Q1: What materials can HydroTherm be used on?

A1: HydroTherm can be applied to natural stone, brick, plaster, and concrete that have not been coated with paint or similar coatings.

Q2: What effects does HydroTherm have?

A2: A single application of HydroTherm offers the following benefits:

- Improved moisture resistance and waterproofing, prevention of surface degradation

- Reduction in penetration by grease, oil, and acids

- Prevention of cracks due to freezing

- Prevention of mold and algae growth

- Hardening of the material from its surface inward

- Improved heat and cold resistance

- Easy removal of ice formations

- Increased elasticity of concrete

- Enhanced performance as a primer for concrete, improving the durability of paints and wall finishes

- Prevention of paint and wall finish cracking or peeling due to humidity

Q3: What materials should not be treated with HydroTherm?

A3: HydroTherm should not be used on lead, zinc, tin, aluminum, glass, iron, or painted surfaces.

Q4: How is HydroTherm applied?

A4:

- Use mortar or a mortar sealant to fill cracks, rock pockets, and holes.

- Protect surfaces such as glass, aluminum, and plants from being coated by covering them.

- Avoid using HydroTherm with water-based paints and finishes, especially types RX and GT.

- If the surface to be treated exceeds 50°C due to heat sources or direct sunlight, cool it with plenty of water before applying HydroTherm.

- Apply HydroTherm generously using a brush, paint roller, or paint gun on vertical surfaces or ceilings.

- For economical use, set the compressor discharge pressure to 1.5–2.0kg/cm² and apply several coats from top to bottom.

- Pour directly from the container onto floors and apply generously with a brush or paint roller until absorption stops.

- If HydroTherm crystals adhere to finished surfaces like tiles, wipe them off thoroughly with a wet cloth while they are semi-dry.

Q5: What precautions should be taken when using HydroTherm?

A5:

- HydroTherm reacts with carbon dioxide in the air and exhibits its water-repellent effect after drying. Thus, ensure it is not exposed to rain during application. Be cautious of over-application on dark, low-absorbency stones, which may result in white spotting on the surface.

- Since HydroTherm contains potassium hydroxide and becomes strongly alkaline, avoid contact with eyes, skin, and clothing. Wash off immediately with plenty of water if it scatters on aluminum or glass.

- Seal the container immediately after use, as HydroTherm becomes cloudy when exposed to carbon dioxide. Avoid contact with lead, zinc, tin, aluminum, glass, etc., as these materials can corrode. Stored in an airtight container, HydroTherm remains stable for at least 12 months.

Q6: What structures has HydroTherm been used on?

A6:

- Significant application examples (with no issues after 30 years):

- For masonry:

- 1989: National Diet Building, large-scale ceramic tile waterproofing of the spire

- 1989: Tokyo Patent Office Building, new construction granite color leakage prevention and application to brick

- 1985: Osaka Subway Namba Station, tile joint waterproofing and efflorescence prevention

- 1989: Tokyo Station & JR Art Museum, 80-year-old brick exterior wall waterproofing and humidity control, application to tiles

- Civil engineering works:

- 1985: Tokaido Shinkansen, JR Shinkansen viaduct and viaduct repair work

- 1987: Metropolitan Expressway, Yokohane Line viaduct waterproofing

- Precast concrete:

- 1990: Palace Side Building in Tokyo, PC exterior wall refresh and deterioration prevention

- 1990: Tokyo Art Theatre in Ikebukuro, exterior and interior wall efflorescence and deterioration prevention

- Plaster:

- 1991: Himeji Castle, national treasure, plaster wall anti-mold treatment

Recent applications include floors in Haneda Airport Yamato cargo area, Grand Nikko Tokyo Daiba, Guam Hotel Okura, Yokohama Bay Sheraton Hotel, Disney Ambassador Hotel, Tokyo DisneySea Hotel MiraCosta, Universal Studios restaurants, and various other commercial buildings and embassies.

Q7: What are the components of HydroTherm?

A7: Alkali metal salts and silicate compounds.

Q8: What are the features of HydroTherm's structural reinforcement?

A8: HydroTherm is a colorless to translucent

liquid composed of nano-molecules. When applied to surfaces such as natural stone, brick, plaster, and concrete, it penetrates capillaries and voids, forming a water-repellent layer on a large portion of the surface, thereby preventing water absorption. It forms a protective film that exhibits waterproofing effects, notable durability, and anti-fouling differences, including anti-mold properties.

Q9: What is the purpose of the reinforcement agent?

A9: While it results in structural reinforcement, the primary purpose is not reinforcement.

Q10: Are there any human or environmental impacts?

A10: It is suitable for drinking water, so the impact can be considered zero.

Q11: How many years does the effect last after application?

A11: The effects are permanent. Structures such as the National Diet Building, treated in 1988, have maintained their appearance and integrity since application.

Q12: How long can HydroTherm be stored?

A12: If sealed, HydroTherm can be used indefinitely, as it evaporates like water. This has been confirmed with products stored since 1995 without any separation or sedimentation.

Q13: How should protection be applied to lead, zinc, aluminum, and glass?

A13: Protect thoroughly with masking tape. If accidentally applied, any remaining crystals after evaporation can be wiped off with a wet towel.

Q14: How much should be applied?

A14: Depending on the material of the structure:

- For concrete and brick: 200cc per square meter

- For silicate board: 250cc per square meter is preferable.

Q15: Have there been any cases where HydroTherm did not perform as expected?

A15: No particular instances have been noted. However, it cannot be used on surfaces coated with paint or similar materials. It prevents mold growth in tile joints.

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