{"title":"Fire rated Sealants","description":null,"products":[{"product_id":"hv-duct-high-velocity-duct-sealant","title":"Adheseal HV Duct Acrylic Sealant","description":"\u003cdiv role=\"main\"\u003e\n\u003cp\u003eFor high-velocity air ducts, seams, and metal sheet joints where fire rating and draft control are required, Adheseal HV Duct Acrylic Sealant provides a high-strength, dust-proof barrier. Tested to AS\/NZS 1530.3, it achieves a Smoke Developed Index of 3, helping HVAC installations comply with fire safety standards while preventing air leakage in high-pressure systems.\u003c\/p\u003e\n\u003ch3\u003eHow it works\u003c\/h3\u003e\n\u003cp\u003eHV Duct is a single-component acrylic polymer that cures through moisture loss. Once applied, it forms a permanently elastic gasket that absorbs vibration and accommodates up to ±5% joint movement. In hot and humid environments, the cured sealant resists mould, mildew, and biological growth. The formulation is low-VOC (22 g\/L) to meet Green Star environmental criteria, completely odourless once cured, and will not corrode galvanised steel, zinc-coated steel, or concrete.\u003c\/p\u003e\n\u003ch3\u003eNumbers that matter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e±5% joint movement\u003c\/strong\u003e — accommodates minor expansion and contraction in duct seams and metal panels without cracking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmoke Developed Index of 3\u003c\/strong\u003e — tested to AS1530.3 (with 0 Spread of Flame and 11 Ignitability Index) for fire-rated building and HVAC assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-5°C to 80°C service temperature\u003c\/strong\u003e — maintains seal integrity and flexibility under typical mechanical duct operating temperatures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e15 to 20 minutes skin time\u003c\/strong\u003e — fast-skinning formula at 25°C that allows quick sealing before a dust-resistant skin forms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e22 g\/L VOC\u003c\/strong\u003e — low-emission formulation meeting Green Star requirements for indoor air quality.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere to use it\u003c\/h3\u003e\n\u003cp\u003eHV Duct is suitable for both internal and external applications. It has excellent adhesion to metal, aluminium, and polystyrene foam without causing degradation. Common applications include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHVAC, air conditioning, and ventilation ductwork.\u003c\/li\u003e\n\u003cli\u003eSealing metal sheets to ductwork and other building components.\u003c\/li\u003e\n\u003cli\u003eBus, truck, and trailer body assembly.\u003c\/li\u003e\n\u003cli\u003eDust extraction systems.\u003c\/li\u003e\n\u003cli\u003eSealing around aluminium window frames.\u003c\/li\u003e\n\u003cli\u003eJoints in contact with Neoprene Sponge Foam Tapes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eLimitations\u003c\/h3\u003e\n\u003cp\u003eDo not use HV Duct in the following scenarios:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDo not apply below 5°C or above 35°C.\u003c\/li\u003e\n\u003cli\u003eDo not expose to continuous water flow, underwater applications, swimming pools, or below-grade installations.\u003c\/li\u003e\n\u003cli\u003eDo not apply in wet or damp conditions. External applications must be protected from rain for up to three days.\u003c\/li\u003e\n\u003cli\u003eDo not use in totally confined spaces; the sealant requires atmospheric humidity to cure.\u003c\/li\u003e\n\u003cli\u003eDo not use for structural glazing (use N-80 or N-60 Glazing silicone instead).\u003c\/li\u003e\n\u003cli\u003eDo not use for adhering mirrors (use High Power 609 instead).\u003c\/li\u003e\n\u003cli\u003eDo not use on composite panels without testing (Adheseal recommends \u003ca href=\"\/products\/adheseal-hi-flex-60\"\u003eHi Flex 60\u003c\/a\u003e, subject to pre-testing).\u003c\/li\u003e\n\u003cli\u003eDo not use in aquariums.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication and installation\u003c\/h3\u003e\n\u003cp\u003eAll surfaces must be structurally sound, dry, clean, and free of dust, grease, curing compounds, or surface water. For non-porous substrates, clean using the two-wipe process with 100% White Spirits. Adhesion testing is recommended. Where a primer is required, use Adheseal 50A for non-porous substrates and Adheseal 2001 for porous substrates.