Lithium Silicates Lithisil® Lithium Silicates are preferred to sodium and potassium silicates for many applications, including concrete surface treatments, specialty paints and coatings, welding rod binders, refractory, ceramics and glazes Lithisil® 25 has a higher concentration of lithium, while Lithisil® 829 is a potassium lithium silicate. Both liquids are available in drums and IBC’s. Custom ProductsCan't find what you're looking for? Our engineers can work with you to customize our products to fit your specific needs!Contact Customer Service Lithium Silicates Description