K-FLEX LS Sheet S2S
Products
- K-Flex LS Tube
- K-Flex LS Self-Seal
- K-Flex LS 3 Foot Self-Seal
- K-Flex LS Tube White
- K-Flex LS Sheet S2S
- K-Flex LS w/ PSA
- K-Flex Product Home
Made in America
Designed for the professional contractor
Description
K-FLEX™ LS SHEET insulation is an environmentally friendly, CFC-free, flexible elastomeric thermal insulation. It is black in color and supplied as flat sheets (36" x 48") in standard thicknesses of 1/8" through 2". It is supplied skin two sides in 1/4" and above. K-FLEX™ LS SHEET is also available in rolls, with a standard roll width of 48". K-FLEX™ LS SHEET key physical properties are approved through supervision by Factory Mutual Research Corporation. This product is non-porous, fiber free and resistant to mold and mildew. The Bio-Guard™ antimicrobial system provides added protection against mold, fungal and bacterial growth. The active ingredient in Bio-Guard™ is registered with the EPA.
Applications
K-FLEX™ LS SHEET insulation is used to retard heat gain and prevent condensation or frost formation on cold equipment, ducts, or large O.D. pipes. It also effectively retards heat loss when used on hot equipment, ducts, or large pipes. K-FLEX LS SHEET can be used as duct wrap covering. K-FLEX™ LS SHEET is recommended for applications ranging from -297°F to 220°F (-182°C to 104°C) when used as pipe insulation where only the seams and butt joints are glued. When full adhesion application is used, the upper limit is 200°F (93°C).
K-FLEX™ LS SHEET has a very tough skin which withstands tearing, rough handling and severe environmental conditions, and yet is quite flexible for easy installation. K-FLEX™ LS SHEET has superior cold weather flexibility.
K-FLEX™ LS SHEET thickness has been calculated to control condensation on cold surfaces. Refer to the Submittal Sheet for specific recommendations.
Installation
When K-FLEX™ LS SHEET insulation is applied to ductwork and equipment, use 100% coverage of an approved contact adhesive. With a contact adhesive, both surfaces to be joined should be coated and then joined after the adhesive is dry to the touch. Compression joints with adhesive applied should be used on all butt edges. K-FLEX™ LS SHEET is also available with pre-applied pressure sensitive adhesive (PSA) with easy to use release liner. Refer to specific installation instructions.
Outdoor Applications
For optimum performance, outdoor applications require R-374 Protective Coating or other recommended protective coating, cladding or jacketing. For more detailed information refer to the Installation Guides.
Resistance to Moisture Vapor Flow
The expanded closed-cell structure and unique formulation of K-FLEX™ LS SHEET an effective insulator and provides effective moisture vapor resistance. For most indoor applications, K-FLEX™ LS SHEET needs no additional protection.
Additional vapor barrier protection may be necessary for K-FLEX™ LS SHEET when installed on low temperature surfaces that are exposed to continuous high humidity.
Flame and Smoke Rating
K-FLEX™ LS SHEET insulation in wall thicknesses of 1-1/2" (38 mm) and below has a flame spread rating of 25 or less and a smoke development rating of 50 or less as tested by ASTM E 84 Method of Testing entitled: “Surface Burning Characteristics of Building Materials.”
K-FLEX™ LS SHEET is acceptable for use in plenum applications meeting the requirements of NFPA 90A/B.
Numerical flammability ratings alone may not define the performance of products under actual fire conditions. They are provided only for use in the selection of products to meet limits specified, when compared to a known standard.
Specification Compliance
ASTM C 534 Type 2 (Sheet), Grade 1
ASTM D 1056-00-2C1
New York City MEA 186-86-M Vol. IV
USDA Requirements
UL 94-5V Flammability Classification (Recognition No. R300774)
ASTM E 84 1-1/2" 25/50-tested according to UL 723 and NFPA 255
Complies with requirements of CAN/ULC S102-M88
NFPA No. 101 Class A Rating
Meets requirements of NFPA 90A Sect. 2.3.3 for Supplementary Materials for Air Distribution Systems
Meets requirements of ASTM C 411 (Test Method for Hot Surface Performance of High Temperature Thermal Insulation)
Meets requirements of UL 181 sections 11.0 and 16.0 (Mold Growth/Air Erosion)
R8 Sheet meets R-Value requirements of the International Energy Conservation Code for Outdoor Ductwork.
Mil-P-15280, Form S (Sheet)