GENERAL CATALOG - K-Flex USA

K-FLEX DUCT ® LINER GRAY TECHNICAL INFORMATIONUL 94(Recognition No. E300774)Refer to K-Flex USA L.L.C.Made in USAContains a ProtectiveAntimicrobial AgentDESCRIPTIONK-FLEX Duct ® Liner Gray is a CFC- andHCFC-free, closed cell, flexible elastomericthermal and acoustical insulation. It is grayin color and supplied in rolls up to 60” widefrom 1/2” to 2” thickness*. It is supplied eitheras S2S (Skin 2 Sides) or with a factoryappliedscrim-reinforced acrylic adhesive onthe opposite side.**K-FLEX Duct ® Liner Gray is non-porous,fiber-free and resists mold growth. AnEPA-registered antimicrobial agent isincorporated into the product providingadditional protection against mold, fungaland bacterial growth. K-FLEX Duct ® LinerGray is GREENGUARD ® certified as a lowVOC material, meeting the requirements forthe “Children & Schools” and “Indoor AirQuality” classifications.Features of PSA**: tear- and moistureresistantpolyolefin easy release liner;continuous reinforcing scrim that preventsstretching of insulation and improves peelstrength.APPLICATIONSK-FLEX Duct ® Liner Gray is used to retardheat gain / loss and prevent condensationor frost formation on equipment or ducts.K-FLEX Duct ® Liner Gray is recommended forapplications ranging from -40°F to 200°F(-40°C to 93°C).K-FLEX Duct ® Liner Gray can be used asduct and air handling equipment liner, andis R-8 at 2” thickness. R-values designatethe thermal resistance value of a material.K-FLEX Duct ® Liner Gray with PSA**reduces installation time and minimizes theamount of solvent-based contact adhesivesrequired, making it ideal for new and retrofitapplications. The scrim reinforcementreduces the tendency to stretch the sheetinsulation during installation and improvesthe peel strength of the material.Thickness recommendations for K-FLEXDuct ® Liner Gray have been calculated tocontrol condensation on cold surfaces. (Referto the table on the next page for specificrecommendations.)INSTALLATIONK-FLEX Duct ® Liner Gray should be appliedto clean, dry ductwork and equipment.Adhesive should be applied to all compressionjoints and used on all butt edges. Applymechanical fasteners in accordance withSMACNA guidelines.When air stream velocities exceed 4,000 FPM(20.3m/second), metal nosing is recommendedto be applied to every leading edge.Nosing may be formed, channeled or zeeattachedon duct by screws, rivets or welds.K-FLEX Duct ® Liner Gray is acceptable foruse in duct or plenum applications, meetingthe requirements of NFPA 90A and 90B.RESISTANCE TO MOISTUREVAPOR FLOWThe closed cell structure and unique formulationof K-FLEX Duct ® Liner Gray effectivelyretards the flow of moisture vapor, and isconsidered a low transmittance vapor retarder.For most applications, K-FLEX Duct ®Liner Gray needs no additional protection.Ideal Applications include air handlingsystems in schools, hospitals, hotels, publicbuildings and clean/processing rooms.* PSA available up to 1-1/2” thickness.**All thicknesses are nominal.PAGE 81