TECHNICAL DATA SHEET February HBF 100 Low Modulus - HIGH PERFORMANCE ARCHITECTURAL SILICONE SEALANT

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1 Description HBF 100 silicone sealant is a high performance neutral cure sealant specially formulated for use in aluminium façade systems and other situations where a low modulus, high joint movement silicone is required. HBF 100 has a long tooling time when compared to traditional silicone sealants and combines very high resistance to weathering with excellent adhesion and flexibility. HBF 100 provides a high level of mould and bacteria resistance and is approved for use in food contact areas. Pack Sizes 310ml/400g ctg White (Resource ) 310ml/400g ctg Black (Resource ) 310ml/400g ctg Grey (Resource ) Benefits Low modulus formula reduces stress induced on adhesive bond under high joint movement Highly UV and weather resistant +100/-50% dynamic movement capability (ASTM C-920) Long tooling time suitable for long joints Mould resistant Food contact safe -Tested to FDA code CFR 21, (e,f) Low VOC 39g/ltr - Green star project compliant. Non-slump in joints up to 30mm wide Uses Sealing expansion joints in aluminium façades Sealing of lap joints in caravan construction Sealing of joints where high movement is anticipated due to narrow designed joints, long spans between joints, or in portable construction Sealing gaps and joints in food contact areas and other commercial and industrial wet areas where a high level of mould and bacteria resistance is required. Compatible Substrates Glass Common composite panel finishes (test) Steel Concrete Aluminium* Some plastics (test) Copper* Fiberglass ceramic Stainless steel *Oxidised copper or aluminium abraded and cleaned. Product Yield A 310ml cartridge will yield approximately 15 lineal meters of a 5mm width round bead. Joint Width Joint Depth Yield (Linear mtrs) (mm) (mm) Performance Data Property Specific Gravity Data 1.35g/ml Sag Nil Skinning Time min, 25 C, 50% RH Cure Rate 2mm / day, generally Joint Movement Capabilities +100/-50% of the sealed joint width Hardness 20 Shore A Tensile Strength 2.1 MPa Elongation at break >1200% Service temp. range -60 o C to 120 oc Application temp. +10 o C to +35 oc to safely handle and use the product in the workplace. Since HB Fuller Australia Pty Ltd cannot anticipate or control the conditions under which the product may be used, each user must, prior to usage, review this technical data sheet in the context of how the user intends to handle and use the product in the workplace. If clarification or further information is needed to ensure that an appropriate assessment can be made, the user should contact this company. Our responsibility for the products sold is subject to our standard terms and conditions, a copy of which is sent to our customers and is also available on request - 1 -

2 Limitations Powder coated metal surfaces may have high wax contents. Ensure that these surfaces are solvent cleaned and abraded before applying silicone. Will not bond to the exposed core of aluminium composite panels with PE, PE/Mineral fibre cores Not for structural/direct glazing. Not for permanent or continuous water immersion. Not recommended in situations where joint movement exceeds +100/-50% of the original joint dimensions. Not suitable for use where high abrasion, e.g. foot traffic is expected. Not paintable, do not use on freshly painted surfaces. Do not use on bituminous surfaces. Use on materials that bleed oils, plasticisers or solvents could affect adhesion or lead to discolouration. Will not cure in absence of atmospheric moisture Where aluminium composite panel joints are sealed prior to removal of the panel protective film, ensure excess silicone is removed from the film, or the film is peeled back from the joint edge immediately. Under increased surface temperatures, and with white or light coloured panels in particular, the presence of sealant on the film can cause film plasticizer staining of the panel. (Usually a pale yellow stain, or change in panel gloss level.) Surface Preparation All surfaces must be clean, dry, sound and free of dust, oil, old sealant or other contamination. Lightly contaminated surfaces should be wiped with Isopropyl Alcohol (IPA) using the 2-rag wipe method. Apply IPA to a clean lint-free cloth and wipe onto the surface to be cleaned to solubilise and remove the majority of the contaminant. A clean dry cloth should then be applied to remove remaining contamination and dry the surface. Ensure wet cleaner is not allowed to dry on surface. For more heavily contaminated surfaces or where the IPA does not remove the contaminant, a generic wax and grease remover should be applied using the same 2-rag wipe method. Once this has been completed the surface should be given a final clean with IPA using the 2-rag wipe method to ensure the surface is adequately prepared. Adhesion to metals and some surface finishes can be further improved by light abrasion prior to cleaning with IPA using the 2 rag-wipe method. For glazing applications IPA should be used to clean and prepare the surface. Manufacturers of plastics should be consulted about suitable cleaning solvents. Adhesion to plastics should be pre-tested. Mask either side of joint to produce a neat finish. Use a suitable sized foam backing rod or polyethylene bond breaker tape to prevent three sided joint contact impeding the free and even deformation of the sealant in a cyclic joint. Product Application Refer to the below joint design guidelines and additional considerations for Aluminum composite panel façade systems Cut seal on top of cartridge. Screw on nozzle and cut to desired bead size. Hold gun at 45 angle. Push forward, squeezing trigger to gently fill joint. Within 20 minutes of application tool the sealant, ensure the sealant fully contacts the sides of the joint. Avoid using tooling agents such as detergent and water solution that may lubricate the joint edges affecting adhesion. If masking tape is used to produce a neat finish, remember to remove the masking tape before the sealant skins pulling in a direction away from the joint. Trim with a knife once cured, if needed. to safely handle and use the product in the workplace. Since HB Fuller Australia Pty Ltd cannot anticipate or control the conditions under which the product may be used, each user must, prior to usage, review this technical data sheet in the context of how the user intends to handle and use the product in the workplace. If - 2 -

