Acrylic Foam SGT

8/7/2019 Acrylic Foam SGT

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Acrylic Foam Structural GlazingAcrylic Foam Structural GlazingTape: A New BondingTape: A New Bonding

AlternativeAlternativeLearning ObjectivesLearning Objectives -- After the training, you will be ableAfter the training, you will be able

to:to:Discuss the requirements for structural glazing for curtainDiscuss the requirements for structural glazing for curtainwall construction.wall construction.Explain the benefits and features of acrylic foamExplain the benefits and features of acrylic foamstructural glazing tape for structural glazing systems.structural glazing tape for structural glazing systems.Describe performance testing of acrylic foam structuralDescribe performance testing of acrylic foam structuralglazing tape for structural glazing.glazing tape for structural glazing.Compare and contrast structural glazing building practicesCompare and contrast structural glazing building practicesaround the world.around the world.

Liberty Memorial Museum, KansasCity, MO. Architect: ASAIArchitecture, 2006. Structuralglazing with acrylic foam tapeconforms with the interior luminouswhite drum curtain wall.


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A. HISTORYA. HISTORYOn the market since 1980, acrylic foam tape is found in aOn the market since 1980, acrylic foam tape is found in amultitude of applications in a cross section of industries aroundmultitude of applications in a cross section of industries aroundthe globe. But it has only recently become available in the U.S. asthe globe. But it has only recently become available in the U.S. asan effective alternative to structural silicone and spacer tape foran effective alternative to structural silicone and spacer tape forcommercial curtain wall applications.commercial curtain wall applications.In the early 1980s, applications broadened in the commercialIn the early 1980s, applications broadened in the commercialconstruction industry to include permanent bonding and sealing of construction industry to include permanent bonding and sealing of architectural metal panels to a variety of surfaces includingarchitectural metal panels to a variety of surfaces includingframes, stiffener attachments, Iframes, stiffener attachments, I- -beams, and metal cladding.beams, and metal cladding.Among the many applications from Australia to Brazil and the U.S.Among the many applications from Australia to Brazil and the U.S.to the United Arab Emirates, are high profile examples whereto the United Arab Emirates, are high profile examples whereacrylic foam tape replaced screws, rivets, welds, and silicones.acrylic foam tape replaced screws, rivets, welds, and silicones.Available outside of the U.S. since 1990 for structural glazing, itAvailable outside of the U.S. since 1990 for structural glazing, ithas been used in over 3,000 curtain wall projects in Southhas been used in over 3,000 curtain wall projects in SouthAmerica, India, Europe, and Asia. As architects, curtain wallAmerica, India, Europe, and Asia. As architects, curtain wallfabricators and contractors discover its features and analyzefabricators and contractors discover its features and analyzepotential production cost and time savings, acrylic foam structuralpotential production cost and time savings, acrylic foam structural

glazing tape for structural glazing should become a viable choiceglazing tape for structural glazing should become a viable choicefor specifiers of curtain wall glazing systems.for specifiers of curtain wall glazing systems.In Dubai, U.A.E., aluminum composite panels of W.S. Atkins & In Dubai, U.A.E., aluminum composite panels of W.S. Atkins & PartnersPartners- -designed Burj Al Arab Hotel, opened in 1999, weredesigned Burj Al Arab Hotel, opened in 1999, werebonded by acrylic foam tape to the framework to resist high windbonded by acrylic foam tape to the framework to resist high windloads in this harsh and warm environment.loads in this harsh and warm environment.


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B. DEFINITIONB. DEFINITION

Acrylic foam tape is twoAcrylic foam tape is two- -sided, pressuresided, pressure- -sensitive, closedsensitive, closed- -cell acrylic foam.cell acrylic foam.

Acrylic foam structural glazing tape replaces both spacerAcrylic foam structural glazing tape replaces both spacer

tape and structural silicone for structural glazing. A singletape and structural silicone for structural glazing. A singleproduct comprising a solid adhesive construction, it servesproduct comprising a solid adhesive construction, it servesas the primary bonding agent and a secondary sealingas the primary bonding agent and a secondary sealingagent. Spacer tape is sometimes referred to as structuralagent. Spacer tape is sometimes referred to as structuralglazing tape and should not be confused with acrylic foamglazing tape and should not be confused with acrylic foamstructural glazing tape.structural glazing tape.

Philips Headquarters inHamburg, Germany.Acrylic foam structuralglazing tape was used tobond 2,400 glazed

panels.


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C . C OMPARISION OF AFSGT & SGTC . C OMPARISION OF AFSGT & SGTAcrylic foam structuralAcrylic foam structuralglazing tape replaces bothglazing tape replaces bothspacer tape and structuralspacer tape and structuralsilicone for structuralsilicone for structuralglazing.glazing.

A single productA single productcomprising a solid adhesivecomprising a solid adhesiveconstruction, it serves asconstruction, it serves asthe primary bonding agentthe primary bonding agentand a secondary sealingand a secondary sealingagent.agent.

Is delivered fully cured, inIs delivered fully cured, inpredefined thickness andpredefined thickness andwidth.width.

Spacer tape is sometimesSpacer tape is sometimesreferred to as structuralreferred to as structuralglazing tape and shouldglazing tape and shouldnot be confused withnot be confused withacrylic foam structuralacrylic foam structural

glazing tape.glazing tape.It serve as primaryIt serve as primarybonding agent only.bonding agent only.

Common spacer tapeCommon spacer tape

dimensions are 6mm thickdimensions are 6mm thickby 12 mm wide.by 12 mm wide.


