{"product_id":"npk-raw-silica-45-silicon-dioxide","title":"NPK Industries RAW Silica 45% Silicon Dioxide","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNPK Industries RAW Silica is a concentrated, pH-neutral plant supplement containing 45% biogenic silicon dioxide. Its flowable powder formula supports stronger cell walls, sturdier stems and branches, improved structural resilience, and greater tolerance to challenging environmental conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eUnlike conventional liquid potassium silicate products, RAW Silica does not add potassium or substantially raise nutrient-solution pH. Some silica particles become available quickly, while others remain within the root zone for gradual release. The formula is suitable for soil, coco coir, hydroponic, living-soil, and foliar feeding programs throughout vegetative growth and flowering.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eKey Benefits\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003e45% silicon dioxide:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Supplies a highly concentrated source of biogenic silica.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eStronger plant structure:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Supports reinforced cell walls, stalks, stems, and branches.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eImproved weight support:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Helps plants develop the structural strength needed to support flowers and fruit.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eEnvironmental resilience:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Supports tolerance to heat, drought, wind, salinity, and intense lighting.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eWater regulation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Helps plants manage moisture and maintain normal physiological function during stressful conditions.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003epH-neutral formula:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Does not create the dramatic pH increase associated with many potassium silicate liquids.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePotassium-free silica:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Supplies silicon dioxide without changing the base fertilizer’s potassium analysis.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMicrobe-friendly:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Compatible with beneficial microorganisms, living soils, and biologically active root zones.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eDual availability:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Includes particles that become available quickly and particles that remain for gradual root-zone release.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eFull-cycle application:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Can be incorporated during vegetative growth and flowering.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eFlexible compatibility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for soil, coco coir, hydroponic, irrigation, and foliar programs.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eFormula and Physical Characteristics\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eSilicon dioxide:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 45%\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eIngredient:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Biogenic silicon dioxide\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eChemical designation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e SiO₂\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eForm:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Flowable powder\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eSolution behavior:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Water-compatible suspension with partially dissolving and gradually available particles\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003epH behavior:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neutral\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eN-P-K contribution:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Does not supply meaningful nitrogen, phosphorus, or potassium\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eProduct type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Structural plant supplement and silica biostimulant\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRAW Silica is a supplemental input and should be used alongside an appropriate base fertilizer. It does not provide complete plant nutrition.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHow RAW Silica Differs From Potassium Silicate\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eMany liquid silica supplements are manufactured from potassium silicate. Those products can be highly alkaline, add potassium to the fertilizer program, and require careful mixing to prevent dramatic pH changes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRAW Silica uses a biogenic silicon-dioxide source instead. It is formulated to remain pH neutral, does not add potassium, and is compatible with beneficial root-zone microorganisms.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBecause it is a flowable powder rather than a conventional dissolved potassium silicate, some fine particles may remain suspended or settle over time. Agitation helps maintain even distribution in reservoirs and irrigation solutions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHow Silica Supports Plants\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePlants deposit silica within and around cell walls, helping reinforce tissues and improve structural rigidity. This support can contribute to:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eSturdier stalks and stems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStronger lateral branches\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eImproved support for developing flowers and fruit\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMore resilient leaves and plant surfaces\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBetter tolerance to heat, drought, wind, and salinity\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReduced moisture loss during environmental stress\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eImproved overall plant durability\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eSilica is considered a beneficial plant element rather than a complete primary nutrient. Plant response varies by species, growing conditions, and the amount of naturally available silicon already present in the growing medium.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eApplication Rate\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor root-zone irrigation or reservoir use:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eStandard Rate:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Mix ⅛ to ¼ teaspoon per gallon of water.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eInitial Application:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Begin at ⅛ teaspoon per gallon.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eHigher Rate:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Increase toward ¼ teaspoon per gallon when additional structural or stress support is needed.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eFrequency:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Apply as needed according to plant response and the applicable nutrient program.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eGrowth Stage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable during vegetative growth and flowering.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eFinal Flush:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Omit RAW Silica when following a nutrient-free flushing program.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eA lower initial rate is recommended for seedlings, sensitive plants, recirculating systems, and unfamiliar crop varieties.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eRecommended Mixing Instructions\u003c\/span\u003e\u003c\/h3\u003e\n\u003col start=\"1\"\u003e\n\u003cli\u003e\u003cspan\u003eBegin with clean water in the reservoir or mixing container.