\u003c\/p\u003e\n\u003cp\u003eWhen applying as a sealant, cut the nozzle at a 45° angle and apply in a continuous bead, pushing the sealant ahead of the nozzle to ensure contact with both joint faces. When applying as an adhesive to bond two surfaces, cut a wedge in the nozzle to dispense a triangular bead, then compress the assembly to a minimum thickness of 2mm.\u003c\/p\u003e\n\u003cp\u003eTool the joint with a moistened spatula within 5 minutes of application, before the skin forms. Remove masking tape while the sealant is still wet. Incompatible substrates may cause discolouration or premature degradation; always conduct a compatibility test before full application.\u003c\/p\u003e\n\u003ch3\u003eClean up\u003c\/h3\u003e\n\u003cp\u003eClean tools and wet spills immediately with water. Cured sealant cannot be dissolved and must be removed by mechanical means.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Adheseal","offers":[{"title":"Single Buy","offer_id":39423168938176,"sku":"HVDUCT\/CTG","price":4.81,"currency_code":"AUD","in_stock":true},{"title":"Box Buy (20)","offer_id":39423168970944,"sku":"HVDUCT\/CTG\/BOX","price":86.6,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/files\/hv-duct-acrylic-sealant-fire-rated-hvac-adheseal.png?v=1763706120"},{"product_id":"everflex-fire-fill","title":"Everflex Fire-Fill Acrylic Sealant","description":"\u003cdiv role=\"main\"\u003e\n  \u003cp\u003eFor penetration pathways and expansion joints requiring a fire-resistant barrier, Everflex Fire-Fill Acrylic Sealant is tested in accordance with AS1530.4 and assessed to AS4072.1. This waterborne co-polymer-based intumescent sealant expands when exposed to fire, forming an inorganic plug that helps prevent fire transmission through partitions.\u003c\/p\u003e\n\n  \u003ch3\u003eHow it works\u003c\/h3\u003e\n  \u003cp\u003eEverflex Fire-Fill functions by chemical expansion under heat. When exposed to fire, the intumescent material swells to block gaps around physical penetrations and linear joints. It accommodates up to ±20% joint movement while maintaining a flexible, waterproof joint. The formula is non-slump, water-cleanable while wet, and contains no isocyanates or asbestos. It has a low volatile organic compound content of 7g\/L, meeting Green Star environmental criteria, and provides STC acoustic properties when installed in appropriate systems.\u003c\/p\u003e\n\n  \u003ch3\u003eNumbers that matter\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAS1530.4 \/ AS4072.1:\u003c\/strong\u003e Tested and assessed fire standards achieving up to a 4-hour fire rating depending on the specific joint configuration and panel thickness.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e±20% movement:\u003c\/strong\u003e Joint movement capability to absorb thermal and structural expansion without adhesive or cohesive failure.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e50mm maximum width:\u003c\/strong\u003e Certified fire rating coverage for linear gaps up to 50mm wide.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e2mm per 24 hours:\u003c\/strong\u003e Standard cure rate at 25°C and 50% humidity, with a tack-free skin time of 30 to 45 minutes.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhere to use it\u003c\/h3\u003e\n  \u003cp\u003eThis sealant adheres to most common construction substrates including concrete, aerated concrete (Hebel block), speed panel, masonry, brick, stone, plasterboard, timber, glass, aluminium, and plastics. It is suitable for:\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eExpansion joints in precast and tilt-up panels.\u003c\/li\u003e\n    \u003cli\u003eLinear gap seals in wall-to-wall and wall-to-floor configurations.\u003c\/li\u003e\n    \u003cli\u003eGap sealing around building services penetrations including cables, cable trays, metal pipes (except lead and copper), conduits, busways, and ducts.\u003c\/li\u003e\n    \u003cli\u003eDouble-sided and single-sided applications where wall integrity is adequate.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eLimitations\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eDo not use in trafficable or load-bearing joints.\u003c\/li\u003e\n    \u003cli\u003eDo not use for sealing coated metal panels such as Colourbond.\u003c\/li\u003e\n    \u003cli\u003eDo not apply to wet surfaces or when rain exposure is likely within 24 hours of application.