3 Painting Mask all areas not requiring sealant. Paint will not adhere to silicone. Complete any painting and allow to thoroughly dry before applying sealant. Chemical Resistance HBF100 is resistant to water, salt water, grease, oils, fuels, defrosting liquid, detergents, aliphatic fats, mildew, weak acids and bases (pre testing required). Not resistant to aromatic solvents. Curing The rate of cure depends on the air temperature and humidity, the cross sectional area of the bead of sealant and the surface area of sealant exposed to the air. At 25 C and 50% relative humidity cure rate is 2mm / 24 hours. In general, low humidity and/or low temperature will result in longer cure times. Thicker sections of sealant will have longer cure times. A small surface area in relation to the volume of sealant will also extend the cure time. Ensure that the depth of the sealant in a joint never exceeds its width. Consider the use open cell foam backing rod to facilitate curing from the rear of the joint. Shelf Life HBF 100 silicone sealant will remain suitable for use for 12 months from the date of manufacture, if stored in original container, unopened, in a cool dry place in temperatures between +5 C C. Once opened, the contents should be used as soon as possible. HBF 100 is sensitive to heat and storage at high temperatures will reduce the useable life of the sealant. Clean Up For best results mask edges prior to sealing joints. Clean up uncured sealant using IPA and a cloth. Cured sealant should be removed by abrasion or trimmed with a sharp knife. Do not undercut seal. For aluminium composite panel finishes, pre-test the cleaning agent in an inconspicuous place to ensure no affect on the colour or gloss level of the panel finish. Joint Design and Caulking Guidelines for Aluminium composite panel façade systems HBF 100 Silicone sealant achieves a primer free bond to aluminium, and common composite panel finishes including polyester, PVDF and PVF2. Due to the wide range of composite panels and finishes available it is recommended to pre-test the adhesion of HBF 100 to all elements of the specific system prior to committing to the entire installation. Surface Preparation Thoroughly clean all surfaces with Isopropyl Alcohol (IPA) or similar oil/grease free cleaning agent. This includes top hats, panel/joint edges, and the panel rear surface where a sealant adhesive and adhesive tape installation method is used. Caulking Mask joint edges to create a neat joint edge. Gun sealant into the joint and tool the sealant to ensure complete contact with the joint edges, top hat section and panel rear (sealant adhesive/adhesive tape Direct stick systems.) to safely handle and use the product in the workplace. Since HB Fuller Australia Pty Ltd cannot anticipate or control the conditions under which the product may be used, each user must, prior to usage, review this technical data sheet in the context of how the user intends to handle and use the product in the workplace. If - 3 -

4 Tool the sealant within 20 minutes to leave a concaved joint finish to minimize the risk of the sealant standing proud of the panel face under sealant compression. Figure 1 Avoid the use of tooling lubricants due to the risk of lubricant contacting joint edges prior to the sealant and consequent adhesion failure. Remove masking tape immediately after tooling the sealant, pulling the tape in a direction away from the sealed joint. Cassette Installation method (Figure 1) Refer to the panel manufacturers installation specifications. Install a foam backing rod to prevent 3 sided joint contact and to provide a suitable backing for tooling against. Consider the use of open cell foam backing rod to assist the sealant curing from the rear of the joint. The recommended joint width to depth ratio is 1:1 for joints 10mm wide, and 2:1 for joints 20mm and above. For joint widths ranging from 10mm to 20mm, use a sealant depth of 10mm. Ensure the joint depth never exceeds the joint width. The minimum joint width should always be 10mm. Direct stick installation (Figure 2-4) Refer all surface preparation and caulking details above. Install a suitable double sided high bond strength tape such as 3MTM VHBTM 4991 to provide a permanent structural fixing and to support the panels while the sealant cures. For joints where the panel core is exposed, eg. Figure 4, ensure a minimum 5mm - 8mm distance between the panel edge and the outside edge of the adhesive tape. Either fill the joint between the panel rear face and top hat first, or ensure the sealant is tooled sufficiently to completely and consistently fill the joint between the top hat section and rear face of the aluminium panel achieving a weatherproof seal. to safely handle and use the product in the workplace. Since HB Fuller Australia Pty Ltd cannot anticipate or control the conditions under which the product may be used, each user must, prior to usage, review this technical data sheet in the context of how the user intends to handle and use the product in the workplace. If - 4 -

