Products:thermal insulation materialthermal insulation material is a brand-new environmental friendly thermal insulation material. It is made from Aluminum foil or Aluminized film with PE bubble or PE Foam. Unlike the conventional insulation material, such as glass fiber,building material is a new insulation material does not cause any harm to human health and environment.Such material combination provides excellent functions of thermal reflection, heat insulation and anti-radiation. So it is an economical solution for a wide range of industrial,manufacturing and consumer applications, such as for industrial sheds, commercial buildings, home insulation, under wood or laminated flooring, roof insulation, carpet underlay, pipe and vent-pipe jacket and construction. Characteristics: 1) Smellless and non-toxic. 2) Clean, thin and lightweight. 3) Outstanding safety and environmental benefits. 4) Moisture-proof, heat preservation and energy conservation. 5) Easy to install, high efficiency. 6Cost-effective and versatile. bubble size 10mmX4mm 10mmx2.5mm 20mmx7mm 25mm*8mm ect (Customs size roll size):1.2mx40m/roll 48inchx125inch/roll We can also replace the foil with metallized polyester for a more economical product Technical parameters: Thickness4mmReflectivity97 %temperature range-50 degrees C to 80 degrees CSecurityNon-toxicity,non-corrosivenessDurabilityIt will not degrade over time.Mold and mildewNo growthLinear shrinkageNoneTensile strength (MD)13.43 MPaTensile strength (TD)14.58MPaWater Vapour Transmission0.012 G/M2 KPAWeight130G/M2 Structure: AL/bubble +bubble/AL AL/big bubble/AL AL/white fire retardant bubble/AL with blue color,ect AL/white anti flaming bubble/AL with blue color AL/white anti flaming bubble/woven cloth/AL(bubble:20mmx7mm) ****************Normal size: 1.2m W*40 m L******************