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United States/CanadaI N S T A L L A T I O N I N F O R M A T I O N

®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow

I N S T A L L A T I O N R E C O M M E N D A T I O N S F O R

GREAT STUFF PRO™ Window & DoorInsulating Foam Sealant

R E S I D E N T I A L

The instructions outlinedhere describe how to useGREAT STUFF PRO™ Window &Door Insulating Foam Sealantto air seal the gap around aninstalled window or door frameand the rough opening. GREATSTUFF PRO Window & Door isdesigned to form a durable, airtight, water-resistant bond tovinyl, wood, composite andmetal surfaces. It reduces theamount of moisture intrusionthrough fenestration openings,which can help prevent moisturedamage and wood rot. Thisone-component, minimalexpanding, low-pressure flexiblepolyurethane foam expandsonly enough to generate aneffective seal, and is formulatedto not distort or bow windowand door frames when properlyapplied.

GeneralInformation

• GREAT STUFF PRO™ Window& Door Insulating FoamSealant is available in 20 oz(567 g) and 24.5 oz (695 g)reusable gun- and straw-appliedversions. See Table 1 for estimated yields.

• Using one of the PRO Seriesfoam dispensing guns (shownin Figure 1) simplifies theapplication of GREAT STUFFPRO Window & Door. In addi-tion to enabling pinpointapplication control, an airtightand moisture-tight sealbetween the gun and the canprevents the foam from curingand blocking the dispensingvalve, allowing a can to bereused.

Conditions of Use

• GREAT STUFF PRO™ Window& Door is flammable duringdispensing. Shut off all gaspilot lights, electrical ignitersand other sources of ignition(e.g., candles, space heatersand halogen lamps) beforeand during use. Do not smokeor use matches/lighters whiledispensing foam.

• Use GREAT STUFF PROWindow & Door in a well-ventilated area or with properrespiratory protection. Thefoam may cause sensitizationby inhalation and/or skincontact. Read the MaterialSafety Data Sheet before use.

• Contents of the can are underpressure. Do not place in hotwater. Do not puncture, incin-erate or store at temperaturesabove 120°F (49°C). Can mayburst if left in areas susceptibleto high temperatures, suchas motor vehicles or nearradiators, stoves or othersources of heat.

• Foam is extremely sticky. Takeappropriate measures toprotect skin, eyes and surfaces.Wear gloves and safety glassesor goggles.

• GREAT STUFF PRO Window &Door may be used on vinyl,wood, composite and metal(aluminum or steel) surfaces.The product adheres bestwhen surfaces are clean andfree of oil or chemicals.

• GREAT STUFF PRO Window &Door should be applied attemperatures between 40°Fand 100°F (4°C and 38°C) atrelative humidity ≥20%.

• Extremely cold temperaturescan affect dispensing performance.

• Skin of cured foam can dis-color if exposed to direct andcontinuous sunlight for 24hours or more. Foam shouldbe painted or coated if pro-longed exposure to sunlight isexpected.

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Can Size, oz (g) Delivery No. of Windows(1)

20 (567) Reusable straw 6-9

20 (567) Gun 11-14

24.5 (695) Reusable straw 8-11

24.5 (695) Gun 8-11

(1) Average-sized windows (36" x 60" [0.9 m x 1.5 m], gap 3/8" [10 mm] wide and 1" [25 mm] deep)

Estimated Yields for GREAT STUFF PRO™ Window & Door

TA B L E 1

I N S T A L L A T I O N I N F O R M A T I O N

2

Preparation 1. Apply GREAT STUFF PRO™

Window & Door when tem-peratures are between 40°Fand 100°F (4°C and 38°C),at relative humidity ≥20%.

2. Be sure window/door andframe surfaces are clean andoil- and chemical-free.

3. Shake can vigorously for 60seconds before dispensingand between uses. Shakerball must tap. To free shakerball, rap can firmly againstbase of hand.

4. Invert can and screw foamdispensing gun (or threadedend of straw assembly firmly)onto valve as shown inFigure 2. Screw until finger-tight; do not overtighten(Figure 3).

(When changing cans usingthe foam dispensing gun,tighten the flow controlknob before removing theempty can [Figure 4]. UseGREAT STUFF PRO™ GunCleaner to remove anyresidual foam from theattachment area beforeattaching fresh can.)

5. Dispense foam for 3-6 seconds to purge air fromgun or straw.

Application1. Keeping can inverted, insert

applicator nozzle into thespace between the windowor door and the roughopening and begin applyingfoam (Figure 5). Fill openingsless than 50 percent full toallow room for expansion.Do not overfill gap (Figure 6).GREAT STUFF PRO™

Window & Door should beapplied around all foursides of a window opening,and top and sides of a dooropening. Diameter of foambead should not exceed 3" (75 mm).

