DuPont™ LiquidArmor™ QS Flashing and Sealant

Advanced Liquid Flashing Alternative for Commercial Applications

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DuPont™ LiquidArmor™ QS Flashing and Sealant

Advanced Liquid Flashing Alternative for Commercial Applications

<br /><b>DuPont™ LiquidArmor™ QS Flashing and Sealant</b> is a quick skinning, innovative, liquid flashing solution designed to provide advanced moisture and air sealing protection to commercial buildings. A unique alternative to flashing tape, the elastomeric spray forms a tight, seamless barrier along the rough openings of windows and doors while helping to significantly reduce labor time. <br /><br /> <b>LiquidArmor™ QS</b> offers excellent sealing for the installation of the Thermax™ Wall System and or the Ultra Wall System. The liquid flashing solution covers and seals hard-to-reach gaps up to a quarter inch wide and offers a reliable replacement to peel and stick flashing tapes commonly used on board joints of commercial buildings. The versatile, water-based coating of <b>LiquidArmor™ QS</b> works on a wide range of surfaces, including foam boards, steel studs, concrete masonry units, tapes and wood buck. With sprayable, aqueous technology, it facilitates a consistent application using commonly available airless paint sprayers. <br /><br /> <b>LiquidArmor™ QS</b> seals around screws, veneer anchors and penetrating fasteners, resulting in a durable and resilient barrier suited to withstand job site variations and long-term building performance. Once the sealant sets to the final elastomeric solid, the treated area is protected and helps provide superior air leakage and moisture control as part of a joint treatment with DuPont’s commercial wall assemblies.
 
 
 
 
 
 

Features & Benefits 

 
 
 
 
 
 

Specifications

 
 
 

Standard Sizes

Unit Unit Size Units per Pallet
5 Pail 5 Gallons 36
 
 
 

Testing

<b>LiquidArmor™ QS Flashing and Sealant</b> exhibits physical properties as indicated in the tables below when tested as represented. Review all instructions and (Material) Safety Data Sheet ((M)SDS) before use. Please contact DuPont at 1-833-338-7668 when additional guidance is required for writing specifications that include this product.

TEST METHOD TEST TITLE PROPERTY RESULTS
STRENGTH
ASTM D412 Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension Tensile Strength 190 psi
ASTM D412 Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension Elongation at Break 2.83
WATER
ASTM E96 Standard Test Methods for Gravimetric Determination of Water Vapor Transmission Rate of Materials Water Vapor Transmission Method B 4 perms @ 50 wet mils
GENERAL
AAMA 714 Specification for Liquid Applied Flashing Used to Create a Water-Resistive Seal around Exterior Wall Openings in Buildings Accelerated Weathering Section 5.3 PASS
AAMA 714 Specification for Liquid Applied Flashing Used to Create a Water-Resistive Seal around Exterior Wall Openings in Buildings Elevated Temperature Section 5.4 PASS
AAMA 714 Specification for Liquid Applied Flashing Used to Create a Water-Resistive Seal around Exterior Wall Openings in Buildings Crack Bridging Section 5.6 PASS
ASTM D1970 Standard Specification for Self-Adhering Polymer Modified Bituminous Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection Nail Sealing Ability PASS
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

FAQ

How thick should DuPont™ LiquidArmor™ QS Flashing and Sealant be applied? What will happen if it is applied thinner? Thicker?
It is recommended to apply LiquidArmor™ QS at 50 (+/-5) mils. LiquidArmor™ QS was designed and tested to perform optimally in this thickness range. A wet film thickness gauge, typically available at paint supply stores, can be used to verify product application thickness during installation.

As the application thickness increases, the product may take longer to completely dry. As the application thickness extends below the recommended minimum thickness, the air and water barrier performance of LiquidArmor™ QS may become compromised.

Ensure product application complies with local building codes.

