{"product_id":"mortaclay-40d-mortar-30-lb","title":"RTH-USA MORTACLAY-40d Mortar 30 lb","description":"\u003cp\u003eMORTACLAY-40d is a high-performance fireclay refractory mortar for laying, bonding, and repairing firebrick in fireplaces, pizza ovens, kilns, furnaces, fireboxes, and other high-temperature masonry projects. This 30 lb dry mix is made from primary refractory raw materials and develops a strong ceramic bond after proper firing.\u003c\/p\u003e\n\u003cdiv class=\"wf-automatic-savings-note\"\u003e\n\u003ch3\u003eAutomatic savings at checkout\u003c\/h3\u003e\n\u003cp\u003eOrders over $300 receive 2% off automatically. Sign in or create an account before checkout to receive 1% off, or 3% off on orders over $300.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/account\/login\"\u003eSign in or create an account\u003c\/a\u003e before checkout to unlock registered customer savings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eQuick specs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial type:\u003c\/strong\u003e dry fireclay refractory mortar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage size:\u003c\/strong\u003e 30 lb bag\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature use:\u003c\/strong\u003e high-temperature refractory masonry, up to 3000°F when used as directed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e add clean water and mix to a workable mortar consistency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest for:\u003c\/strong\u003e firebrick joints, masonry repairs, refractory linings, ovens, fireplaces, kilns, and furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to choose it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUse MORTACLAY-40d when you need a dry mortar for setting or repairing refractory brick.\u003c\/li\u003e\n\u003cli\u003eFor small patching or ready-to-use adhesive work, R-Mort or R-CEM may be easier to apply.\u003c\/li\u003e\n\u003cli\u003eCoverage depends on brick size, joint thickness, and the condition of the surface.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eShipping note\u003c\/h3\u003e\n\u003cp\u003eThis is a heavy refractory material, and shipping cost can vary by destination. Use the cart shipping preview before checkout. For larger quantities or orders over 700 lb, please review our \u003ca href=\"\/pages\/shipping-bulk-orders\"\u003eShipping \u0026amp; Bulk Orders\u003c\/a\u003e page or contact us before placing the order.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this ready to use?\u003c\/strong\u003e\u003cbr\u003eNo. This is a dry mix. Add clean water and mix before application.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used with firebricks?\u003c\/strong\u003e\u003cbr\u003eYes. It is designed for refractory masonry and firebrick work.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I buy multiple bags?\u003c\/strong\u003e\u003cbr\u003eYes. For heavy or bulk orders, contact us so we can help check the best shipping option.\u003c\/p\u003e","brand":"Refractory Trading House","offers":[{"title":"Default Title","offer_id":44181157314678,"sku":"B0HGLT56BV","price":33.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0650\/2573\/6822\/files\/photo_2026-08-2612.25.05.png?v=1789370797","url":"https:\/\/wefractory.com\/products\/mortaclay-40d-mortar-30-lb","provider":"Wefractory","version":"1.0","type":"link"}