USES: Stego Wrap Class A is used as an exceptional vapor retarder.
COMPOSITION: Stego Wrap Class A is a multi-layer plastic extrusion manufactured with only high grade prime, virgin,
polyolefin resins.
ENVIRONMENTAL FACTORS: Stego Wrap Class A can be used in systems for the control of soil gases (radon, methane),
soil poisons (oil by-products) and sulfates.
4. TECHNICAL DATA
TABLE 1: PHYSICAL PROPERTIES OF STEGO WRAP 10-MIL CLASS A VAPOR RETARDER
PROPERTY TEST RESULTS
Under Slab Vapor Retarders ASTM E1745 Class A, B & C – Standard Specification for Water Vapor Retarders
Used in Contact with Soil or Granular Fill under Concrete Slabs Exceeds Class A, B & C
Water Vapor Permeance ASTM F1249 – Test Method for Water Vapor Transmission Rate Through Plastic
Film and Sheeting Using a Modulated Infrared Sensor 0.0254 perms
Permeance After Conditioning ASTM E154 Section 8, F1249 – Permeance after wetting, drying, and soaking 0.0258 perms
(ASTM E1745 ASTM E154 Section 11, F1249 – Permeance after heat conditioning 0.0259 perms
Sections 7.1.2 - 7.1.5) ASTM E154 Section 12, F1249 – Permeance after low temperature conditioning 0.0241 perms
ASTM E154 Section 13, F1249 – Permeance after soil organism exposure 0.0245 perms
Puncture Resistance ASTM D1709 – Test Method for Impact Resistance of Plastic Film by
Free-Falling Dart Method 3,006 grams
Tensile Strength ASTM D882 – Test Method for Tensile Properties of Thin Plastic Sheeting 50.6 lbf/in
Thickness 10 mil
Roll Dimensions width x length: 14' x 210'
area: 2,940 ft2
Roll Weight 140 lb
Note: perm unit = grains/(ft2*hr*in-Hg)
STEGO® WRAP 10-MIL CLASS A VAPOR RETARDER
A STEGO INDUSTRIES, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: MAR 3, 2022
DATA SHEETS ARE SUBJECT TO CHANGE. FOR MOST CURRENT VERSION, VISIT STEGOINDUSTRIES.COM
(877) 464-7834 | stegoindustries.com
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©2022 Stego Industries, LLC. All rights reserved.
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5. INSTALLATION
UNDER SLAB: Unroll Stego Wrap Class A over an aggregate, sand or tamped earth base. Overlap all seams a minimum
of 6 inches and tape using Stego® Tape or Stego® Crete Claw® Tape. All penetrations must be sealed using a combination