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Liquid gaskets or otherwise called sealants for cars appeared on the markets relatively recently. But during this period they managed to demonstrate their practicality and the need for different situations. The most important function performed by these tools is undoubtedly the interchangeability of engine gaskets or other parts, the elimination of leaks, punctures or repair parts by gluing. Body sealants are used for sealing joints, ensuring impermeability, bonding.

Sealant Selection Criteria

The market for automotive services offers a large number of types of sealants for cars: for bodies, pipe connections, hatches. All types differ in such indicators as resistance, withstand temperatures, elasticity, harmfulness to cover, etc.

Читать далее о видах герметиков для автомобиля и как правильно их использовать-->Существуют специальные клей-средства для «любителей». Они имеют меньшую стоимость и единичный объем. Более профессиональные варианты стоят несколько дороже и продаются в больших по размерам тарах.

Sealants produced abroad are available with dispensers, their usual volume is 40 or 90 grams. Domestic manufacturers often use the usual tubes of aluminum. Thanks to this material you can not worry about the safety of the substance.

When choosing a sealant for the body should be aware that some of them can be applied only with a gun. You should not save on the volume of capacity. A large tube in the calculation can be a better purchase for the means, but in the end it turns out that it is rarely necessary to use it, and the shelf life is small. If the use of a substance is necessary as a gasket, it is very important not to forget to check its heat resistance. The ideal option in this case would be endurance up to 345-375 degrees.

Types of sealants in composition

Anaerobic seams

Such sealants are frozen in the absence of oxygen and in contact with the surface of the metal. The substance must be applied to a metal surface, connect the parts, wait for hardening. If oxygen acts on it, it will remain liquid. However, this can not always be called a minus. For example, if the sealant is applied neatly and slowly, it will not harden immediately, giving more time to cover.

But a serious disadvantage for this type of "liquid gaskets" is its ability to cope with only small irregularities, and strict admission to the uniform thickness of the joint is necessary. So it is better to use this sealant only for professionals, since special skill, skills and equipment are necessary for use.

Silicone sealants

This view is much more suitable for non-professional body work. It is durable, resilient, provides excellent impermeability even at high pressure. The hardening of the sealant for the car is provided by moisture in the air for 10 minutes. It is able to fill irregularities in the size of up to 6 mm and is more practical and convenient to use and apply.

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Synthetic base

The main ingredient here is resin. However, they are not so popular in everyday use among motorists.

How to use sealant

There are rules and small tricks of using “liquid gaskets”, which allow you to effectively spend the tool.

• Careful preparation of the surface for application. It should be clean, dry and free of grease. To achieve this, you can wipe it with gasoline or white spirit.
• Remove old seal. Such cleaning should be done carefully and in no case with emery paper - scratches may remain.
• Application only on one surface with a solid line with a thickness of 1 mm.
• Avoiding over-pulling connections.
• The hardening time can vary from 20 minutes to 12 hours, and you must wait completely for this time.

Types of body sealants

All glue substances can be divided according to their area of ​​application. One of them is the bodywork used for high-quality protection against moisture and corrosion, tightness of the connection parts of the car body, there are automotive sealants for seams. There are several types of these types of tools that differ in the method of application and some characteristics.

Spray Moisture Sealant

Single-component and sprayed product has a large number of dry substances, which are based on MS-polymers. Hardening occurs under the influence of moisture contained in the air, which ensures durable and flexible application to the coating. The sealant is applied with a pistol, dries out within 20–30 minutes, masks the covering of the seams in the engine compartment, the bottom, the trunk under the factory one.

Brush Sealant

This sealant has a wide range of applications manufactured on the basis of nitro rubber. It is a complete replicator of the factory seam and can be used for the boot, fixings for flavors, lintels, pallet, wheel wells. Apply it should brush. Does not form streaks, dries within 10 minutes, for the subsequent coloring - within 3 hours, provides reliable protection against water, oil and gasoline.

Tape Sealant

Suture tape is needed to recreate the seams of the plant at the joints of the overlap. This light green adhesive tape is very convenient and easy to use. It is not required for use to wait for drying of the material, it can be painted, very flexible, suitable for surfaces with a small radius.

Extruded Sealants

This type of hermetic means for the body is used for internal and external connections to reproduce a very thin and tight joint. Apply it with a pneumatic or handgun. Such sealants of different colors specifically to create different substrates.

So which sealant to choose? To ensure the best possible car protection, several factors must be considered:

• the place of use of sealant for the correct choice of the necessary means;
• proper preparation of the site of application, which will ensure high-quality connection and tightness;
• proper performance of work according to the instructions, allowing to make the use of the substance effective, high-quality and economical.