STRONG, FLEXIBLE, DURABLE

AND PAINTABLE

ADHERES TO MOST SURFACES

AND CONFORMS TO ANY SHAPE

LOW VOC FORMULATION

FEWER PRODUCTS NEEDED

ON JOBSITE, REDUCING WASTE

PART OF A COMPLETE

MOISTURE CONTROL SYSTEM

VAPOR PERMEABLE

One Tube: Multiple UsesThe primary cause of water intrusion is the lack of properlyintegrated flashing around windows, doors and otherfenestrations. The cost of these repairs and potential exposureto litigation can be staggering, particularly when waterleakage leads to problems with mold and mildew. MoistopSealant and Liquid Flashing can be used as both a sealant andflashing, providing a multi-tasking solution for improved

weatherizationeffectiveness and jobsiteefficiency.

Completely CompatibleMoisture Resistant SealantMoistop Sealant and Liquid Flashing is anadvanced polymer designed to be compatible withvirtually all building materials. Moistop deliversexcellent adhesion, compatibility, durability andmoisture resistance to prevent door and windowwater leaks, and the expensive callbacks they

cause. It is also suitable for use in construction joints up to one half inch in width.Moistop exceeds ASTM C920 and AAMA 808.3-92 (Exterior Perimeter SealingCompounds) standards.

Durable Liquid Applied FlashingUsed as a liquid flashing system, Moistop Sealant and Liquid Flashing provides gap-free protection to rough and irregular surfaces. It is particularly useful when applyingflashing to curved intrusions like vents and plumbing, and is highly effective withmasonry window and door installations. Where specified as a liquid applied flashing,the product exceeds AAMA 714 standards. And even though Moistop is toughenough to repair torn vapor barriers, it is smooth enough to take paint in visibleapplication areas.

Part of a Complete Moisture Control SolutionImprove jobsite efficiency and reduce waste by specifying and using a single productwith multiple moisture protection uses.

Moistop Sealant and Liquid Flashing is part of the Fortifiber® Protection System andis highly effective when paired with Jumbo Tex® building paper, WeatherSmart®

housewraps, and all Fortifiber flashings. Together they form a comprehensiveweatherization system that protects homes and buildings against moisture intrusionproblems. Designed through the use of building science and perfected in the field,this is the only complete moisture control system available in the industry from asingle source. When this complete system is installed properly, builders are eligiblefor 15 year warranty protection that covers both materials AND labor.

The Fortifiber Building Systems Group® is proud to offer thisMade-In-USA product. With more than a seventy-five yearhistory of proven performance, technical expertise and practicalknow-how, the company has become a trusted partner to builders,architects and code officials.

“ Advanced polymer

technology delivers superior

adhesion, compatibility and

durability to prevent water

leaks and the expensive

callbacks they cause.”

®

MOISTOP SEALANT & LIQUID FLASHING

SPECIFICATION SUMMARY: Providesan exterior perimeter sealingcompound for windowsand doors that is compatible withmost commonly used buildingmaterials.

FLEXIBLE WINDOW & DOOR

FLASHING: One-component,moisture curing, non-sagelastomeric liquid appliedflashing.

REFERENCE SPECIFICATION: AAMA808.3-92 (Exterior PerimeterSealing Compound); ASTM C920Type S, Grade NS, Class 25.

1-8OO-773-4777 · www.fortifiber.com© 2015 Fortifiber Building Systems Group®. Fortifiber®, Jumbo Tex®, Moistop® Sealant and Liquid Flashing, PlyDry®, Protecting Your World from the Elements® and WeatherSmart® are trademarks of

Fortifiber Corporation. 3/16

Product Description: Moistop Sealant and Liquid Flashing is a onecomponent, moisture curing, non-sag, gun-grade elastomericpolymer for use as a sealant or liquid applied flashing.

Size: Moistop Sealant and Liquid Flashing is available in 10.1 fl. oz.(300 ml) and 28 fl. oz. (828 ml) cartridges and 20 fl. oz. (591 ml)sausage packs.

Applicable Standards: ASTM C920 Type S, Grade NS, Class 25,Use-NT, Use-A, Use-M, Use-G, Use-O, AAMA 808.3-92 (ExteriorPerimeter Sealing Compound), AAMA 714-15.

Limitations: Not recommended for unprimed masonry joints thatwill be subjected to continuous water immersion; joints that arecontaminated with grease, wax, corrosion or cement laitance;horizontal joints in floor or decks where physical abuse isencountered; special architectural finishes without proper testing.Not compatible with solvent-based paints.