5 Figure 2 Figure 3 Figure 4 to safely handle and use the product in the workplace. Since HB Fuller Australia Pty Ltd cannot anticipate or control the conditions under which the product may be used, each user must, prior to usage, review this technical data sheet in the context of how the user intends to handle and use the product in the workplace. If - 5 -

6 Figure 5 To create a weatherproof joint, ensure a minimum 5mm to 8mm distance between the panel edge and the inner edge of the adhesive tape is achieved to facilitate an adequate adhesive bond/seal between the top hat and the aluminium, or finished rear face of the panel. Refer Figure 2,3 for panel edge treatments that facilitate a high performance bond to joint/panel edges. 2) Climatic conditions at time of caulking Figure 6 explains the impact of temperature change on panel dimensions and the consequent impact on a flexible joint seal. Additional Considerations 1) Sealing joints in cut edges of panels (Panel core exposed) HBF 100, and other silicone, polyurethane or MS polymer sealants will not bond satisfactorily to the exposed core of a panel. When taping joint edges, ensure that masking tape does not cover the edge of the aluminium panel face. In all cases avoid caulking joints at or towards the minimum or maximum anticipated panel service temperatures eg the heat of a summer day or the cold of a winter day. A joint sealed at or close to the maximum anticipated service temperature will experience all or most of its calculated movement in extension as the element cools (adhesive and cohesive stress on sealant.) Conversely, a joint sealed at or close to the minimum anticipated service temperature will experience all or most of its calculated movement in compression as the element warms (risk of sealant being squeezed from joint) Figure 6 Panel Temp. Panel Movement Resulting joint Sealant Behavior Plasticiser migration from the core of some panels may further affect adhesion to the panel core, or discolour white/light coloured sealants. Increase Expanding Joint narrows, sealant is placed into Compression to safely handle and use the product in the workplace. Since HB Fuller Australia Pty Ltd cannot anticipate or control the conditions under which the product may be used, each user must, prior to usage, review this technical data sheet in the context of how the user intends to handle and use the product in the workplace. If clarification or further information is needed to ensure that an appropriate assessment can be made, the user should contact this company. Our responsibility for the products sold is subject to our standard terms and conditions, a copy of which is sent to our customers and is also available on request - 6 -

7 Decrease Contracting Joint widens, sealant placed in extension/ Tension JOINTS SEALED APPROXIMATELY MIDWAY BETWEEN THE MINIMUM AND MAXIMUM ANTICIPATED SERVICE TEMPERATURES WILL EXPERIENCE AN APPROXIMATELY EQUAL AMOUNT OF EXPANSION AND CONTRACTION THUS MINIMISING THE EXTENT OF EACH OF THE ABOVE MOVEMENT TYPES ON THE SEALANT JOINT. 3) Calculating anticipated joint movement Required information: 1) Distance between joints in metres/length of the building element (Measure) 2) Coefficient of expansion of the building element (consult the manufacturer of the panel) 3) Anticipated change in temperature of the element in ºC (Project the possible change in temperature considering the geographic area - the coldest winter temperature of the element, to the hottest summer temperature, as well as the possibility of the element reaching higher than ambient temperatures eg. a dark coloured panel in the sun) The below formula can be used to calculate the total joint movement to anticipate. Formula: AL = a x Lo x A T Where: AL = Change in length of element in mtrs a = Coefficient of thermal expansion of element Lo = Length of element/distance between joints A T = Change in temperature of the element in ºC (max. min. anticipated service temperatures.) Eg. An aluminium composite panel with a coefficient of thermal expansion: a = 24 x 10-6 mm/mm/ º C Lo = 3.0 mtrs panel length/ distance between expansion joints AT = say 80 ºC so: AL = x 3 x 80 = metres = 5.76 mm Under this example, over the temperature range of 80 degrees, a 3 mtr length of the above aluminium composite panel can be expected to change in length by 5.76mm. Assuming a joint sealed midway between the minimum and maximum service temperatures ie equilibrium temperature, a 10mm joint could be expected to expand to 12.88mm wide (+28.8%) and contract to 7.12mm ( -28.8%) Note - The sealant movement capability must always exceed the total anticipated joint movement. Eg. The above 10mm joint requires a sealant with a total movement capability of > 57.6%, say 60%. The sealant requires a minimum movement capability of +/- 30%. If the above 10mm installed joint were sealed at or close to the maximum element temperature, then it can be expected that the joint will expand by close to 5.76mm by the time the element reaches its minimum temperature. The sealant now requires a far greater joint movement capability (57.6%) a sealant with a minimum of +/-60% joint movement. If the above 10mm installed joint were sealed at or close to the minimum element temperature, then it can be expected that the joint will contract by close to the before fore mentioned 5.76mm. to safely handle and use the product in the workplace. Since HB Fuller Australia Pty Ltd cannot anticipate or control the conditions under which the product may be used, each user must, prior to usage, review this technical data sheet in the context of how the user intends to handle and use the product in the workplace. If - 7 -

