Waterproofing mixture Ceresit CR 65: specifications

Small construction sites and large commercialNetworks offer the consumer a huge selection of mixtures for various purposes. The leading position in popularity is the products of the famous German concern Henkel, which is produced under the brand Ceresit. On the shelves of construction stores, you can see various adhesives of this brand, leveling mixtures, primers, grout for ceramic tiles and many other products.

We will focus on waterproofingthe composition manufactured by this manufacturer under the Ceresit CR-65 marking. In this article we will find out what characteristics this product is endowed with, what properties are inherent in it, how to use it correctly, where a mixture (waterproofing) CR-65 can be used.

Application area

Judging by the feedback from consumers, the mixture of "Ceresite"It is designed for waterproofing works on non-deformed concrete bases. The composition can be applied to any surface (ceiling, walls, floor) to create a waterproof coating. It can be used both inside and outside the premises. The main task of such insulation is to prevent the occurrence of dampness and the penetration of moisture inside buildings. Buyers' comments indicate that the waterproofing mixture Ceresit CR-65 is most often used:

1. For waterproofing surfaces of concrete and brick.
2. Application of a protective layer inside and outside the basement and underground premises.
3. The creation of waterproofing in rooms with a high level of humidity: kitchens, toilets, industrial premises.
4. For waterproofing monolithic pools, baths, water storage tanks.
5. As a protective layer to prevent the destruction of underground tunnels and hydraulic structures from water and frost.
6. To protect the foundation of buildings.

Basic properties

Dry mix (waterproofing) consists ofPortland cement, polymer with mineral additives and various modifiers. The product is sold in the form of dry composition, packed in bags of 25 kg. Judging by the feedback of consumers, in the hardened state the coating has the following properties:

• excellent vapor permeability;
• resistance to low temperatures;
• ecological compatibility;
• water resistance;
• strength;
• no shrinkage;
• hydrophobicity;
• resistant to salt and alkali.

The liquid composition is excellent in the slits, grooves and pores of the surface, so that a reliable coating is formed, preventing the penetration of even the smallest water particles.

Waterproofing mixture Ceresit CR-65: technical specifications

Now let's look at the technical characteristics of this product. The information from the manufacturer, which is on the package of the goods, speaks about the following:

1. For the preparation of a working composition of 25 kg drymixture you need 6.5-7 liters of fluid. If the application of the mass is carried out with a spatula, the amount of water should be reduced to 5.5 liters.
2. The prepared mixture is usable for the first two hours.
3. Perform work on the application of the waterproofing layer at temperatures from +5 to +30 degrees.
4. The humidity in the room at the time of surface treatment should not exceed 60%.
5. Adhesion of the composition with the surface is 1.0 MPa.
6. Compressive strength after two days - 10.0 MPa, and after 28 days - 15.0 MPa.
7. The hardened compound tolerates more than 100 freezing cycles.
8. The treated surfaces can be operated at temperatures from -50 to +70 degrees.

Three days after the application of the composition, the installation of ceramic tiles can begin. The ability to withstand the hydraulic load coating gets 5 days after application.

Before you go to the store for purchase,each master will want to understand how economical the waterproofing mixture Ceresit CR-65 is. The consumption of material in these calculations plays a very large role. The manufacturer informs us that for processing each square of the surface we need from 3 to 8 kg of dry mixture. This index varies from the thickness of the protective layer and the number of treatments.

Preparation of the substrate for treatment

Before proceeding with the application of the finishedsolution, you need to thoroughly prepare the surface. It should be fairly dense, even and firm. Before treatment, it is cleaned of various contaminants and dusted. Drop off plaster, paint and all kinds of detachments must be removed. All cracks and depressions are scraped and covered with special compounds.

Cleansed and even ground is abundantly spilledwater, preventing its accumulation and the formation of streaks. After this, you can apply the mixture. Waterproofing products of this brand can be used together with a water repellent Ceresit CO-81, which several times improves the performance characteristics of the first material.

How to prepare a working solution?

To avoid errors during work, you needKnow how to properly prepare waterproofing mixture Ceresit. Comments from consumers and the manufacturer say that to mix the solution should take a strictly measured amount of water with a temperature of +15 to +25 degrees. Both components are connected and mixed with a low-speed mixer until the lumps disappear. After the first kneading, the mixture is left for 5 minutes, after which it is re-kneaded.

Application of the mixture

Those who have not yet encountered this product,certainly interested in how difficult it is to work liquid waterproofing mixture (Ceresit CR-65/25). Customer feedback indicates that there is nothing difficult in this process. Anyone can do this kind of work. In addition, consumers mention the quality of this material. Judging by their feedback, it will last a long time without causing trouble.

Waterproofing "Ceresite" is applied in at least 2layer. During the first pass, a macklovice is used. All subsequent layers are applied with a spatula or brush in cross directions to the frozen (but not dry) first layer. As a result, the entire treated surface should have a coating of the same thickness. The coating can be started after 5 days.