6 best adhesives for metal
There are many ways to connect two metal parts. They can be welded or soldered, drilled and fixed with bolts, pierced with rivets ... But all of them either violate the integrity of the part, require heating to high temperatures, or are impossible to perform without special equipment. But the glue for metal allows you to securely connect the elements - even if they are tiny or can not be heated.
To simplify such unusual work, we have made a rating of 6 best adhesives for metal, which provide a reliable and durable connection.
Top metal adhesives rating
| Nomination | a place | Name of product | price |
| Top metal adhesives rating | 1 | Weicon VA 110 (NSF certified) (60 g) | 3 630 ₽ |
| 2 | Strong steel stick renewal composite 114 g | 3 256 ₽ | |
| 3 | Two-component structural adhesive Weicon RK-1500 (60 g) | 1 978 ₽ | |
| 4 | Epoxy glue EpoximaxX 1.2 kg | 1 990 ₽ | |
| 5 | Glue special Poxipol "Cold welding" (gray) | 779 ₽ | |
| 6 | Super glue universal super Bison Super Glue Gel, 3 g | 138 ₽ |
Weicon VA 110 (NSF certified) (60 g)
Rating: 4.9
Why he: Environmentally friendly, safe for health composition.
Universal cyanoacrylate Wiecom VA 110 has been certified by NSF, which confirms its safety in use and zero emissions of harmful substances to health. With it, you can glue parts and elements that even come into contact with water or food, including metal.
In addition, the adhesive is resistant to temperature effects and can be used in the range from –30 to 80 degrees. The advantages include fast polymerization, which takes up to 20 to 50 seconds on a metal base. However, full strength occurs 24 hours after placement. Upon completion of the polymerization is very shear strength - up to 20 N per square millimeter after sandblasting.
The glue is transparent and colorless, making the seam invisible. Weicom VA 110 is suitable not only for metal, but also plastic, rubber, rubber and other materials.
Virtues
- Very high strength, up to 20 N per mm2 after sandblasting;
- NSF certification confirming safety and environmental friendliness;
- Relatively fast polymerization.
disadvantages
- Full polymerization takes 24 hours, during which time it is not necessary to load the fastened elements;
- It is not recommended to apply the composition with a layer thicker than 0.15 mm, which requires caution when using;
- Comparative high cost.
Strong steel stick renewal composite 114 g
Rating: 4.8
Why he: Chemically stable, as fast as possible hardening.
Despite the fact that this material is designed for quick repair of various products (including installing patches on pipes), it can also be used as glue for metal. It seizes well with the surfaces on which it is applied, and very quickly polymerizes.
Unlike the previous composition in the ranking, this material is based on epoxy resins. Because of this, it has a plastic texture, which simplifies application to the surface. It is enough to knead it in fingers, to give the necessary form and to place on a place of connection or installation of a patch.20 minutes is enough for sufficient polymerization - after this time it will become solid and very resistant to any mechanical or other aggressive effects.
The adhesive is also highly resistant to chemicals. It may come into contact with caustic substances, including alkaline and acidic solutions, as well as ethers and alcohols.
Virtues
- Chemical and mechanical stability of the material;
- Easy to use, the ability to post as a patch;
- Quick drying takes about 20 minutes.
disadvantages
- Poor for thin, small seams, butt joint;
- The inaccessibility of the composite in Russian retail stores;
- Comparative high cost (due to the rarity in the first place on sale).
Two-component structural adhesive Weicon RK-1500 (60 g)
Rating: 4.7
Why he: High strength, suitable for joining.
Two-component construction adhesive for metal Weicon RK-1500 is designed to bond products made of aluminum, steel and similar materials in various ways. It is suitable for butt fastening, overlapping and other methods. The composition has the highest strength - resistance to stretching after drying up to 26 N per mm2and the temperature range of operation is from –50 to 130 degrees, it withstands short-term heating up to 180 degrees.
Due to the rapid polymerization with proper use of the activator, the release strength is achieved already 5 minutes after application. Layer thickness can be up to 0.4 mm with one-sided application of the activator and up to 0.8 mm with two-sided.
