Cas: 68554-70-1
English
Potassium methyl silicate is an alkaline aqueous solution generated by the reaction of potassium hydroxide and methyl silicic acid. It can react with CO2 or other acidic substances in the air to form active substance polymethyl silicate to produce waterproof properties. It is mainly used as a mineral waterproofing agent. This product needs to be diluted with water when used, which can produce surface waterproofing and reduce water absorption. It has the characteristics of being permeable, absorbable, and able to maintain the natural appearance of the substrate. It can react with CO2 or other acidic compounds in the air to form an insoluble mesh waterproof and breathable film on the surface of the substrate. It has excellent waterproof effect and anti-seepage, moisture-proof, rust-proof, anti-aging, anti-pollution and other advantages, avoiding water absorption into the substrate, thereby reducing peeling caused by freezing and thawing and weathering, and increasing the life of the substrate. This product is simple to construct, low in cost, long-lasting, resistant to scrubbing, and resistant to high and low temperatures (-50~150℃).
Physical and chemical properties
| CAS No. | 31795-24-1 |
| EINECS No. | 250-807-9 |
| Color and Appearance | Colorless Clear Liquid |
| Solid Contents | 40-45% |
| Active Substance | 25-28% |
| pH Value | 12~13 |
| Density 25/25°C | 1.25~1.29 |
| CAS No. | 31795-24-1 |
Application
This product is mainly used for surface treatment of stone, bricks and tiles, ceramics, concrete, cement mortar, perlite, gypsum and gypsum board, wood, etc. It can also be used as an additive for water glass.
Instructions for use
1. Clean the surface of the substrate before use, remove the water, dirt and other attachments on the base to be treated. If there are cracks, fill them with putty or cement slurry. The surface of the substrate should be flat and solid, and there should be no hollowing or looseness.
2. Before construction, slightly moisten the surface of the substrate for absorption.
3. Dilute to 3% or lower concentration when using. If you need to use a concentration higher than 3%, you must first conduct experimental verification. Using a high concentration will cause white residue to form on the waterproof surface.
4. It can be constructed by soaking, spraying or brushing with rags, sponges, brushes, rollers and sealed spray guns. It can also be mixed into concrete for use.
5. After brushing, let the treated surface dry naturally, and brush it a second time before the surface is dry. If used for surface protection of stone and tile, wipe off excess liquid with a soft cloth before the surface is dry after construction, and maintain it without water for at least 24 hours.
Things to note：
1. Before use, conduct a small sample concentration test to determine whether the concentration is suitable for your specific use.
2. This product is extremely corrosive and is strictly prohibited from direct contact with the skin. If accidentally contacted, please rinse with water immediately. If it comes into contact with the eyes, wash with water immediately for 15 minutes and seek medical attention in time. This product can also damage or kill plants, stain or corrode glass, plastic, aluminum and most metals. Be particularly careful when spraying, and avoid nearby plants or objects with waterproofing agents. When used for home decoration, keep children away from it. However, the alkalinity of the product disappears after the surface is dried, and it is harmless to the human body.
3. If the waterproofing agent is prepared too high or used too much, a small amount of white precipitate will form on the surface after drying. If it is not cleaned by washing with water or wiping, it is necessary to scrape the surface to remove it.
4. If the temperature is too low in winter, the product will produce a frozen crystal structure. When heated to room temperature, the solution will return to transparency, and the active ingredients of the product will not be destroyed, so it can continue to be used.
5. It is recommended to wear protective gloves and goggles during construction, avoid inhaling the gas generated by the product during outdoor construction, and it is recommended to perform local exhaust when spraying or fogging in a closed environment.
Packaging and Storage
This product is packaged in 50-60kg and 250kg plastic barrels and stored in sealed containers at 25℃ or below. The shelf life is 12 months.
This product is not a dangerous product, but it is highly alkaline and should be properly transported and stored.
For more information on Safety Data Sheets (MSDS), Product Safety Data Sheets, and Product Inspection Reports, please contact us.
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Our Market
Hocon International Co., Ltd. was established in 2015, is a manufacturer specializing in silicone products. Its product varieties include: organosilanes, silicone resin, silicone oil, modified silicone oil and their deep-processing products, the application fields of the products involve daily ...
