The 10 Best Bituminous Primers of 2021

Bituminous primer is used not only in construction, but also in road works. Before us is just such a product, which does not interfere with its use for roof waterproofing. The main disadvantage of the primer is the low temperature range. Already at -10 degrees, complete hardening occurs, that is, you can work only in warm weather. In addition, before application, the product requires refinement. This is a concentrate, that is, a full-fledged mastic. Firm and thick. To turn it into a primer, you need to add a solvent and mix thoroughly. A good solution for high product costs, but very inconvenient for private construction.

Goodhim is popular enough in the construction market to be able to overcharge, but they don't, which is why they are often chosen by waterproofing professionals. Before us is a primer that cannot be called the best in any particular category. Rather, it is the most balanced. It has good adhesion, optimum penetration into the structure and an average drying time. The composition contains several types of solvents, including natural ones, which reduce the toxicity of the product. True, the consumption is quite high and it varies greatly depending on the type of surface. But even with the most economical application, it will not be possible to go below 0.3 liters per square meter.

The manufacturing company "Bitumen Product" is famous for its extensive catalog. It has both expensive, high-quality products, as well as budget ones. Before us is the cheapest primer, while its quality characteristics cannot be called bad. Mastic has high adhesion. Quickly penetrates the surface of the material. Possesses bactericidal protection and good plasticity. The best option for those who want to save money. But you have to put up with a long drying time.Approximately three hours after application. And also with the heterogeneity of the structure. Before work, the primer must be thoroughly mixed and repeated this procedure about once an hour.

Before us is an industrial bituminous primer, which is produced by PETROMAST. Its main feature is deep penetration into any material and increased adhesion, including with polymers. The product is intended for large building projects where surface cleaning is not possible or difficult. The composition includes unique additives that increase the ability to absorb concrete, metal, wood and even asbestos into the structure. It is PETROMAST that is most often found in roofing work on large objects. There are few problems with it in work, and the mastic is ready for application immediately after opening the container. But the temperature range let us down. It is very small for both winter and summer.

If you are not used to half measures and you need the best bituminous primer, then ECOMAST is exactly what you need. Its main disadvantage is the price. The product is very expensive, but such a price tag is fully justified by the composition. It includes more than 20 different additives. Including a set of solvents, both natural and chemical, as well as plasticizers and bactericidal components. This mastic will reliably protect your home from any adversity. She is not afraid of mold and corrosion. It withstands even large amounts of water and interacts with any surfaces. In addition, the consumption is only 200 grams per square meter, which partially eliminates the not-so-attractive price tag.

Most often, bituminous primer is sold in large buckets, but if you have a small area that needs waterproofing, then it does not make sense to buy it. Before us is a rare phenomenon in the construction market - a primer in a small two-kilogram container, which is enough for 6 square meters of area.Yes, the consumption is significant, but it should be understood that we have a high-quality mastic that adheres to any surfaces, including polymer ones. It contains a lot of natural solvents, so you can work even in a poorly ventilated area. Toxicity is low, and complete drying occurs within an hour. The best option for small jobs.

A bituminous primer is a product that a manufacturer can experiment with by adding various additives to its composition. Firm Favorit, for example, added a special plasticizer, which made the coating as monolithic as possible. In practice, this allows you to apply insulation, including on dusty surfaces. It is very convenient for large construction, when there is no time and opportunity to thoroughly clean the base. Consumption and container volume also indicate the appointment of a primer for large objects. A bucket of 20 liters will allow you to process a very large area, and the time for complete drying will take no more than an hour from the moment of application.

Bitumen-based mastic has an important drawback - slow drying. This may take several days, and if they are not there, and you need to quickly do the work on waterproofing, pay attention to the primer from Bitumex. At room temperature, it dries completely in just half an hour. This is the best indicator among all competitors, and the manufacturer managed to achieve it through the use of a whole range of solvents, both chemical and natural. Natural solvents significantly reduce the toxicity of the product, and chemical ones retain their consistency even at strong negative temperatures. The product is ready for application without preheating.

This bituminous primer is available in a ready-to-use consistency. The maximum that you need is to mix a freshly opened jar.The product can be applied with a roller or brush, or through a spray gun with a 1.5 mm nozzle. The addition of solvents is not required. In finished form, the product does not spread and is quickly absorbed into the surface. The composition of the product is unique. It is based on petroleum and polymer resins and therefore has good adhesion to materials based on other polymers, such as plastics. Not every mastic can boast of such abilities, and the price is definitely pleasing.

The Russian manufacturer TechnoNIKOL has long established itself in the market and has an impeccable reputation. This is the best bituminous primer, according to numerous online reviews and independent tests. It has a balanced consistency based on natural solvents. The product is less toxic and dries quickly, and can be applied in a thinner layer. Despite this, the consumption is quite high, but you do not have to put a second layer. Even a thin film is sufficient for reliable protection against moisture. It should also be noted excellent adhesion.If the primer acts as a binder, then there is no need to worry about how it will interact with different materials.