Making conductive varnish with your own hands

Making conductive varnish with your own hands How to make conductive varnish with your own hands

Any repair work on electronic equipment is impossible without the use of specialized varnish composition. Experts constantly use conductive varnishes.

Such means have a huge field of application - varnish compositions are used to install chips and microcircuits, for the restoration of electronic circuits, and in the case of repair work on the heating system of automobile windows, as well as for the repair of household appliances and computers.

These special varnishes are based on unusual micro-grained components, which, after the polymerization process, form a matte, durable film on the surface to be treated, which has excellent electrical conductivity.

General information

The composition of conductive paints and varnishes

Within 1 hour after the application of such materials, the restoration of electrical conductivity.

After 10 hours, the result will be even better up to the maximum possible. Some of the masters will repeat the treatment to enhance the effect. Since it is difficult to process such materials (they are designed for a small processing area), a very small amount of such funds is required to restore any electronic equipment. It is for this reason that the electrically conductive composition is offered in small quantities. These materials are packaged in small bottles or tubes.

Conductive sprays

Along with varnish, there are also materials similar in properties in aerosol cans. This is a spray that is made on the basis of graphite powder. It is used to create a live surface on materials such as plastic, metal, glass, or even wood. Sprays can also be used as a lubricant when you want to create a smooth and stable surface that can withstand high temperatures and is also slippery and dry.

Requirements

The main quality of such adhesives and varnishes is high electrical conductivity.

It will be counted due to the presence in the composition of special, extremely small metal particles. Manufacturers most often use nickel-type powder for this, which conducts electric current extremely well. Also in the composition of such a product there are fractions of precious metals, for example, palladium, silver and gold. In addition to electrical conductivity, it is important that the varnish composition had a minimum resistivity of the specific type. At a high concentration of conductive components, the adhesive properties of such materials weaken.

So that the degree of adhesion is not lost during the use of electrical equipment, and varnishes for repair work have an extremely low thermal resistance. Still, the compositions must fulfill their main function and perfectly glue and protect surfaces.The product must necessarily be strong, and also elastic - such characteristics are given by polymer binders.

Please note that very liquid consistency is not allowed for these materials. The viscous mass allows the prevention of possible defects in the microcircuit during the repair process or replacement.

The speed of drying will also be extremely important - this is to make working with varnishes and adhesives more comfortable.

Overview of varnishes and adhesives from popular brands

Making conductive varnish with your own hands On the construction market, you can find products of foreign and domestic manufacturers. So, among the domestic materials one can single out "Contactol". Do-it-yourself conductive varnish for electroplating is not difficult to make. But in the specified composition, as the manufacturer declares, it contains silver powder.

The product is perfect for repair work on the rear window heating system on a car. Even the domestic product Elecont has similar characteristics. It is made on the basis of epoxy resin and has excellent adhesion to all types of surfaces.

Such a product is aimed specifically at motorists, but, according to the specialist, its effectiveness is rather weak. The lacquer composition of American origin "Don Deal" has higher characteristics, but the price for such a product is quite high.

The material is made of a conductive compound and an adhesive.

To restore the conductive layer on the buttons to remove cracks on the plume of various electronic devices, experts strongly recommend Elast varnish composition. The only drawback is the short service life compared to adhesives.

How to make a varnish composition on your own

Experienced experts advise not to use branded products, but to make glue and varnishes with your own hands. It is easy to make such a mixture and you do not need to overpay.

A self-made product is no worse in properties and even characteristics than varnishes, graphite aerosols and adhesives. It is based on silver and graphite powder. Solvents, binder and adhesives are also used. The compounds made by this method are ways to quickly restore any devices.

Method # 1

This is one of several recipes for preparing graphite varnish, and for work you may need:

  • 15 grams of fine-grained graphite powder.

  • 30 grams of silver powder.
  • 30 grams vinyl chloride-vinyl acetate copolymer.
  • 32 grams of pure acetone.

To obtain a graphite-type varnish, all components from such a recipe should be thoroughly mixed in a mortar. The result should be a liquid that resembles syrup.

It will have a grayish black tint. Next, such a liquid should be poured into a glass container with a tight-fitting lid.Before using the composition, be sure to shake it up, and if you get a very thick mixture, then add a little solvent. Drying time is 1/4 hour.

Method # 2

There will also be used graphite in the form of a powder, as well as silver.

As a binder, you can use:

  • Making conductive varnish with your own hands 4 grams of nitrocellulose.
  • 2. 5 grams of rosin.
  • 30 grams of ethyl acetate.
  • 31 grams of ethyl denatured alcohol.

  • 3 grams of shellac.

First, mix the substance in powder in a mortar. After that, you should add binding components, and bring all this to a state of homogeneity of the pasty type, and then transfer it to a container with a tight-fitting lid. Before you start using a self-made product according to this recipe, you should mix it well, and then adjust the viscosity with a solvent.

Method # 3

We suggest making a conductive varnish with your own hands to restore the tracks.

Depending on the mechanical type of load on the electrically conductive connection, various available means can be used. So, graphite will be easily mined from finger-type batteries. Then it should be crushed and mixed with tsaponlak. But the disadvantage of such a mixture will be a weak degree of adhesion to rubber products, which means that it will definitely not work for repairing remote control keys.

Method # 4

You can quickly make this composition for conducting current.

It is not really a varnish, but the product is conductive. Buy super glue and a 2M pencil, or 4M. with a file, you should grind off the pencil lead in the total amount, which is equal to the volume of super glue. Next, the tube should be unrolled from the back side, pour graphite powder into the glue mass, and then move it until the mass is homogeneous. Next, pack the tube back.

You can use a hand-made mixture like the most ordinary super-glue, that is, through a nozzle.

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