Kepra Industries supplies Silicate - Free Stabilizer for Uniform and Even Hydrogen. Kepra Industries manufactures and supplies guar gum powder and its derivatives for food grade and industrial grade, textile printing thickener kepragum LS/70 and sodium metanitro benzene sulphonate 95% min. Powder [Resist Salt]. The Silicate - Free Stabilizer for Uniform and Even Hydrogen is a Unique Blend of organic and inorganic components that, synergistically, stabilize Alkaline, Hydrogen peroxide Bleach Baths. It can control the decomposition of Hydrogen Peroxide with little or no Sodium Silicate.