3

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.