\u003c\/li\u003e\n    \u003cli\u003eNot suitable for long-term water immersion or internal swimming pool applications (avoid exposure to chlorine levels exceeding 5ppm).\u003c\/li\u003e\n    \u003cli\u003eDo not use in totally confined spaces; the sealant requires atmospheric humidity to cure.\u003c\/li\u003e\n    \u003cli\u003eNot suitable for aquariums, structural glazing, or adhering mirrors.\u003c\/li\u003e\n    \u003cli\u003eDo not use on lead or copper.\u003c\/li\u003e\n    \u003cli\u003eStain testing is recommended prior to application on any natural stone.\u003c\/li\u003e\n    \u003cli\u003eDo not expose the sealant to cleaning agents, solvents, or alcohol, particularly during the curing phase.\u003c\/li\u003e\n    \u003cli\u003eAvoid application when moisture-vapour-transmission is emanating from the substrate, as trapped air may cause the sealant to bubble.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation and joint design\u003c\/h3\u003e\n  \u003cp\u003eJoints should ideally maintain a 2:1 width-to-depth ratio. Internal joints require a minimum width and depth of 5mm; external joints require a minimum of 12mm. For joints deeper than 10mm, use an open-cell foam backer rod (such as Adhefoam) sized 25% larger than the joint width. Where space prevents a backer rod, apply a polyethylene bond-breaker tape to prevent three-sided adhesion.\u003c\/p\u003e\n  \u003cp\u003eApply when substrate and air temperatures are between 5°C and 40°C (physical property application range is +5°C to +35°C). Fill the joint completely to avoid air entrapment. Tool dry with a moistened spatula within 5 to 10 minutes, before the surface skins. Masking tape should be removed immediately after tooling while the sealant is still wet.\u003c\/p\u003e\n  \u003cp\u003eNew concrete must be allowed to cure for at least 28 days prior to application. While porous substrates do not normally require priming, optimal adhesion on highly stressed joints or under extreme weather exposure can be achieved by priming porous surfaces with Adheseal 2001 or \u003ca href=\"\/products\/everflex-supaprime\"\u003eEverflex Supaprime\u003c\/a\u003e. For non-porous surfaces, slightly roughen the face and pre-treat with Adheseal 50A surface prep, allowing 30 minutes to 2 hours open time before applying the sealant.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Adheseal","offers":[{"title":"Single Buy","offer_id":38133897035968,"sku":"FIREFILLAC\/SSG","price":10.93,"currency_code":"AUD","in_stock":true},{"title":"Box Buy (20)","offer_id":46349641973952,"sku":"FIREFILLAC\/SSG\/BOX","price":196.8,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/files\/everflex-firefill-intumescent-sealant-adheseal.png?v=1763709354"},{"product_id":"fireban-one","title":"Bostik Fireban One Polyurethane Sealant","description":"\u003cdiv role=\"main\"\u003e\n \u003cp\u003eFor joints in insitu concrete, precast panels, blockwork, plasterboard, and fiber cement sheet requiring fire or acoustic certification, Bostik Fireban One Polyurethane Sealant provides up to a 4-hour fire rating under AS 1530.4-2014 and AS 4072.1-2005. This Australian-made, one-part intumescent sealant cures to form a tough, flexible barrier that accommodates continuous cyclic expansion and contraction in joints up to 50mm wide.\u003c\/p\u003e\n\n \u003ch3\u003eHow it works\u003c\/h3\u003e\n \u003cp\u003eFireban One Polyurethane Sealant is a low-modulus, thixotropic moisture-curing polyurethane. When exposed to fire, the intumescent formulation helps block the passage of flame and hot gases through construction joints. Its low-modulus characteristic limits stress on the bond line, allowing the cured sealant to absorb thermal expansion, wind loads, and structural settling. The non-sag paste consistency makes it suitable for vertical expansion joints in brickwork, masonry walls, and overhead panel connections. It does not support fungal growth under AS1157-1972 and remains stable under weather, rain, and UV exposure.\u003c\/p\u003e\n\n \u003ch3\u003eNumbers that matter\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003e±25% joint movement:\u003c\/strong\u003e Absorbs cyclic contraction and expansion across precast tilt-up panels and concrete slab joints without adhesive or cohesive failure.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e4-hour fire rating:\u003c\/strong\u003e Tested to AS 1530.4-2014 and AS 4072.1-2005 for fire-rated wall, floor, and linear joint systems.