Figure 3

Figure 4

Figure 2

Figure 5TIP Using grease or petroleum jelly in theadapter of the gun mayreduce possibility offoam gluing the can onthe gun.

®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow

Figure 6

TIP Apply foam in a contin-uous bead, with no voidsor breaks, to achieve aneffective seal.

CAUTION:Do not inject the foamsealant into blind six-sided cavities, such aswindow mullions. Thefoam must be exposed toatmospheric moisture tothoroughly cure.

3

2. The foam dispensing gun isrecommended to control thesize of the foam bead (from1/8" to 3" [3 mm to 75 mm]).This is achieved by squeezingthe trigger on the foam dis-pensing gun or by adjustingthe flow control knob on theback of the gun to set howfar the trigger can be pulled(Figure 7). If using a strawdispenser, the force exertedon the button controls thesize of the foam bead.

3. If the gap is overfilled, trimaway excess foam with asharp knife (Figure 8). Foamwill be tack-free within 9minutes and can be trimmedin 1 hour. It is fully cured12 hours after application.*If product remains in thecan of GREAT STUFF PRO™

Window & Door, the gunmay be left attached for upto 30 days. Always close the flow control knob toprevent air from enteringthe gun when not in use.

4. Clean foam dispensing gunperiodically by rubbing theend on soft wood to free itfrom foam. Do not use asharp object to clean foamdispensing gun. Use GREATSTUFF PRO™ Gun Cleanerbetween extended periodsof non-use.

Cleanup• On solid surfaces, uncured

foam can be dissolved withGREAT STUFF PRO™ GunCleaner.

• For skin and other surfaces,cured foam must be mechani-cally removed or allowed towear off in time.

• To clean foam dispensing gun,install a can of GREAT STUFFPRO Gun Cleaner to the foamdispensing gun and sprayuntil all foam is blown out of the gun and only cleaner isvisible (approximately half thecan of cleaner will be used).Allow the gun containing thesolvent to sit for several minutes and repeat with asecond flush.

• Use GREAT STUFF PRO GunCleaner in well-ventilatedareas only. See the MaterialSafety Data Sheet for respiratoryprotection requirements.Solvent and propellant areflammable.

• Do not leave a can of cleanermounted on the foam dispens-ing gun. This will dissolve thelip seals inside the gun andrender it useless. Foam escap-ing at the handle or triggerindicates a faulty seal.

NOTE: If this happens, thegun should be replaced. Ifthe foam dispensing gun hasnot been cleaned, add anew can of GREAT STUFFPRO™ Window & Door imme-diately. If left without a canattached, exposure to air andmoisture will cause the foamin the gun to cure. A freshcan of foam may be leftattached to a foam dispensinggun that has been cleanedfor up to 30 days.

Figure 8

TIP Always close the flow control knob when the gun is not in use.

TIP Treat your gun like atool. The better youtake care of it, thelonger it will last.

®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow*Dependent upon temperature, relative humidity and size of foam bead

Figure 7

NOTICE: No freedom from any patent owned by Dow or others is to be inferred. Because use conditions and applicable laws may differ from one location to another and may change with time, Customeris responsible for determining whether products and the information in this document are appropriate for Customer’s use and for ensuring that Customer’s workplace and disposal practices are in compliancewith applicable laws and other government enactments. Dow assumes no obligation or liability for the information in this document. NO EXPRESS WARRANTIES ARE GIVEN EXCEPT FOR ANY APPLICABLEWRITTEN WARRANTIES SPECIFICALLY PROVIDED BY DOW. ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED.

COMBUSTIBLE: Protect from heat sources. For more information, consult MSDS, call Dow at 1-866-583-BLUE (2583) or contact your local building inspector. In an emergency, call 1-989-636-4400 in theU.S. or 1-519-339-3711 in Canada.

GREAT STUFF PRO™ products contain isocyanates, flammable hydrocarbon blowing agents and prepolymers. Read the label and Material Safety Data Sheet carefully before use. Eliminate all sources of ignition before use. Wear gloves and safety glasses or goggles. Provide adequate ventilation or wear proper respiratory protection.

Building and/or construction practices unrelated to building materials could greatly affect moisture and the potential for mold formation. No material supplier including Dow can give assurance that moldwill not develop in any specific system.

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THE DOW CHEMICAL COMPANY• Dow Building Solutions • 200 Larkin • Midland, MI 48674

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