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3M™ Permeable Liquid Flashing Membrane 3015LF Technical Data June 2019 Product Description 3M™ Permeable Liquid Flashing Membrane 3015LF is a commercial grade Silyl Terminated Polyether (STPE) based vapor permeable liquid flashing that is designed for detailing windows, doors, pipe penetrations and other building fenestrations. It can be applied on vertical, horizontal, or overhead surfaces. It is designed to be applied to common building substrates that are dry or damp at temperatures from 25° to 100°F. Combining 3M Permeable Liquid Flashing Membrane 3015LF with 3M™ Vapor Permeable Air Barrier 3015VP as a wall membrane creates a vapor permeable building system. Product Construction Composition Color Packaging STPE Liquid base membrane White 2 gallon pail Features • 25 Perms Desiccant Method (A) - ASTM E96

  • VOC content< 100 g/L
  • Performs well in cold temperatures as well as high heat and humidity conditions
  • Adheres to damp surfaces
  • 12 month UV resistance
  • Exceeds AAMA 714 Voluntary Specification for Liquid Applied Flashing Used to Create a Water-Resistive Seal around Exterior Wall Openings in Buildings
  • Non-shrinking
  • Final cured product is compatible with many building sealants: No adverse reaction with synthetic rubber, butyl, polyurethane, silicone and silane terminated hybrid sealants.
  • Can be applied from 25° to 100°F (- 4° to 38°C)
  • Service temperature from -40° to 240°F (- 40° to 116°C)
  • Excellent adhesion to concrete, concrete block, steel, exterior gypsum sheathing, and wood without the use of any primer.
  • Liquid Flashing provides a unique combination of both cold and hot temperature adhesion to most substrates, which can extend the construction season in many climates.
  • Fast curing technology which cures quickly – rainproof in 60 minutes; full cure in 24 hours.
  • Nail Sealability: Passes ASTM E331/547 (per AAMA 711-05, Annex both before and after thermal cycling.

3M™ Permeable Liquid Flashing Membrane 3015LF When referencing the AAMA 200-12 (windows) and/or 400-13 (doors) standards, the 3M solutions for these standards include:

  • 3M™ Permeable Liquid Flashing Membrane 3015LF, an STPE-based membrane, brush/roller- grade liquid flashing
  • 3M™ Adhesive Sealant 740UV, a STPE-base, gun-grade, non-sag waterproofing sealant Together, these STPE-based materials allow for wet-on-wet applications and minimize downtime. Application Ideas •Window openings
  • Pipes and penetrations
  • I-beams and posts
  • Complex details
  • Details that are difficult to flash with a sheet membrane Typical Physical Note: The following technical information and data should be considered Properties representative or typical only and should not be used for specification purposes. 90° Peel Adhesion Test Procedure Exposures and peel testing were conducted in accordance with ASTM D4541. SURFACE RESULTS Concrete Lbs. /inch (N/25 mm) Initial – 72 Hrs. RT 12.73 (56.6) After Thermal Cycling 11.87 (52.8) Aging 13.40 (59.6) Exterior Grade Gypsum Board Initial – 72 Hrs. RT *2.90 (12.9) After Thermal Cycling *3.00 (13.3) Aging *1.60 (7.1) * Separated fiberglass facer mat from gypsum core. Air Permeance of membrane: @ 75 Pa (0.3 in/wg.) < 0.0003 L/s/m2 (< 0.00006 cfm/ft2 ) ASTM E2178 Air Leakage of assembled wall: Pull Adhesion – Concrete Min 110 kPa 1137.6 kPa ASTM D4541 Pull Adhesion – Method B Exterior Gypsum Board Min 110 kPa 339.0 kPa ASTM D4541 Water Resistance: 55 cm (2.16 inches) of water for 5 hours PASS AATCC 127 Surface Burning Characteristics: Flame Spread Index Smoke Developed Value Rating Class A ASTME84 ASTME84 ICC AC 38 Tensile Strength (coated membrane) Elongation at Break psi ASTM D412 ASTM D412

3M™ Permeable Liquid Flashing Membrane 3015LF Wood Initial – 72 Hrs. RT 7.98 (35.5) After Thermal Cycling 11.30 (50.3) Aging 11.35 (50.5) Steel Initial – 72 Hrs. RT 14.48 (64.4) After Thermal Cycling 13.75 (61.1) Aging 11.78 (52.5) Application Instructions SURFACE PREPARATION

