K-Flex USA Certifications

ISO 9001:2015 Certification
The independent certification demonstrates K-FLEX USA’s commitment to quality and affirms that K-FLEX has thoroughly documented its quality processes while meeting the stringent qualifications for the global ISO 9001:2015 standard. 

Certificate # A-843

GREENGUARD® Environmental Institute
Microbial Resistance
Complies with GREENGUARD Test Method, ‘Method for Measuring Microbial Resistance From Various Sources Using Static Environmental Chambers,’ developed to ASTM Standard D 6329-98.

Indoor Air Quality
Certified as low emitting interior building materials, furnishings, and finish systems.  All GREENGUARD® Certified Products have been tested for their chemical emissions performance and can be found in the GREENGUARD® Online Product Guide.

Children and Schools™ Classification
Certified as low-emitting interior building materials, furnishings, and finish systems used in educational, office and other sensitive environments.  Tested for chemical emissions performance according to CA 01350.

Certified Products:
• Insul-Lock® Seam-Seal Pipe
• Insul-Sheet® S2S
• Insul-Tube® 6 Foot (unslit)
• K-Flex Clad®
• K-Flex Duct® Liner Gray 
• K-Fit®

Contact K-FLEX USA for certification documents.


NSF® (National Sanitation Foundation)
The National Sanitation Foundation (NSF) is a non-government agency that certifies products for a wide range of applications and equipment – generally related to food handling or potable water.  K-Flex Clad® WT and Clad® WT NS insulation systems comply with the requirements of NSF Standard 169, “Special Purpose Food Equipment and Devices”.  The purpose of this standard is to establish minimum food protection and sanitation requirements for the materials, design, fabrication, construction, and performance of special purpose food handling and processing equipment, including refrigeration and heating equipment.  

Underwriters Laboratories® is one of the most respected third party laboratories in the world, ensuring that products meet manufacturer's stated physical and performance properties, such as electrical and combustibility characteristics.  K-Flex USA elastomeric insulation products (Insul®, ECO® and K-Flex® brands) have been tested in accordance with test methods under the jurisdiction of UL for flammability characteristics per UL 94 (V-O, 5VA).  These products are UL recognized under K-Flex USA, file #E300774.  K-Flex® Elastomeric Tapes are also listed as meeting UL 94 5V when tested adhered to a metal plate. 

K-Flex USA extruded tubular insulation products (Insul-Tube® and Insul-Lock®) are approved and listed by Factory Mutual Research Corporation.  These products have been subjected to examinations and inspections and have been found to satisfy the criteria for approval and are listed in FMRC's Approval Guide for Building Materials.  The examinations and inspections are performed by FMRC technicians and engineers according to FMRC requirements or recognized national and international requirements.  Continued approval depends on satisfactory field performance and conditions such as periodic unannounced audits of our manufacturing facility.

FMRC has certified the following performance properties of K-Flex USA insulation products:

Thermal Conductivity
Water Vapor Transmission
Flammability Characteristics

In compliance with our approval, every piece of approved insulation displays the FM logo.

Products with this certification have an added antimicrobial agent for extra mildew, bacteria, fungi and mold resistance. 

The "restriction on the use of certain hazardous substances in electrical and electronic equipment" is a European Directive and partner to the WEEE Directive (Waste in Electrical and Electronic Equipment) that controls the disposal and recycling of EEE.  In the United Kingdom, the RoHS Directive is implemented through RoHS Regulations (Statutory Instrument SI2008 No. 37).

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