Basalt rock wool and slag wool are both common insulation material in the market.The quality and price of Basalt rock wool is higher than slag wool,these two kind of materials are easy to confuse peoples,so here will introduce how to distinguish basalt rock wool and slag wool.
Following is the common way to distinguish basalt rock wool and slag wool.
The main raw material of basalt rock wool is basalt, diabase ,dolomite etc.
The main raw material of slag wool is slags.
The acidity coefficient of basalt rock wool is bigger than 1.6,but slag wool is only around 1.2 to 1.6.
Slag wool is unconsolidated,the contend of black shot is high,it’s prickly and itching.
basalt rock wool is yellowish green,the contend of black shot is bare.
In Summary,regarding above three methods,it need to go to factory to see raw materials;It need professional knowledge and rich experience to distinguish.So the main method to distinguish is to test acidity coefficient.