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMeasure RAW Silica accurately.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMix the powder into a small amount of water to create a thin, even slurry.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAdd the slurry to the main water volume while stirring or circulating.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAllow the solution to mix thoroughly.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAdd base nutrients and other compatible supplements separately.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCheck the completed solution’s EC or PPM and pH.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMaintain circulation or periodically agitate the solution to keep particles evenly distributed.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDo not dry-mix RAW Silica with other fertilizer powders. Never combine it directly with undiluted nutrient concentrates. Add each product separately to water and mix thoroughly between additions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHydroponic and Reservoir Use\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRAW Silica is compatible with hydroponic reservoirs, but it should be treated as a flowable suspension rather than a completely dissolved mineral salt.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eMaintain adequate circulation and inspect the reservoir for settling. In systems using narrow emitters, fine filters, or small spray nozzles, confirm equipment compatibility before adding the product to a large reservoir.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDo not assume visible settling means the product has failed. The manufacturer states that some particles remain within the root zone and release gradually.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSoil and Coco Coir Use\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIn soil and coco coir, RAW Silica may be incorporated through routine irrigation. The flowable particles can remain in the growing medium, creating a continuing source of silica around plant roots.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eMix thoroughly before application so the powder is distributed evenly. Avoid pouring concentrated slurry into one small area of the container.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRAW Silica can be used with mineral fertilizers, organic-based nutrient programs, compost teas, and beneficial microbial inoculants when each input is properly diluted.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eUsing It With Beneficial Microbes\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe biogenic, pH-neutral formulation is designed to be compatible with beneficial bacteria and fungi. Unlike highly alkaline potassium silicate concentrates, it is less likely to expose microbial inoculants to a sudden localized pH increase.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor best results:\u003c\/span\u003e\u003c\/p\u003e\n\u003col start=\"1\"\u003e\n\u003cli\u003e\u003cspan\u003eMix RAW Silica thoroughly into water.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAdd and dilute the base fertilizer.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eConfirm that the solution temperature and pH are appropriate.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAdd microbial inoculants according to their label directions.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNever combine microbial products directly with concentrated fertilizer powders.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFoliar Application\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe manufacturer lists RAW Silica as suitable for foliar programs. Because the current product page does not provide a universal foliar dilution rate, follow the package label or an official RAW foliar recipe.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eCreate a fine suspension, strain it when necessary for the sprayer being used, and test a small section of foliage before treating the entire crop. Apply under low-intensity lighting with adequate airflow.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAvoid spraying open flowers or produce intended for immediate harvest. Clean the sprayer thoroughly after use to prevent suspended particles from drying inside the nozzle.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePlant Stress, Pest, and Disease Expectations\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eSilica-reinforced tissues may support a plant’s natural physical resilience and make leaf surfaces more difficult for some pests or environmental stressors to damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRAW Silica is not a pesticide, fungicide, or disease treatment. It does not replace sanitation, environmental management, airflow, pest monitoring, or an appropriate disease-control program.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eGrowing Media and System Compatibility\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRAW Silica is suitable for:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eSoil gardens\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLiving-soil systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCoco coir\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSoilless growing media\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHydroponic reservoirs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDeep water culture\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFlood-and-drain systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDrip irrigation and fertigation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNutrient film technique\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAeroponics when equipment compatibility is confirmed\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRegular hand-watering programs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eManufacturer-approved foliar applications\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eImportant Usage Notes\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eRAW Silica contains 45% silicon dioxide.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIt is a flowable, water-compatible powder rather than a conventional liquid potassium silicate.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSome particles may remain suspended or settle for gradual root-zone availability.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAgitate or circulate the solution to maintain even distribution.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBegin at the lower recommended rate.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eConfirm compatibility with fine emitters, filters, and spray nozzles.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDo not dry-mix with other fertilizer powders.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRAW Silica is pH neutral but final nutrient-solution pH should still be measured.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e“Biogenic” does not automatically mean certified organic.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThis product is not a pesticide, fungicide, or complete fertilizer.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStore tightly sealed in a cool, dry location away from moisture and direct sunlight.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAvoid breathing airborne powder and keep out of reach of children.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NPK Industries","offers":[{"title":"2 oz","offer_id":44303813181604,"sku":"717915","price":13.02,"currency_code":"USD","in_stock":true},{"title":"8 oz","offer_id":44303813214372,"sku":"717916","price":29.93,"currency_code":"USD","in_stock":true},{"title":"2 lb","offer_id":44303813247140,"sku":"717917","price":78.4,"currency_code":"USD","in_stock":false},{"title":"10 lb","offer_id":44303813279908,"sku":"717918","price":298.0,"currency_code":"USD","in_stock":false},{"title":"25 lb","offer_id":44303813312676,"sku":"717918","price":474.3,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1298\/4199\/products\/NPK-RAW-Silica_-2-oz-NPK-Industries-1670265549.jpg?v=1683704872","url":"https:\/\/www.gardensupplyguys.com\/products\/npk-raw-silica-45-silicon-dioxide","provider":"GARDEN SUPPLY GUYS","version":"1.0","type":"link"}