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e\u0026gt;900% elongation at break:\u003c\/strong\u003e High elasticity prevents the cured sealant bead from tearing during extreme structural shifting or joint widening.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e2mm per 24 hours cure rate:\u003c\/strong\u003e Standard curing window on porous substrates, achieving tack-free status in 6 to 12 hours and full cure in 7 days.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e0.5 to 6.0 lineal metres coverage:\u003c\/strong\u003e Yield per 600ml sausage ranges from 6.0 metres for a 10mm x 10mm joint down to 0.5 metres for a 25mm x 50mm joint.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWhere to use it\u003c\/h3\u003e\n \u003cp\u003eFireban One Polyurethane Sealant bonds to both porous and non-porous substrates, including:\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eInsitu concrete floors and walls, precast and tilt-up panels\u003c\/li\u003e\n \u003cli\u003eBrickwork, blockwork, and rendered masonry\u003c\/li\u003e\n \u003cli\u003eFire-rated and acoustic-rated plasterboard and fiber cement sheet\u003c\/li\u003e\n \u003cli\u003eUPVC penetrations, brass, copper, and stainless steel fittings and trays\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eLimitations\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eDo not apply to cement-based substrates within 28 days of the initial concrete pour or pour set.\u003c\/li\u003e\n \u003cli\u003eDo not use in chlorinated water, such as swimming pools, spas, or in constant salt water immersion.\u003c\/li\u003e\n \u003cli\u003eDo not use on any materials containing bitumen.\u003c\/li\u003e\n \u003cli\u003eDo not use for glazing applications.\u003c\/li\u003e\n \u003cli\u003eDo not use in trafficable joints wider than 10mm.\u003c\/li\u003e\n \u003cli\u003eDo not apply at temperatures below 5°C or above 35°C.\u003c\/li\u003e\n \u003cli\u003eDo not expose the sealant to water or alcohol before it has cured.\u003c\/li\u003e\n \u003cli\u003eDo not use wet tooling techniques, such as soapy water, during installation.\u003c\/li\u003e\n \u003cli\u003eDo not apply in joints less than 6mm in width and depth.\u003c\/li\u003e\n \u003cli\u003eIf painting, wait a minimum of 7 days. Coatings containing solvents (such as enamels or oil-based paints) may cause the sealant surface to become tacky, discolour, or crack under cyclic movement.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003ePreparation and priming\u003c\/h3\u003e\n \u003cp\u003eClean and dry all surfaces to remove laitance, oil, dust, grease, curing agents, water, or old sealants. Vacuum loose dust from joints. Priming is recommended to achieve the stated performance properties. Do not use \u003ca href=\"\/products\/methylated-spirits\"\u003emethylated spirits\u003c\/a\u003e or turps to clean joints or prep surfaces.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePorous substrates:\u003c\/strong\u003e Concrete or masonry structures not subject to water ponding or immersion do not require priming if they are clean and dry. For maximum performance or periodically immersed applications, use \u003ca href=\"\/products\/n49-primer\"\u003eBostik N49 Primer\u003c\/a\u003e.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eNon-porous substrates:\u003c\/strong\u003e Prime plastics and metallic substrates (including UPVC, brass, copper, and stainless steel) with \u003ca href=\"\/products\/n40-primer\"\u003eBostik N40 Primer\u003c\/a\u003e using the two-cloth method. Use Bostik Ultraseal for non-porous or burnished concrete.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eJoint Geometry:\u003c\/strong\u003e Install backing rod after priming to control sealant depth. Maintain a depth-to-width ratio of 1:1 for 10mm joints, and 1:2 for joints between 10mm and 50mm. Tool the sealant with a dry spatula to achieve a concave surface profile.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Bostik","offers":[{"title":"Single Buy","offer_id":39253466382528,"sku":"FIREBAN\/SSG","price":16.73,"currency_code":"AUD","in_stock":true},{"title":"Box Buy (20)","offer_id":46349641842880,"sku":"FIREBAN\/SSG\/BOX","price":301.2,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/files\/fireban-one-4hr-intumescent-joint-sealant-adheseal.png?v=1763709484"}],"url":"https:\/\/adheseal.com.au\/collections\/fire-rated-sealants-1.oembed","provider":"Adheseal","version":"1.0","type":"link"}