Whilst liquid potassium silicate is highly favoured for its ‘ready-to-use’ nature, potassium silicate powder is renowned for its ‘cross-industry compatibility’—it is inherently suited to applications requiring dry processing, long-term storage or strict water control. Currently, global consumption of potassium silicate powder accounts for approximately 20% of total consumption; however, in certain specific industries, the powdered form is the only viable solution.

• Welding Rod Coatings:  This is the most representative application area for potassium silicate powder. In the coatings of basic and stainless steel welding rods, potassium silicate must be added as an arc stabiliser and binder; potassium ions ensure a smooth and stable arc and reduce spatter. Potassium silicate is added as a dry powder component during the premixing process, after which it is rapidly wetted with water, whilst binding and granulation occur only at the moment of application. In this vast global market, which consumes hundreds of thousands of tonnes of welding flux powder annually, the frequency of use of powdered potassium silicate is no less than that of liquid silicates in coatings.
• Dry-mixed building materials and highly durable inorganic powder coatings： This is the fastest-growing area of innovation in recent years. When powdered potassium silicate is dry-mixed with cement and a setting accelerator, contact with water causes a rapid release of silicate ions, thereby promoting hydration and hardening. This achieves a controlled reaction effect that is difficult to attain with liquid formulations. Users need only add water and mix on-site prior to use, extending the shelf life to one to two years. This method utilises the ‘isolated dry reaction’ properties of powdered potassium silicate, cleverly circumventing the key limitations of liquid potassium silicate. Self-levelling mortars, rapid repair mortars, and waterproofing and anti-seepage materials also employ similar principles.
• Dry Powder Fire Extinguishing Agents and Specialised Protection： Ultrafine dry powder fire extinguishing agents based on potassium silicate perform exceptionally well in extinguishing Class B fires and metal fires. This dry powder maintains excellent flowability throughout the entire service life of the fire extinguisher; upon activation, it absorbs heat and forms a protective barrier—a characteristic not possessed by liquid potassium silicate.