Glue can be used to secure the connection of materials with low surface adhesion. For example, they can attach glass to metal. The composition can also be used for fastening elements from plastic, ceramics, etc.
Virtues
- Suitable for creating thick glue seams up to 0.8 mm with double-sided application of activator;
- Suitable for smooth surfaces;
- Can be used for bonding metal to the joint.
disadvantages
- A neat application is required, as this is a two-component metal adhesive;
- 100% strength is achieved within 24 hours after application, but tempering stability occurs after 5 minutes;
- The activator is very liquid, can spread.
Epoxy glue EpoximaxX 1.2 kg
Rating: 4.7
Why is it: Low price - one of the cheapest adhesives for metal in the rating.
EpoximaxX is an improved composition of classic EDP based on epoxy resins. Due to this, it was possible to reduce the time during which the composition hardens, to only 3 hours. In addition, some of the other performance qualities of this glue for metal have also improved.
Thus, the heat resistance of the compound increased to 120 degrees. It can be used to connect objects heated during operation. It is also resistant to moisture.
The consistency of this glue on metal is liquid. Because of this, it is suitable for application using a brush. Implied use with activator. It is recommended to use this material for fastening parts overlap, then high tensile strength, shear and other mechanical effects will be achieved. So, resistance to stretching is 60-80 MPa, depending on the materials to which it is applied.
Virtues
- Low price;
- Convenience when joining with overlap, as it is easy to apply with a brush;
- High tensile strength, which is up to 80 MPa.
disadvantages
- Poorly suitable for joining;
- Fluidity, which is important to consider when working with some details (for example, small);
- Relatively long cure time for tempering.
Glue special Poxipol "Cold welding" (gray)
Rating: 4.6
Why he: Short curing time, low price.
Cold-welded two-component epoxy adhesive for metal from Poxipol has an extremely short curing time.The necessary and sufficient stiffness comes within 10 minutes after application! And in an hour it becomes so strong that the parts connected by it can be processed - drilled, sawn, cut, etc. However, it is worth considering that - like other epoxy-based adhesives - it takes about 24 hours for complete polymerization.
Glue is characterized by increased resistance to aggressive external influences. It is not destroyed by contact with moisture, direct sunlight, extremely high or low temperatures. Also, this adhesive is characterized by increased adhesion to most surfaces. The tightness and reliability of “Cold Welding” makes it suitable even for the repair of water pipes or gas pipelines.
Gray color makes it invisible on the surface of the metal.
Virtues
- Rapid hardening - 10 minutes is enough for tearing, an hour is enough for mechanical effects;
- Stability when exposed to an aggressive environment;
- Very low price, one of the cheapest metal adhesives in the rating.
disadvantages
- Full polymerization occurs a day after application;
- Poorly suitable for joining;
- Poorly suited for small, inconspicuous seams, forms a thick layer between the overlapped parts.
Super glue universal super Bison Super Glue Gel, 3 g
Rating: 4.3
Why he: One of the most durable all-purpose superglue.
Universal superglue Bison Super Glue Gel is highly durable and reliable. It is suitable for small household repairs of a variety of items, including those made from metal alloys. The special gel texture prevents leakage and spreading, so it will be much easier and safer to fasten different parts.
It is worth noting that for curing this material takes a little more time than the usual superglue - sufficient tear-off strength is achieved in 1-2 minutes. But it also reduces the risk of errors and increases safety in use, as well as simplifies overlap joints — by moving the fastened elements together, it is possible to achieve a uniform distribution of the composition over their surface to increase reliability.
The material quickly and reliably fills the pores and microcracks on the surface. This achieves increased durability.
Virtues
- The thick formulation simplifies application and protects against spreading;
- Excellent filling capacity;
- Wide temperature regime operation.
disadvantages
- Small volume, only 3 grams, suitable only for small household repairs;
- Relatively low resistance to aggressive chemical attack;
- Comparative high cost.
Attention! This rating is subjective, is not advertising and does not serve as a guide to the purchase. Before buying, you should consult with a specialist.
