Extruded  polystyrene foam board, referred to as Extrusion board, also known as  XPS board. Class B1 Extrusion board is made of polystyrene resin and  polymer, which is heated and mixed together, and is injected with  catalyst and flame retardant. After extrusion, the continuous  closed-cell foamed rigid foam plastic sheet is extruded. The inner part  of the sheet is an independent closed-cell structure. It is a kind of  environmental protection protection with excellent properties, such as  flame-retardant, high compression resistance, low water absorption,  moisture-proof, air-proof, light weight, corrosion resistance,  ultra-anti-aging (almost no aging for long-term use), low thermal  conductivity and so on. Warm materials.
Class B1 extruded board is widely used in dry wall insulation, plane  concrete roof and steel structure roof insulation, low-temperature  storage ground, parking platform, Airport runway, highway and other  fields of moisture insulation, control of ground frost heave, is the  construction industry cheap, high-quality insulation, moisture-proof  materials.

main application

1, widely used for wall insulation, flat concrete roof and steel roof insulation.
2. For low temperature storage ground, parking platform, Airport runway, highway and other fields of moisture insulation.
 

Performance characteristics

Excellent thermal insulation

Bleseed  B1 grade extrusion board has the characteristics of high thermal  resistance, low linearity and low expansion ratio. The closed-cell rate  of its structure reaches more than 99%, forming a vacuum layer, avoiding  air flow and heat dissipation, ensuring its insulation performance is  durable and stable. Compared with the 80% closed-cell rate of foamed  polyurethane, the leading advantage is self-evident. Practice has proved  that 20 mm thick XPS Extrusion insulation effect is equivalent to 50 mm  thick foamed polystyrene, 120 mm thick cement perlite. Therefore, this  material is the best choice for building insulation at present.
Excellent high compressive strength

Because  of the special structure of the extruded board, its compressive strength  is very high and impact resistance is very strong. According to the  different types and thickness of the extruded board, its compressive  strength reaches 150-500 Kpa and can bear the ground load of various  systems. It is widely used in geothermal engineering, expressway,  Airport runway, square ground, large-scale cold storage and car interior  decoration and protection. Wen and other fields.

High quality water repellency and moisture resistance

Water  absorption is an important parameter for measuring thermal insulation  materials. After absorbing water, the insulation performance of the  insulation material decreases. At low temperature, the water sucked in  is easy to freeze, destroying the structure of the insulation material,  thus reducing the compressive and thermal insulation performance of the  board. Because the polystyrene molecular structure itself does not  absorb water, the plate molecular structure is stable, no gap, to solve  other materials leakage, penetration, frosting, condensation and other  problems.
Light weight and easy to use

The  complete closed-cell foaming chemical structure and honeycomb-like  physical structure of Blessed B1 grade extrusion board make it light  weight and high strength, easy to cut, transport, and easy to break and  install.
Good stability and corrosion resistance.

The  chemical properties of the extruded heat preservation board are  extremely stable, and it will not degrade due to water absorption and  corrosion. It can still maintain its superior performance in high  temperature environment. According to the relevant information, the  extruded heat preservation board can remain excellent even after 30-40  years of use. Different properties, and will not decompose or mildew,  there is no volatilization of toxic substances.
Product environmental performance

Blessed  B1 grade extrusion board has been tested by the relevant departments of  the state with stable chemical performance, no volatile harmful  substances, harmless to human body, and high fire-proof grade,  non-flammable and so on. The raw materials for production are  environmentally-friendly materials without any industrial pollution. The  product is environmentally-friendly building materials. 

Physical property

Standard Specification（mm）

Thermal conductivity (90 days after production)