  • To obtain the best adhesion, 3M™ Permeable Liquid Flashing Membrane 3015LF should be applied when temperatures range from 25° to 100°F (-4° to 38°C).
  • Surfaces should be clean, free from dirt and debris and have not absorbed water.
  • Surfaces should be free of any damaged, unsupported areas, sharp protrusions or voids.
  • Concrete must be cured a minimum of 7 days before application.
  • Block or brick walls should have mortar joints stuck flush.
  • While it can be applied as low as 25°F (-4°C) surfaces must be clear of snow, ice or frost.
  • Must be lapped a minimum of 2" with air barrier. MIXING Thoroughly mix the entire container of liquid flashing with a slow-speed (200 to 400 rpm) mechanical mixer (electric drill with a mixing paddle) for two minutes or stick stir until the liquid flash has a consistent white color. APPLICATION Fill gaps and cracks exceeding 1/8" width with 3M™ Adhesive Sealant 740 UV, and tool the surface flush and smooth. Fill gaps exceeding ½"width with closed cell foam backer rod or a foam seal. Then with 3M™ Adhesive Sealant 740 UV, and tool the surface flush and smooth. After mixing the liquid flash, apply to a clean prepared surface using a at least a 3/8" (8.5 mm) nap roller with rounded edges or 2″ (50 mm) or wider brush. 3015LF can also be spray applied. Apply a minimum of 50 mils (1.27 mm) of liquid flashing onto the horizontal pan or sill surface and a minimum of 10 mils (0.254 mm) of liquid flashing onto the vertical surface. Test the thickness using a wet mil gauge. Make sure material contains of no pinholes and is void-free and undamaged. Apply pail cover when not in use to prevent the liquid flash from skinning over. Extend surface preparation a minimum of 2" (50 mm) beyond the termination of the flashing.

3M™ Permeable Liquid Flashing Membrane 3015LF STUCCO ADHESION Adhesion of stucco to 3M™ Permeable Liquid Flashing Membrane 3015LF has been tested in lab conditions using washed Mason Sand broadcast until rejection. Pull adhesion of >30 lbf/sqin was achieved. Adhesion will vary with substrate condition and type of sand. Adhesion testing must be done by installation contractor with actual lots of sand to ensure satisfactory results prior to application. Storage Store in a clean, dry place. Temperature of 40° to 80°F (4° to 26°C) and 40 to 50% R.H. are recommended. Shelf Life To obtain best performance, use this product within 12 months from date of manufacture. Use opened pail within three weeks of open date. Technical Information The technical information, guidance, and other statements contained in this document or otherwise provided by 3M are based upon records, tests, or experience that 3M believes to be reliable, but the accuracy, completeness, and representative nature of such information is not guaranteed. Such information is intended for people with knowledge and technical skills sufficient to assess and apply their own informed judgment to the information. No license under any 3M or third party intellectual property rights is granted or implied with this information. Product Selection and Use Many factors beyond 3M’s control and uniquely within user’s knowledge and control can affect the use and performance of a 3M product in a particular application. As a result, customer is solely responsible for evaluating the product and determining whether it is appropriate and suitable for customer’s application, including conducting a workplace hazard assessment and reviewing all applicable regulations and standards (e.g., OSHA, ANSI, etc.). Failure to properly evaluate, select, and use a 3M product and appropriate safety products, or to meet all applicable safety regulations, may result in injury, sickness, death, and/or harm to property. Warranty, Limited Remedy and Disclaimer Unless a different warranty is specifically stated on the applicable 3M product packaging or product literature (in which case such warranty governs), 3M warrants that each 3M product meets the applicable 3M product specification at the time 3M ships the product. 3M MAKES NO OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OR CONDITION OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR ARISING OUT OF A COURSE OF DEALING, CUSTOM, OR USAGE OF TRADE. If a 3M product does not conform to this warranty, then the sole and exclusive remedy is, at 3M’s option, replacement of the 3M product or refund of the purchase price. Limitation of Liability Except for the limited remedy stated above, and except to the extent prohibited by law, 3M will not be liable for any loss or damage arising from or related to the 3M product, whether direct, indirect, special, incidental, or consequential (including, but not limited to, lost profits or business opportunity), regardless of the legal or equitable theory asserted, including, but not limited to, warranty, contract, negligence, or strict liability. ISO 9001 This Industria l Adhesive s and Tapes Division product was manufacture d under a 3M quality system registered to ISO 9001 standards. Industrial Adhesives and Tapes Division 3M Center, Building 225-3S-06 St. Paul, MN 55144-1000 800-362-3550 • 877-369-2923 (Fax) www.3M.com/airbarrier 3M is a trademark of 3M Company. ©3M 2019 70-0716-9857-8 (9/18)