What are the percent solids of DuPont™ LiquidArmor™ QS Flashing and Sealant? What is the expected dry film thickness?
LiquidArmor™ QS is a water-based formula that is 75% solids. When applied at 50 mils thick, the expected dry film thickness is approximately 35 mils.
Does DuPont™ LiquidArmor™ QS Flashing and Sealant adhere equally to all substrates?For example, will LiquidArmor™ QS have the same adhesion to un-faced polystyrene foam as it does with faced polystyrene foams, OSB, and house wraps?
LiquidArmor™ QS adheres well to most common building materials.

LiquidArmor™ QS adheres well to CMU block, extruded polystyrene foam, polyisocyanurate foam, aluminum, steel, PVC (polyvinylchloride), OSB, plywood, one and two component polyurethane spray foams, caulk (acrylic), Dens glass gold and most house wraps. LiquidArmor™ QS adhesion to most substrates generally improves over time.

As with all adhesive type products, actual adhesion strength to various substrates will vary. LiquidArmor™ Flashing and Sealant products exhibit higher adhesion properties to CMU block, wood products and steel than they do to lower surface energy materials. It is reasonable practice to apply a small amount ofLiquidArmor™ Flashing and Sealant on any new substrates, allow it to cure and assess its adhesion using a field pull test method like ASTM D4541.

Does DuPont™ LiquidArmor™ QS Flashing and Sealant meet the 2021 and 2024 International Building Code (IBC)?
Yes. LiquidArmor™ Flashing and Sealant products do comply with the 2021 and 2024 International Building Code (IBC), flashing material requirements under the IBC center around moisture management. In addition, some fire testing is required for flashings used in exterior walls containing foam plastics.

First, the IBC requires that 'Flashings be installed in such a manner so as to prevent moisture from entering the wall or to redirect it to the exterior. 'The IBC does not directly call out performance metrics for the flashing, but it does call out under Section 1402.2 that ASTM E331 testing may be used to demonstrate an exterior wall envelope's ability to resist wind-driven rain. LiquidArmor™ QS has been tested per ASTM E331 at 6.24 psf (~49 mph wind*) in two commercial wall assemblies including penetrations and board joints flashed with LiquidArmor™. The first wall system tested was the DuPont™ Thermax™ Wall System (TWS) with LiquidArmor™ QS and LT; the wall system effectively prevented water penetration.

Second, while LiquidArmor™ QS is NOT a foam plastic, Section 2603.5.5 in foam plastics section of the IBC does require that an entire wall assembly of an exterior wall in building Types I, II, III and IV pass NFPA285 if the exterior wall contains a foam plastic. LiquidArmor™ LT has been evaluated and approved for use in multiple exterior wall assemblies that contain foam plastic, including the Ultra Wall System and the Thermax™ Wall System. See your local DuPont sales representative for more details.

What is the shelf life of DuPont™ LiquidArmor™ QS Flashing and Sealant?
LiquidArmor™ QS Flashing and Sealant, when stored in its original air tight container, has a shelf life of 12 months.
How long does it take for DuPont™ LiquidArmor™ QS Flashing and Sealant to cure?
The drying time for LiquidArmor™ Flashing & Sealant products depends on humidity, temperature, sun exposure and wind direction.

LiquidArmor™ QS will typically be 'dry-to-touch' within 5 hours. For higher humidity and lower temperature environments, LiquidArmor™ QS may need to be left overnight to dry. LiquidArmor™ QS is typically rain resistant within 5 hours but thattime could vary based on humidity.

It is recommended that building components, such as windows, that will be in contact with LiquidArmor™ Flashing and Sealant, are not to be installed until the LiquidArmor™ is 'dry to the touch'.

The DuPont™ LiquidArmor™ LT Flashing and Sealant product information sheet states thatLiquidArmor™ LT is 'rain resistant'. What does that mean? How long must LiquidArmor™ cure before it can resist rain?
LiquidArmor™ LT starts to develop a good quality skin typically 30-40 minutes after the product is applied. LiquidArmor™ LT exhibits rain resistance as early as 15 minutes after product application.
 
 
 
 
 
 

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