easier to join parts at home. To carry out the procedure, you will need sandpaper, glue, and a degreaser (acetone).

Work is carried out in a room with proper ventilation or with constant ventilation. IZ means are also used.

The following steps are performed during the gluing process:

The surface is cleaned of contaminants and treated with fine sandpaper.
Fatty areas are degreased with acetone, this will significantly increase adhesion.
Work is carried out on a completely dried surface.
The adhesive mass and hardener are mixed in the container.
The solution is stirred until a homogeneous consistency is obtained (uniform shade, consistency).

The prepared solution is used within 10–60 minutes. The manufacturer indicates more precise times on the packaging.

Both planes are treated with adhesive (spotwise or in a thin, uniform layer).
Connect the parts tightly and secure until completely dry.
Drying time depends on the manufacturer’s trademark and the conditions created; it will take approximately 2–24 hours.

During drying, the elements should not be subjected to mechanical stress.

Useful video on the topic:

How to use the mixtures?

Those who do not know how to glue aluminum at home should follow the following sequence of actions:

Rust and dirt are removed from the surface of the joined areas using fine-grained sandpaper or a brush.

Next, the surfaces are treated with acetone.
After this, you need to wait a while for the area to dry.
Mix glue and hardener in a separate container. You should get a homogeneous viscous mass.
The adhesive mixture must be applied to the surface in the form of dots or thin strips. Then the parts are pressed tightly against each other. They need to be fixed in this position and left for 15-20 minutes.

If you have any excess, you can remove it with a rag previously soaked in solvent.

How to glue aluminum to aluminum correctly

When gluing two aluminum elements, follow these steps:

Rust on the surface is removed with a brush, and sanding is done.
Degrease the area to be glued with acetone.
Dry this area.
Prepare the adhesive: place mixtures of two-component adhesive until homogeneous.
The product is applied pointwise or in a thin layer.
The parts are pressed against each other.
Fixation is carried out for up to 20 minutes.
Excess is removed with a rag moistened with solvent.

How to use the mixtures?

Those who do not know how to glue aluminum at home should follow the following sequence of actions:

Rust and dirt are removed from the surface of the joined areas using fine-grained sandpaper or a brush.

Next, the surfaces are treated with acetone.
After this, you need to wait a while for the area to dry.
Mix glue and hardener in a separate container. You should get a homogeneous viscous mass.
The adhesive mixture must be applied to the surface in the form of dots or thin strips. Then the parts are pressed tightly against each other. They need to be fixed in this position and left for 15-20 minutes.

If you have any excess, you can remove it with a rag previously soaked in solvent.

How to glue aluminum to plastic

Two-component compositions allow you to glue not only aluminum surfaces, but you can glue aluminum to plastic:

Tools and materials are being prepared.
Cleaning is done using coarse sandpaper.
Degreasing is carried out with acetone or alcohol solution.
The areas are dried.
The adhesive mixture is being prepared.
Use a brush to spread a thin layer of glue over the area.
The elements are pressed tightly.
Excess is removed with a clean rag.
Wait until completely dry.

Types of resin adhesives

Depending on the conditions under which curing occurs, epoxy resin adhesives are classified into two categories:

Products that can harden at temperatures above 1 thousand degrees. Scope of application: industrial enterprises.
Cold hardening compositions. Adhesives can harden at a temperature of no more than + 350 degrees.

When using two-component epoxy adhesives, it is recommended to add hardeners in different proportions. What glue is used to glue aluminum to aluminum? More on this below.

Useful tips

Craftsmen advise following some useful tips when buying glue and carrying out work:

Two-component compounds cope with the connection of aluminum elements, but if it is necessary to glue aluminum alloys, then it is better to use products containing methyl acrylate.
Bonding of aluminum occurs due to the splitting of the coating by the components contained in a special product.
If the design provides for use for storing food and water, then you cannot use products containing epoxy resins.

Gas welding can cause metal oxidation, which does not occur when using adhesives.

We recommend videos on the topic:

Types of resin adhesives

Depending on the conditions under which curing occurs, epoxy resin adhesives are classified into two categories:

Products that can harden at temperatures above 1 thousand degrees. Scope of application: industrial enterprises.
Cold hardening compositions. Adhesives can harden at a temperature of no more than + 350 degrees.

When using two-component epoxy adhesives, it is recommended to add hardeners in different proportions. What glue is used to glue aluminum to aluminum? More on this below.