{"product_id":"darvan-7","title":"Darvan 7","description":"\u003csection class=\"span-full\" id=\"description\"\u003e\n\u003cdiv class=\"content\" id=\"desc\"\u003e\n\u003cdiv class=\"text-product-desc\"\u003e\n\u003ch4\u003e1 Pint\u003c\/h4\u003e\n\u003cbr\u003eDarvan 7 is a deflocculant that is similar to sodium silicate. However, unlike sodium silicate, Darvan 7 does not erode plaster molds. As a deflocculant, Darvan 7 weakens the electrical attraction between clay particles and thus acts as a thinning agent in slips and as a general dispersing agent for clay bodies and glazes. It is mainly used to enhance the fluidity of casting slips and maintain or slow the shrinkage rate. Darvan 7 is typically preferred with porcelains and high iron content clay, while Darvan 811 can be used for stoneware, high fire slips and red low fire slips.\u003cbr\u003e\u003cbr\u003eSlips that are prepared with Darvan 7 show little tendency to thicken on standing, which is why it is often used in glazes. Darvan 7 can also be added to joining slip, which is ideal because it allows one to use less water and results in less shrinkage at attachment points.\u003cbr\u003e\u003cbr\u003eDarvan is not a suspension agent, and will not prevent your glaze from settling. It will make settling worse. \u003ca href=\"https:\/\/www.theceramicshop.com\/product\/6011\/magnesium-sulfate-epsom-salt\/\"\u003e\u003cu\u003e\u003cspan color=\"#b22222\" style=\"color: #b22222;\"\u003eEpsom Salts\u003c\/span\u003e\u003c\/u\u003e\u003c\/a\u003e can be used to help glazes stay is suspension. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eNote:\u003c\/b\u003e Darvan will be damaged if frozen. Therefore, we suggest caution if ordering for shipment to cold regions during the Winter seasons. Please note Darvan products do have a shelf life. Darvan 7 has a 2-year shelf life.\u003c\/div\u003e\n\u003cdiv id=\"productFooterElements\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"span-full\" id=\"sds\"\u003e\u003cbutton type=\"button\" class=\"collapsible active\" data-target=\"#sdsinfo\"\u003eSDS\/Product Info Sheet\u003c\/button\u003e\n\u003cdiv class=\"content\" id=\"sdsinfo\"\u003e\u003cobject data=\"https:\/\/www.theceramicshop.com\/downloads\/SDSinfo\/msds-laguna-darvan-7.pdf\" id=\"contentarea4\"\u003e\u003c\/object\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"The Ceramic Shop","offers":[{"title":"Default Title","offer_id":43794723471434,"sku":null,"price":6.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0601\/9062\/1770\/files\/IMG-7761.jpg?v=1783547160","url":"https:\/\/theclaydept.com\/products\/darvan-7","provider":"The Clay Department","version":"1.0","type":"link"}