DPS waterproofing agent for concrete infiltration crystallization is a water-based inorganic waterproofing material. Its waterproofing mechanism involves a chemical reaction with free alkali in the concrete, generating stable dendritic crystalline gel that can effectively block micro cracks and capillary gaps inside the concrete, giving the concrete structure long-lasting waterproofing function and better compactness and compressive strength. The penetration depth is about 3 centimeters. At the same time, it can effectively prevent the erosion of concrete by acidic substances, oil stains, and engine oil. The American permanent liquid DPS waterproof material is not only a concrete waterproof material, but also a concrete protective agent: it is acid and alkali resistant, corrosion-resistant, and can resist high temperature changes! It can also resist the damage and erosion of chloride ions on concrete.
DPS= Deep Penetration Sealer

First used for waterproofing and moisture prevention in underground military shelters in the United States during World War II. There is a wide variety of DPS waterproofing materials available in the market for permanent liquids imported from the United States. To determine whether it is imported permanent liquids from the United States, the following points can be used:
1、 Check if there are any foreign websites, if not, it is highly likely to be fake.
2、 To check the website registration time, you can use the Whois domain name to check the registration time. If a company has a very long website registration time, it is likely to be fake. It's a temporary website.
3、 If there is a website, it will definitely have contact information for the United States, such as a phone number in the United States. Just call and ask for it.
4、 If it is an imported product, there will inevitably be customs declaration procedures such as a declaration form. If it cannot be provided, it is not considered imported.
5、 If there is a customs declaration, the true situation of the declaration number can be checked through the customs website.
6、 If there are friends in the United States, they can go and conduct a practical investigation.
How to determine a good quality permanent condensate DPS to protect one's own interests from deception? When choosing, we cannot simply judge whether this material is called "permanent curing liquid DPS" based on the product name, but rather analyze it from the above points:
1、 Applicable base truly permanent liquid DPS: only suitable for concrete or cement mortar foundations, as DPS needs to react with cement to form crystals to achieve waterproof, anti-seepage, and anti-corrosion effects; Unqualified permanent solution DPS: can be used on almost all substrates such as bricks, tiles, stone, paint surfaces, etc;

2、 Permanent setting solution with qualified pH value DPS: 11 ± 1; Unqualified permanent concrete DPS: 13 ± 1 (too strong alkalinity can cause long-lasting damage to concrete);

3、 Permanent setting liquid DPS with qualified anti-seepage level: ≥ S11 level; Unqualified permanent condensate DPS: unable to reach S11 level;
4、 Qualified hydrophilic/hydrophobic permanent solution DPS: It is definitely mainly hydrophilic. It is an internal crystal sealed waterproof. Unqualified permanent condensate DPS: hydrophobicity or unclear condition. Because hydrophobicity does not have crystalline sealing function, the lifespan will not be long, let alone without a protective layer;

5、 Penetrating into the qualified permanent condensate DPS at a depth of about 3 centimeters. Refer to JC/T1018-2006 Permanent Liquid DPS; Unqualified permanent condensate DPS: It is impossible to reach 3 centimeters;

6、 Durable permanent solution DPS: It is an inorganic waterproof material with a shelf life of at least 5 years (in a cool place); Unqualified permanent condensate DPS: The shelf life is basically only one year;
7、 Qualified permanent condensate DPS does not need to be diluted with water and is emulsified at high temperatures in one go. It is a high-density, low viscosity material; Unqualified permanent solution with high viscosity needs to be diluted with water, otherwise it is not easy to penetrate;

8、 The qualified amount of permanent condensate DPS for construction is about 3 square meters per kilogram. Reference: CECS 195-2006 Permeable Crystalline Waterproof Materials; Unqualified permanent condensate DPS: situation unknown;

9、 Is the concrete protected? Qualified permanent condensate DPS: has acid resistance, alkali resistance, and corrosion resistance. It is a protective agent for concrete. Refer to DBJ01-51-2001 Permeable Waterproof Materials; Unqualified permanent solution DPS: does not have the function of protecting concrete;
At the same time, qualified penetrating crystalline waterproof preservatives and permanent setting liquid DPS waterproof materials must also meet the following requirements:
Flammability: Non flammable;
Surface tension: ≤ 36 mN/m;
Compressive strength: ≥ 100%;
48 hour water absorption rate: ≤ 65%;
Waterproof pressure ratio: ≥ 200%;
Frost resistance: 20 ° to -20 °, no powdering or cracking on the surface after 15 cycles;
Heat resistance: 80 ° C, 72 hours, no powdering or cracking on the surface;
Alkali resistance: After soaking in saturated calcium hydroxide solution for 168 hours, there is no powdering or cracking on the surface;
Acid resistance: soaked in 1% hydrochloric acid solution for 168 hours, the surface has no powdering or cracks;
Corrosion of steel bars: no corrosion;