Products:Aluminum foil bubble thermal insulation materialAluminum foil bubblethermal insulation materialis a brand-new environmental friendly thermal insulation material. It is made from Aluminum foil or Aluminized film with PE bubble Unlike the conventional insulation material, such as glass fiber,bubble heat insulation materialis 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******************