A natural mixture of sodium + calcium + boron is effective as a binder at temp. low to prevent checking A compound of boron and calcium.Chemical formula: Na202CaO5B2O716H2OA quantity of 1 kilo. Grestely BoratSKU: גרסטלי₪81.42PriceVAT Included | משלוח או איסוף עצמי Quantity*Add to CartBuy Now