{"title":"Additives","description":"\u003cdiv class=\"rm-type-pills\" style=\"margin:16px 0 8px;\"\u003e\n\u003ca href=\"\/collections\/raw-materials-and-ceramic-chemicals\" style=\"display:inline-block;padding:8px 18px;margin:0 8px 10px 0;border:1px solid #2b5f8a;border-radius:999px;font-size:15px;line-height:1.3;text-decoration:none;background:#ffffff;color:#2b5f8a;\"\u003eAll Raw Materials\u003c\/a\u003e\u003ca href=\"\/collections\/mason-stains\" style=\"display:inline-block;padding:8px 18px;margin:0 8px 10px 0;border:1px solid #2b5f8a;border-radius:999px;font-size:15px;line-height:1.3;text-decoration:none;background:#ffffff;color:#2b5f8a;\"\u003eMason Stains\u003c\/a\u003e\u003ca href=\"\/collections\/raw-materials-frits\" style=\"display:inline-block;padding:8px 18px;margin:0 8px 10px 0;border:1px solid #2b5f8a;border-radius:999px;font-size:15px;line-height:1.3;text-decoration:none;background:#ffffff;color:#2b5f8a;\"\u003eFrits\u003c\/a\u003e\u003ca href=\"\/collections\/raw-materials-feldspars\" style=\"display:inline-block;padding:8px 18px;margin:0 8px 10px 0;border:1px solid #2b5f8a;border-radius:999px;font-size:15px;line-height:1.3;text-decoration:none;background:#ffffff;color:#2b5f8a;\"\u003eFeldspars\u003c\/a\u003e\u003ca href=\"\/collections\/raw-materials-clays-and-kaolins\" style=\"display:inline-block;padding:8px 18px;margin:0 8px 10px 0;border:1px solid #2b5f8a;border-radius:999px;font-size:15px;line-height:1.3;text-decoration:none;background:#ffffff;color:#2b5f8a;\"\u003eClays and Kaolins\u003c\/a\u003e\u003ca href=\"\/collections\/raw-materials-oxides-and-carbonates\" style=\"display:inline-block;padding:8px 18px;margin:0 8px 10px 0;border:1px solid #2b5f8a;border-radius:999px;font-size:15px;line-height:1.3;text-decoration:none;background:#ffffff;color:#2b5f8a;\"\u003eOxides and Carbonates\u003c\/a\u003e\u003ca href=\"\/collections\/raw-materials-silica-grogs-and-refractories\" style=\"display:inline-block;padding:8px 18px;margin:0 8px 10px 0;border:1px solid #2b5f8a;border-radius:999px;font-size:15px;line-height:1.3;text-decoration:none;background:#ffffff;color:#2b5f8a;\"\u003eSilica, Grogs and Refractories\u003c\/a\u003e\u003ca href=\"\/collections\/raw-materials-additives\" style=\"display:inline-block;padding:8px 18px;margin:0 8px 10px 0;border:1px solid #2b5f8a;border-radius:999px;font-size:15px;line-height:1.3;text-decoration:none;background:#2b5f8a;color:#ffffff;\"\u003eAdditives\u003c\/a\u003e\u003ca href=\"\/collections\/us-gypsum-usg-plaster-information\" style=\"display:inline-block;padding:8px 18px;margin:0 8px 10px 0;border:1px solid #2b5f8a;border-radius:999px;font-size:15px;line-height:1.3;text-decoration:none;background:#ffffff;color:#2b5f8a;\"\u003ePlasters\u003c\/a\u003e\n\u003c\/div\u003e","products":[{"product_id":"darvan-811-pint-rmdar811","title":"Darvan 811 Deflocculant","description":"\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eDarvan 811\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"Pint","offer_id":45105260101954,"sku":"RMDAR811","price":21.35,"currency_code":"USD","in_stock":true},{"title":"Quart","offer_id":67293616341363,"sku":"RMDAR811-QT","price":26.1,"currency_code":"USD","in_stock":true},{"title":"Gallon","offer_id":67293616374131,"sku":"RMDAR811-GAL","price":67.5,"currency_code":"USD","in_stock":true},{"title":"5 Gallon Pail","offer_id":67293616406899,"sku":"RMDAR811-5GAL","price":190.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/large-darvan-811-pint.jpg?v=1693510386"},{"product_id":"nylon-fiber-rmnylfib","title":"Nylon Fiber","description":"\u003cspan\u003e\u003c\/span\u003eNYLON FIBER","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":45105276846402,"sku":"RMNYLFIB","price":14.6,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":67293616111987,"sku":"RMNYLFIB-5","price":69.5,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67293616144755,"sku":"RMNYLFIB-10","price":132.5,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67293616177523,"sku":"RMNYLFIB-25","price":315.0,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67293616210291,"sku":"RMNYLFIB-50","price":521.