Are expanded perlite and expanded vermiculite the same substance?What's the difference between them? What's the matter?
Their raw materials are different, but they are expanded by heating at high temperature. They are generally used in the roof insulation, gardening, soilless cultivation, etc., but now the amount of expanded perlite is relatively large.
From the first color: perlite is white, similar to the bubble, very light. Vermiculite yellow, relatively small particles, a bit like a worm.These are used in the tunnel fire retardant coating inside, is the raw material of this kind of product, play the role of thermal insulation, also used in vegetable greenhouses inside
Expanded perlite: a natural silicic lava volcano non-metallic minerals, including perlite, pitchstone and obsidian, but three kinds of crystal water content are different. At the 1000 to 1300 degrees under the conditions of the rapid expansion of the volume of 4 to 30 times, it is referred to as the expanded perlite
Vermiculite: Color: yellow, yellowish brown. Vermiculite after calcination, the volume can be expanded by several times, the volume expansion after the vermiculite called vermiculite.