8 The sealant now requires a far greater joint compression capability 57.6%, and as such sealants are not commercially available the installed joint must be made wider. Note A lesser number of joints which are further apart (ie greater panel length), requires the joints to be wider or a more flexible sealant as the element will expand and contract predictably further distances. Given it is not always practically possible to seal joints midway between the minimum and maximum anticipated element temperatures, it is important to ensure that joint widths and panel lengths (distance between free joints) are in consideration of a maximum possible percentage change in joint width which is well within the specified limit of +100/-50% of the original joint width. Note When installing panels it is equally important to consider the panel temperature at the time of fixing. A panel installed at or close to the minimum or maximum anticipated service temperatures can significantly impact on the intended joint width, or place high shear stresses on adhesive tape bonds in direct stick fixing methods (Consult the panel manufacturer and tape supplier for further details) Accounting for the likelihood of joints being sealed at temperatures above or below equilibrium temperature The installed sealant joint width should always make consideration for joints being sealed at or close to the minimum or maximum possible element temperatures. Figure 7 details minimum joint width requirements for various panel lengths using Fuller HBF 100. Figures based on: a = 24 x 10-6 mm/mm/ º C AT = 80 ºC Consult H.B. Fuller if greater than 80 ºC service temperature range is anticipated Figure 7 Sealant joint movement Capability (HBF 100) Panel Length/ distance between free joints (m) Anticipated total panel movement (mm) Minimum joint width (mm) +100/-50% / mm +100/-50% / / /-50% / / /-50% / / /-50% / 9.6mm 18 /20 4) Periodic cleaning of panels and joints Observe the panel manufacturer recommendations with regard to suitable cleaning agents. Solvents should not be used to clean the sealed joints, which may cause the surface of the sealant to become sticky and attract dirt. Site specific Warranties Upon request, HB Fuller will provide site specific product warranties. Sample substrates are required 14 days prior to commencement of the project for the purpose of conducting pre-adhesion tests. The installer is also responsible for determining the suitability of HBF 100 for the intended application. No warranty will be provided without prior sign off of the proposed joint design. Contact HB Fuller to complete a warranty request form prior to project commencement. to safely handle and use the product in the workplace. Since HB Fuller Australia Pty Ltd cannot anticipate or control the conditions under which the product may be used, each user must, prior to usage, review this technical data sheet in the context of how the user intends to handle and use the product in the workplace. If - 8 -

9 Safety information This product is not considered to be hazardous according to criteria of NOHSC. Avoid contact with skin and eyes. Store in a dry place below 30 C. Keep out of reach of children. A MSDS is available from the H.B. Fuller representative your state, HB Fuller Australia customer service, or downloadable from the HB Fuller web site, Architectural Specification Seal all expansion joints with a low modulus, high performance architectural grade alcoxy silicone sealant. The sealant shall have a minimum +100/- 50% dynamic joint movement capability (ASTM C- 920), and minimum service temperature range of - 60 C to 120 C; such as Fuller HBF 100. Install sealant in full accordance with the manufacturers directions. Selected colour: <Grey, Black, white> to safely handle and use the product in the workplace. Since HB Fuller Australia Pty Ltd cannot anticipate or control the conditions under which the product may be used, each user must, prior to usage, review this technical data sheet in the context of how the user intends to handle and use the product in the workplace. If - 9 -

10 to safely handle and use the product in the workplace. Since HB Fuller Australia Pty Ltd cannot anticipate or control the conditions under which the product may be used, each user must, prior to usage, review this technical data sheet in the context of how the user intends to handle and use the product in the workplace. If