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/products\/RMNYLFIB-2.jpg?v=1683796551"},{"product_id":"darvan-7-rmdar7","title":"Darvan 7 Deflocculant","description":"\u003cspan\u003e\u003c\/span\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eDARVAN 7: PINT:\u003c\/h2\u003e\n\u003cp\u003eDavan 7: \u003cbr\u003eUsed as a deflocculant .\u003cbr\u003eThere is a great explanation of it at Tony Hansen's Ceramics Materials site:\u003c\/p\u003e\n\u003cp\u003eHe says:\u003cbr\u003e\"Darvan No. 7 is a high molecular weight, long chain polymer that has been used successfully as a general purpose dispersing agent for both ceramic bodies and glazes.\"\u003c\/p\u003e\n\u003cp\u003eQuantity discounts are available up to 5 Gallon: Please call us toll free for pricing: 888.774-2529\u003cbr\u003e\u003c\/p\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eDARVAN® 7-N\u003c\/h2\u003e\nOctober 25, 2005\u003cbr\u003eRTV Product Code: 14395\u003cbr\u003eComposition: Sodium polymethacrylate aqueous solution\u003cbr\u003ePhysical State: Water-white liquid\u003cbr\u003eSpecification Test Method\u003cbr\u003e*pH, 5% Solution 9.0-11.5 T-19\u003cbr\u003e*Specific Gravity 1.13-1.17 T-9A\u003cbr\u003e*Total Solids 24.0-26.0% T-2B\u003cbr\u003e*Viscosity at 25C, Brookfield, 75 cps maximum T-60\u003cbr\u003eLVF, #1 spindle at 60 rpm\u003cbr\u003eGENERAL INFORMATION\u003cbr\u003eTypical values not routinely measured or reported on the Certificate of Analysis.\u003cbr\u003eFoaming Very Slight\u003cbr\u003eStability Stable over a wide pH range\u003cbr\u003eSolubility - Very soluble in aqueous systems.\u003cbr\u003e*Certified Property\u003cbr\u003eUses - For NR and SR latexes. Non-discoloring dispersing agent for preparing high solids dispersions.\u003cbr\u003eDARVAN is a registered trademark of R.T. Vanderbilt Company, Inc.\u003cbr\u003e","brand":"Sheffield Pottery","offers":[{"title":"Pint","offer_id":45113707790658,"sku":"RMDAR7","price":23.3,"currency_code":"USD","in_stock":true},{"title":"Quart","offer_id":67293616243059,"sku":"RMDAR7-QT","price":29.25,"currency_code":"USD","in_stock":true},{"title":"Gallon","offer_id":67293616275827,"sku":"RMDAR7GAL","price":77.5,"currency_code":"USD","in_stock":true},{"title":"5 Gallon Pail","offer_id":67293616308595,"sku":"RMDAR7-5GAL","price":230.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/products\/RMDAR7-2.jpg?v=1683888568"},{"product_id":"sodium-silicate-water-glass-1-quart-rmsodsilw35q","title":"Sodium Silicate (Water Glass)","description":"\u003cspan\u003e\u003c\/span\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eSODIUM SILICATE (WATER GLASS) 1 Quart\u003c\/h2\u003e\n\u003cp\u003eSodium silicate is a useful compound in ceramics. It can be used in combination with soda ash as a deflocculant in terra sigillata and slips.\u003cbr\u003eIt is also used in the crackled texture technique where it is applied to a freshly thrown clay cylinder, allowed to dry, then stretched from the inside of the pot. This creates a highly textured, crackled clay surface.\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\u003cb\u003eFROM DIGITAL FIRE:\u003c\/b\u003e\u003c\/i\u003e\u003cbr\u003eNa2SiO3 Deflocculant, De-flocculant\u003c\/p\u003e\n\u003cp\u003eSodium silicate is a sticky, viscous liquid. \u003cbr\u003eSodium silicate is the most popular deflocculant used in casting slips for many years. It is nearly always used with soda ash. \u003cbr\u003eThe material is effective, reliable and inexpensive. However, it attacks the plaster in molds much more than more modern deflocculants and it is easier to over-deflocculate a slip with sodium silicate.