{"product_id":"vuurvast-beton","title":"Refractory concrete up to 1,650 °C","description":"\u003cp\u003eWith this refractory concrete you can build and repair forges and gas furnaces that are exposed to extreme heat. It withstands temperatures up to 1,650 °C, stores heat well and tolerates fluctuating temperatures. Borax and other forge welding fluxes do not attack it.\u003c\/p\u003e\u003ch2\u003eApplication\u003c\/h2\u003e\u003cp\u003eThe concrete is hydraulically bonded and is mixed with water, about 0.06 litres per kilo. Mix for roughly five minutes. After that you have about twenty minutes of working time before it starts to harden.\u003c\/p\u003e\u003cp\u003eFor good heat storage, keep the layer thickness between 10 and 20 mm. In heavily loaded areas it may be thicker.\u003c\/p\u003e\u003ch2\u003eCuring and drying\u003c\/h2\u003e\u003cp\u003eLeave the concrete in the formwork for one to two weeks, protected against frost and draughts, so that it dries slowly.\u003c\/p\u003e\u003cp\u003eFiring comes next. Heat up the furnace or forge slowly on the lowest flame. As soon as steam escapes, put out the fire and start again once the steam has gone. Repeat this until no more steam is released, then raise the temperature step by step to the maximum operating temperature.\u003c\/p\u003e\u003ch2\u003eSafety\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eProtect the product against moisture during storage\u003c\/li\u003e\n\u003cli\u003eDo not inhale the dust and use respiratory protection if ventilation is insufficient\u003c\/li\u003e\n\u003cli\u003eIn case of skin or eye contact, rinse immediately with plenty of water\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum operating temperature:\u003c\/strong\u003e approx. 1,650 °C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBonding:\u003c\/strong\u003e hydraulic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDensity:\u003c\/strong\u003e approx. 2.59 t\/m³\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater addition:\u003c\/strong\u003e 0.06 litres per kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMixing time:\u003c\/strong\u003e approx. 5 minutes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking time:\u003c\/strong\u003e approx. 20 minutes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended layer thickness:\u003c\/strong\u003e 10 to 20 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResistant to:\u003c\/strong\u003e borax powder and forge welding fluxes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack sizes:\u003c\/strong\u003e 5 kg, 10 kg and 25 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Parrot Shopping","offers":[{"title":"5 kg","offer_id":57980896313727,"sku":"59104001.1650.05DS","price":59.0,"currency_code":"EUR","in_stock":true},{"title":"10 kg","offer_id":57980896346495,"sku":"59104001.1650.10DS","price":96.0,"currency_code":"EUR","in_stock":true},{"title":"25 kg","offer_id":57980896379263,"sku":"59104001.1650.20DS","price":168.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0936\/5366\/4127\/files\/vuurvast-beton-tot-1650-c-in-verpakking.jpg?v=1786638804","url":"https:\/\/parrotshopping.com\/en\/products\/refractory-concrete-up-to-1-650-c","provider":"Parrot Shopping","version":"1.0","type":"link"}