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D. Authorized Substrates:D. Authorized Substrates:

Most metalsMost metalsGlassGlass

Many plasticsMany plasticsCompositesCompositesSealed woodSealed wood

PaintsPaintsPowder coatings.Powder coatings.


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E. A C RYLIC FOAM TAPE PRODU C TE. A C RYLIC FOAM TAPE PRODU C TINFORMATIONINFORMATION

Adhesive = High performance acrylic.Adhesive = High performance acrylic.Adhesive carrier = Conformable acrylic closed cell foamAdhesive carrier = Conformable acrylic closed cell foamThickness = 0.090 in (2.3 mm) Tolerance+/Thickness = 0.090 in (2.3 mm) Tolerance+/- - 10 Percent10 PercentDensity = 45 lb/cu ft (720 kg/cu m)Density = 45 lb/cu ft (720 kg/cu m)Standard Tape Color = Gray or BlackStandard Tape Color = Gray or Black

Liner = 0.005 in (0.125 mm) Red polyethylene filmLiner = 0.005 in (0.125 mm) Red polyethylene film

Note: This technical information and data should beNote: This technical information and data should beconsidered representative or typical only and should not beconsidered representative or typical only and should not beused for specification purposes.used for specification purposes.


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F. PERFORMAN C E:F. PERFORMAN C E:Improved quality control because of consistent thickness andImproved quality control because of consistent thickness andwidth.width.Product comes fully cured from the tape manufacturerProduct comes fully cured from the tape manufacturerBonds and seals simultaneously.Bonds and seals simultaneously.Provides uniform stress distribution along the bond line.Provides uniform stress distribution along the bond line.

Has proven durability as acrylic foam tapes have been in use forHas proven durability as acrylic foam tapes have been in use forover 25 years.over 25 years.Foam dampens vibration and reduces acoustic noise.Foam dampens vibration and reduces acoustic noise.300 percent shear strain capability accommodates differential300 percent shear strain capability accommodates differentialthermal expansion and contraction.thermal expansion and contraction.Viscoelastic characteristics give a proper balance of properties forViscoelastic characteristics give a proper balance of properties forreliability against wind, vibration and temperature changes.reliability against wind, vibration and temperature changes.

Resistant to solvents, chemicals and UV.Resistant to solvents, chemicals and UV.Resistant to temperature cycling.Resistant to temperature cycling.Third party testing documentation. (ASTM Structural PerformanceThird party testing documentation. (ASTM Structural PerformanceTests for Structural Glazing)Tests for Structural Glazing)


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G. PRODU C TIVITY:G. PRODU C TIVITY:Immediate handling strength. Faster through put andImmediate handling strength. Faster through put anddelivery.delivery.Reduces need for storage space since there is no cure time.Reduces need for storage space since there is no cure time.Reduced number of components for structural glazing.Reduced number of components for structural glazing.Spacer tape or gaskets are eliminated.Spacer tape or gaskets are eliminated.More accurate forecasting of materials required andMore accurate forecasting of materials required andtherefore reduced overall costs.therefore reduced overall costs.Eliminates need for mix/ratio testing.Eliminates need for mix/ratio testing.Minimal equipment required thereby reducing equipmentMinimal equipment required thereby reducing equipmentmaintenance costs.maintenance costs.Relatively short learning curve for installation.Relatively short learning curve for installation.Less waste compared with using structural silicone.Less waste compared with using structural silicone.Saves cleanSaves clean- -up time.up time.Reduced installation time.Reduced installation time.Tape can be cut to fit any length, shape, size or profile.Tape can be cut to fit any length, shape, size or profile.Reduced labor costs because of less number of fabricationReduced labor costs because of less number of fabricationsteps and faster processsteps and faster process100 percent nondestructive testing capability with a tape100 percent nondestructive testing capability with a tape

glazed systemglazed system


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H. APPEARAN C E:H. APPEARAN C E:

Tape has clean crisp edgeTape has clean crisp edgeDesign and appearance enhanced by virtuallyDesign and appearance enhanced by virtuallyinvisible fastening, which gives, smooth andinvisible fastening, which gives, smooth andclean lookclean look

Uniform thickness creates repeatable resultsUniform thickness creates repeatable resultsNo color mismatch between structural silicone,No color mismatch between structural silicone,spacer tape and gasketspacer tape and gasketColor remains consistent from one end to theColor remains consistent from one end to theotherother

Standard choice of colorsStandard choice of colors gray and blackgray and blackSmaller gap between frame and glassSmaller gap between frame and glassTape bonds, seals and conforms to a variety of Tape bonds, seals and conforms to a variety of surfacessurfaces


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C ON C LUSION:C ON C LUSION:Overall, the test result showed that theOverall, the test result showed that theperformance of the panels mounted using acrylicperformance of the panels mounted using acrylicfoam structural glazing tape was as good as thefoam structural glazing tape was as good as thepanels mounted using the conventional structuralpanels mounted using the conventional structural

silicone sealant. All the panels performedsilicone sealant. All the panels performedsatisfactorily; there was no measurable airsatisfactorily; there was no measurable airinfiltration, no water penetration was observed,infiltration, no water penetration was observed,and the panels withstood pressures up to theand the panels withstood pressures up to thedesign pressure of 60 psf (2.9 kPa) even afterdesign pressure of 60 psf (2.9 kPa) even afterthe panels had gone through twenty cycles of the panels had gone through twenty cycles of

extreme temperature cycling of extreme temperature cycling of - -1313

F to 158F to 158

F.F.

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Acrylic Foam SGT