\u003c\/p\u003e\n\u003cp\u003eThere are potassium based deflocculants that are similar to the corresponding sodium ones. They can be employed where the presence of sodium is undesirable. Soda ash is more suitable for deflocculating glazes. In addition, a wide range of organic deflocculants are available as alkali salts of pyrogallic, humic or tannic acids. They have long working ranges and can increase the apparent plasticity of the clay. As noted, their use prolongs mold life compared with sodium silicate and soda ash and they are less prone of over-deflocculation. Tetramethylammoniumhydroxide is also an organic compound that is used where residues from inorganic salts cannot be tolerated. It is a strong base that can even attack glass and quartz.\u003c\/p\u003e\n\u003cp\u003eBecause sodium silicate is sticky and dries hard, it can be used as a glue to bind ceramic particles together, even aggregates. On firing it forms a ceramic bond. Mixtures of sodium silicate and perlite, for example, can be rammed into molds to form shapes that dry with zero shrinkage and have excellent insulating properties. It can be incorporating into bodies to improve their dry strength. As the main ingredient in Magic Water, it can bind leather-hard clay section better than the clay slurry (slip) alone.\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"Pint","offer_id":67293616439667,"sku":"RMSODSILW35P","price":17.15,"currency_code":"USD","in_stock":true},{"title":"Quart","offer_id":45113751765314,"sku":"RMSODSILW35Q","price":19.4,"currency_code":"USD","in_stock":true},{"title":"Gallon","offer_id":67293616472435,"sku":"RMSODSILW35G","price":46.0,"currency_code":"USD","in_stock":true},{"title":"3.5 Gallon Pail","offer_id":67293616505203,"sku":"RMSODSILW35","price":72.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/products\/nophoto_56fb25f4-969a-4f96-a102-afe8401c9c88.gif?v=1683889042"},{"product_id":"vee-gum-rmveegumt","title":"Vee Gum T","description":"\u003cspan\u003e\u003c\/span\u003e\u003ch2 class=\"abz-seo-product\"\u003eVEE GUM T\u003c\/h2\u003eVEE GUM T - is produced by the Vanderbilt Company, Inc. It is a super\nfine (colloidal) purified Bentonite (hydrated Magnesium\nAluminosilicate). Like Bentonite, it is used as a plasticizer (in white\nclay bodies due to its iron-free make-up) and as a suspension agent in\nglazes (typically \u0026lt;2%; see also Bentonite).\u003cbr\u003e\u003cbr\u003e\nVEE GUM CER - is produced by Vanderbilt Company, Inc. It is a mixture\nof Vee Gum T and a medium viscosity Sodium Carboxymethylcellulose\n(SCMS). It is used in glazes to optimize the surface hardness of\nun-fired glazes, to stabilize viscosity, and to enhance glaze\nsuspension.\u003cbr\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":45113759826242,"sku":"RMVEEGUMT","price":29.15,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":67293615849843,"sku":"RMVEEGUMT-5","price":138.75,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67293615882611,"sku":"RMVEEGUMT-10","price":263.5,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67293615915379,"sku":"RMVEEGUMT-25","price":625.0,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67293615948147,"sku":"RMVEEGUMT-50","price":1039.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/large-vee-gum-t-image.jpg?v=1724434560"},{"product_id":"epsom-salts-10-pound-bag","title":"Epsom Salts","description":"\u003cp\u003e \u003c\/p\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eEpsom Salts : 10 Pound Bag\u003c\/h2\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67293615980915,"sku":"RMEPSSAL-1","price":2.55,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":67293616013683,"sku":"RMEPSSAL-5","price":12.0,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":62686312137075,"sku":"RMEPSSAL10","price":23.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67293616046451,"sku":"RMEPSSAL-25","price":55.0,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67293616079219,"sku":"RMEPSSAL-50","price":93.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/products\/nophoto_13095763-e4b1-4236-9dc9-bc95b443a0da.gif?v=1746203110"}],"url":"https:\/\/www.sheffield-pottery.com\/collections\/raw-materials-additives.oembed","provider":"Sheffield Pottery Inc.","version":"1.0","type":"link"}