Application Limitations: Moistop Sealant and Liquid Flashingshould be applied when temperatures are between 40°F and 112°F.Do not apply to frost-bearing surfaces or when temperatures havebeen below freezing for more than 24 hours immediately prior toinstallation. Tooling techniques using solvents or soapy solutions arenot recommended; sealant cannot be cleaned/tooled uncured withsolvents (isopropyl alcohol is recommended). All surfaces must beevaluated for adhesion prior to product acceptance.

Compatibility and Adhesion: It is expected that Moistop Sealantand Liquid Flashing will adhere and perform in uncontaminatedjoints with most common construction substrates. Substrates includebut are not limited to concrete, exterior gypsum, stucco, EIFS,aluminum, galvanized surfaces, glass, wood and polyvinyl chloride(PVC). Due to the vast numbers and types of surface coatings andtreatments available, the Fortifiber Building Systems Grouprecommends pretesting Moistop Sealant and Liquid Flashing on thesurface in question. Sealant compatibility testing is not required forFortifiber’s full line of flashing products and weather-resistivebarriers. All surfaces should be clean and clear of any surfacecontamination. In the case of some exotic coatings, priming or othersurface treatment may be necessary.

Shelf Life: Moistop Sealant and Liquid Flashing will exhibit a ten(10) month shelf life when stored at temperatures not exceeding75°F. “Use by” date is printed on each tube.

Availability: The Fortifiber Building Systems Group’s products aredistributed nationwide. For product information and pricing, pleasecall a Fortifiber distributor near you. If you need assistance locating aparticipating distributor, please call our Customer ServiceDepartment at 1-800-773-4777.

Precautions: IF THIS PRODUCT IS USED IN DIRECTCONTACT WITH ANY OTHER SEALANT OR ELASTOMER,A COMPATIBILITY TEST MUST BE CONDUCTED BYPURCHASER OR USER, PRIOR TO ACCEPTANCE. MOISTOPSEALANT AND LIQUID FLASHING IS NOT COMPATIBLEWITH OXIME CONTAINING SILICONE SEALANTS. Thesuitability of this product, for each intended use, must be determinedby the purchaser prior to acceptance. Avoid skin contact. On contact,uncured sealant could cause irritation to the skin and eyes. In the caseof eye contact, flush immediately with warm water for at least 15minutes and call a physician. For skin contact, remove with a towel andwash the affected area with a citrus-based hand cleaner. If swallowed,do not induce vomiting; call a physician. This product is manufacturedfor industrial use only. Refer to Safety Data Sheet (SDS) on thecompany’s website at www.fortifiber.com for further information. Formedical emergency call ChemTrec 1-800-424-9300.

Fortifiber Warranty: This product may be eligible for Fortifiber’sFortiShield® 15 year warranty when used in conjunction with otherFortifiber products. Please see our website at www.fortifiber.com/warranty.htm for details.

Fortifiber Corporation warrants that its products are in compliancewith their published specifications and are free from defects inmaterials and workmanship for a period of two years from the date ofpurchase. This warranty does not apply to loss due to abuse. Materialfound to be defective will be replaced at no charge by Fortifiber, but inno event shall Fortifiber be liable for any other costs or damages,including any labor costs.

THIS EXPRESS WARRANTY IS GIVEN IN LIEU OF ANDEXCLUDES ALL OTHER EXPRESS OR IMPLIEDWARRANTIES, INCLUDING BUT NOT LIMITED TO THEIMPLIED WARRANTIES OF MERCHANTABILITY ANDFITNESS FOR A PARTICULAR PURPOSE. Fortifiber’s soleobligations under this warranty are as set forth herein. In no event shallFortifiber be liable for any lost revenue or profits, direct, indirect,special, incidental or consequential damages of any kind.

Peel Adhesion: 20 lb/in ASTM C794Pass AAMA 800

Tensile Maximum: 200 psi (1.38 N/mm²) ASTM D412

Elongation: 450% ASTM D412

Max VOC: 9 g/l (.075 lbs/gal) ASTM D3960

Hardness: 30 ±5 ASTM C661

Service Temperature: -40° to 180°F (-40°C to 82.2°C) –

Application Temperature: 40°F to 110°F (0°C to 43.3°C) –

Tack Time: <1 hour 1/4” (6.34 mm) diam. bead@ 77°F (25°C); 50% R.H.

Cure Time: 24 hours 1/4” (6.34 mm) diam. bead@ 77°F (25°C); 50% R.H.

Movement Capability: ±25% ASTM C719

Liquid Applied Flashing: Pass AAMA 714-15

CHARACTERISTIC RESULTS TEST METHOD

Table 1- Physical Properties

MEMBERAMERICANARCHITECTURALMANUFACTURERSASSOCIATION

Table 2- Approximate Coverage (Ln. Ft. per 10 oz.)

3/8" Bead 30' - -

4" width - 15' 10'

6" width - 10' 6'

LI UID APPLIED FLASHING

SEALANT 25 MIL 40 MIL