Mica Flake Vermiculite Insulation

The bright walls of the vermiculite mica flakes are a multitude of screens that reflect and disperse the heat energy transmitted by radiation and make such the insulating material suitable for high temperatures.
Mica flake vermiculite insulation. 16 1 m2k w per metre of insulation. When heated rapidly to a high temperature this crystalline mineral expands into low density accordion like strands. When this mineral is put in an oven it expands like popcorn. 3 expanded and clumped vermiculite looks like popcorn or popcorn ceiling coating colors as above.
Vermiculite is a naturally occurring mineral composed of shiny flakes that resemble mica. In this form vermiculite is a lightweight odorless and fire resistant material that has been used in numerous applications such as. How are mica fil or munn steele vermiculite products identified what should be done about potential vermiculite asbestos hazards ascribed to this vermiculite insulation. When heated to a high temperature flakes of vermiculite expand as much as 8 30 times their original size.
Vermiculite manufacturer manufacturers factory suppliers from china looking to the future a long way to go constantly striving to become the all staff with full enthusiasm one hundred times the confidence and put our company built a beautiful environment advanced products quality first class modern enterprise and work hard. 2 expanded vermiculate same as most kitty litter can be clumps or rock chunk like from grayish white to tan to brownish to golden. This article series explains how to recognize vermiculite building insulation that may contain asbestos fibers. Vermiculite is a mineral mined from the earth composed of shiny flakes that look like mica.
Much of this stuff was later found to contain asbestos and had to be removed because it was a serious health hazard. Since it has an r value of about r 2 per inch it was used for decades as an insulation material. Is the mica expanded so it looks like vermiculite or is it the thin brown to grey flakes that sort of shine. In a previous home i had the thin brown to grey flakes used as attic insulation which was common in the past.
Vermiculite is a naturally mined ore product that is non combustible and fire proof. Vermiculite absorbs water and is fire resistant giving it myriad uses from fluffing up garden soil to soundproofing floors. What about mica fill vermiculite insulation. K value 0 063 w mk.
Expanded vermiculite is lightweight fire resistant and odorless. Vermiculite has many uses such as loose fill insulation for attic spaces block core fill insulation insulation around chimney flues and in gardening applications. The expanded vermiculite is a light weight fire resistant and odorless material and has been used in numerous products including insulation for. Vermiculite is a naturally occurring mineral composed of shiny flakes resembling mica.
Vermiculite photo by courtesy of anthony rich.