Perlite insulation board, also known as waterproof perlite insulation board, is made of expanded perlite bulk material as aggregate, adding waterproofing agent and binder for preparation, screening, pressure forming, drying and other processes. Waterproof insulation board.
The perlite insulation board is light in weight and excellent in thermal insulation performance. Fireproof, moisture proof, no deformation modification, no rot, mold, non-toxic, tasteless, good water performance, water repellency rate of up to 98%, construction safety is simple and easy, roof and wall paste can be made of natural ore, good Environmentally friendly.
Perlite insulation boards are widely used in various construction fields and are a promising industry in the future. The dominant use of perlite ore at home and abroad is the production of expanded perlite and its products. At present, the annual output of China’s perlite outer wall insulation board has exceeded 6 million m3, accounting for about 7% of the annual output of China’s thermal insulation materials. It is the most widely used lightweight insulation material in China.
Perlite insulation boards are mainly used for wall and floor of residential, industrial and public buildings, swimming pools, cold storage, boilers and some insulation projects with special requirements for waterproofing.
Construction paste requirements
1 Clean the wall
Remove dust from the outer surface of the insulated exterior wall, remove the projections, level the recess with 1:2.5 cement mortar, and use a wooden trowel to pull the hair.
2 modulated perlite binder
The powder G and the coating S are prepared on the spot according to the weight ratio of perlite = 2:1 (depending on the temperature, the surface condition of the wall to be adhered, the bonding position, the amount of the sputum is slightly fluctuated), and the stirring is uniform. Modulated to be viscous for use. The prepared binder should be used up within 90 minutes. The binder that has begun to cure should not be reused. The amount of perlite binder varies slightly depending on the flatness of the wall.
3 paste hard perlite insulation board
Apply a well-stirred perlite binder to the perforated perimeter of the perlite insulation board. That is, a 50 mm wide and 8 mm thick adhesive frame is applied along the periphery; a point is 70 mm in diameter and 8 mm thick at the center of the adhesive. The four sides of the perlite insulation board are coated with a thin layer. Binder; paste from top to bottom hanging line (upper and lower rows). When pasting the perlite insulation board, it is necessary to lightly press the surface to make the surface flat, and the adhesive at the seam is extruded and exceeds the surface of the perlite perlite by about 2 mm. The thickness of the adhesive layer of the perlite insulation board and the wall is preferably 3 to 6 mm, and the bonding area should be greater than 80%. The thickness of the adhesive layer between the perlite insulation boards is preferably 1-2 mm.
Thermal conductivity (w/m.k)≤0.076
Degree of compression (Kpa)≥474
Weight moisture content (%)≤5
Drowning rate (%)99.2
Operating temperature range (°C)40-600 ° C