3M Permeable Liquid Flashing Membrane 3015LF User guide

Type
User guide

3M Permeable Liquid Flashing Membrane 3015LF is a commercial grade Silyl Terminated Polyether (STPE) based vapor permeableliquid flashing that is designed for detailing windows, doors, pipe penetrations and other building fenestrations. It can be applied on vertical or overhead surfaces. It is designed to work on common building substrates that are dry or damp at temperatures from 25° to 100°F. 3M™ Permeable Liquid Flashing Membrane 3015LF is rainproof after 60 minutes and can be exposed to direct sunlight for up to 12 months

3M Permeable Liquid Flashing Membrane 3015LF is a commercial grade Silyl Terminated Polyether (STPE) based vapor permeableliquid flashing that is designed for detailing windows, doors, pipe penetrations and other building fenestrations. It can be applied on vertical or overhead surfaces. It is designed to work on common building substrates that are dry or damp at temperatures from 25° to 100°F. 3M™ Permeable Liquid Flashing Membrane 3015LF is rainproof after 60 minutes and can be exposed to direct sunlight for up to 12 months

2" min.
50 mils
10 mils
July 2019
Installation Guide
3M
Permeable Liquid Flashing
& Air Barrier
Membrane 3015LF
1
4A 4B 5
Tools needed — 3M
Permeable Liquid Flashing
Membrane 3015LF, roller, brush, mix paddle,
thickness gauge, caulk gun, 3M
Adhesive Sealant
740UV and spatula.
When eld is applied rst, lap 3M
Permeable Liquid
Flashing Membrane 3015LF 2" over wall membrane.
Prep window opening. Caulk gaps, ensure all mortar
joints are struck ush. Gaps wider than 1/8" must be
lled with 3M
Adhesive Sealant 740UV prior to applying
3M
Permeable Liquid Flashing Membrane 3015LF.
Mix for 2–3 minutes or until evenly mixed.
3M
Permeable Liquid Flashing Membrane & Air Barrier Membrane 3015LF is a commercial grade Silyl Terminated Polyether (STPE)
based vapor permeable
liquid ashing 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 work on common building substrates that are dry or
damp at temperatures
from 25° to 100°F. Concrete must be cured at least 7 days prior to applying. 3M
Permeable Liquid Flashing
Membrane 3015LF is
rainproof after 60 minutes and can be exposed to direct sunlight for up to 12 months. 3M
Permeable Liquid
Flashing Membrane
3015LF can be applied directly to uncured STPE-based sealants. 3M
Permeable Liquid Flashing Membrane
3015LF is compatible with
non-STPE-based sealants, but these must be fully cured prior to applying. 3M
Permeable Liquid Flashing
Membrane 3015LF must be
mixed thoroughly prior to applying. It can be applied with a roller, brush or sprayer.
When rough opening is ashed rst, adhere
3M
Air Barrier with Permeable Backing 3015VP
overtop of liquid ash then caulk bottom and sides
with 3M
Adhesive Sealant 740UV. Overlap eld
membrane minimum 2" over 3M
Permeable Liquid
Flashing Membrane 3015LF. All sides and reverse
laps must be caulked.
Test wet lm thickness with gauge. Substrate
texture and conditions dictates minimum thickness.
There can be no visible pinholes. Minimum 10 mils
for sides and headers and 50 mils minimum on sills
and horizontal surfaces.
2 3
3M Industrial Adhesives and Tapes Division
3M Center, Building 225-3S-06
St. Paul, MN 55144-1000
Phone 866-513-4026
Web 3M.com/airbarrier
3M
Permeable Liquid Flashing & Air Barrier
Membrane 3015LF - Installation Best Practices
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 ush.
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 ashing with a slow-speed (200 to 400 rpm) mechanical mixer (drill with a mixing paddle)
for two minutes or stick stir until the liquid ash has a consistent white color.
Application
Fill gaps and cracks exceeding 1/8" width with 3M
Adhesive Sealant 740UV, and tool the surface ush and smooth. Fill gaps
exceeding 1/2" width with closed cell foam backer rod or a foam seal, then with 3M
Adhesive Sealant 740UV, and tool the surface
ush and smooth.
After mixing the 3M
Permeable Liquid Flashing & Air Barrier Membrane 3015LF, apply to a clean prepared surface using at least
a 3/8" (8.5 mm) nap roller with rounded edges or 2" (50 mm) or wider brush. 3M
Permeable Liquid Flashing Membrane 3015LF can
also be spray applied.
Apply a minimum of 50 mils (1.27 mm) of liquid ashing onto the horizontal pan or sill surface and a minimum of 10 mils (0.254 mm)
of liquid ashing onto the vertical and top surfaces. Test the thickness using a wet mil gauge. Make sure material contains no pinholes
and is void-free and undamaged. Alternative: Use a 3M Sheet Flashing Membrane on the sill and 3015LF for the Jambs and Header.
Apply pail cover when not in use to prevent the liquid ash from skinning over.
Extend surface preparation a minimum of 2" (50 mm) beyond the termination of the ashing.
Stucco Adhesion
Adhesion of stucco to 3M
Permeable Liquid Flashing & Air Barrier Membrane 3015LF has been tested in lab conditions using washed
Mason Sand broadcast until rejection. Pull adhesion of >30 lbs/square inch 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.
Coverage
10 mil thickness equals 160 sq. feet/gallon
14 mil thickness equals 114 sq. feet/gallon
When referencing the AAMA 200-12 (windows) and/or 400-13 (doors) standards, the 3M solutions for these standards include:
3M
Permeable Liquid Flashing & Air Barrier Membrane 3015LF, a STPE-based membrane, brush/roller-grade liquid ashing.
3M
Adhesive Sealant 740UV, a STPE-based, gun-grade, non-sag waterproong sealant.
Together, these STPE-based materials allow for wet-on-wet applications, thus minimizing downtime.
Learn about 3M’s advanced technologies for controlling airow and optimizing the indoor climate at
3M.com/airbarrier
or contact your 3M representative at
866-513-4026.
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 sucient to assess and apply
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this information. Product Selection and Use: Many factors beyond 3M’s control and uniquely within user’s knowledge and control can aect
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.
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product literature (in which case such warranty governs), 3M warrants that each 3M product meets the applicable 3M product specication
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3M Permeable Liquid Flashing Membrane 3015LF User guide

Type
User guide

3M Permeable Liquid Flashing Membrane 3015LF is a commercial grade Silyl Terminated Polyether (STPE) based vapor permeableliquid flashing that is designed for detailing windows, doors, pipe penetrations and other building fenestrations. It can be applied on vertical or overhead surfaces. It is designed to work on common building substrates that are dry or damp at temperatures from 25° to 100°F. 3M™ Permeable Liquid Flashing Membrane 3015LF is rainproof after 60 minutes and can be exposed to direct sunlight for up to 12 months

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