Promat SUPALUX is a calcium silicate board reinforced with selected fibres and fillers. Class 0 Buildings Regulations classification. PROMATECT®-200. The ultimate and original high performance fire protection board You can trust SUPALUX® on every level. 15mm. Weight: 70. 2) 12mm Promat SUPALUX® board fixed to the ends of the roof members using 50mm nails at nominal 200mm centres or. Supalux can be used in a wide variety of building applications such as timber and steel frame, mezzanine floor installations, shaft-wall and doors. 12mm. 12mm. Available in the 6mm thickness to help minimize the transition between floors. It is the only Promat board to have. Promat Supalux Board 2440mm x. 38kg. 78kg. £ 297. 1. 25. £178. With Glasroc X Sheathing Board it's quick and easy to protect the frame so that interior work can start straight away. The Passive Fire Protection Handbook | 2017 SUPALUX® — 2-hour fire rated solid partition 31 SUPALUX® ceiling membrane SUPALUX® — 1-hour fire rated ceiling membrane 32 SUPALUX® — 1-hour fire rated ceiling membrane 33 SUPALUX® — 2-hour fire rated ceiling membrane 34 SUPALUX® — 2-hour fire rated ceiling membrane 35 SUPALUX® — 4-hour fire rated ceiling membrane 36 General Applications: Structural steel fire protection Internal drywalls Internal lining to external walls Suspended and self-supporting hanger free ceilings Self-supporting airduct or cladding to steel sheet metal ducts Enclosures to E&M services Smoke screens Flame barrier Parapet & spandrel walls Upgrading fire performance of reinforced concrete Supalux Fire Board 12mm is effective in high-temperature environments and has been given a fire classification of A1, which is the best possible rating. This Supalux. 44m²)This 12. Hover Over to Zoom In. The company joined the SWARCO family in summer 2021 and is in the unique position of being both the road marking manufacturer and the application. Leaves must be hung on three brass or steel buttPROMATECT®-L. 12mm Cembrit Cempanel. top of page. It is simple to work and fix, easy to decorate, resistant to the. . 5mm Square Edge. Fire Rating (Reaction to Fire): A2 (Limited combustibility) 12. It can be left undecorated or can be easily decorated with paints, wallpapers. It offers good thermal insulation and stability during fire exposure and is easily workable with machine and hand tools. 25. Promat SUPALUX? is a strong, lightweight non-combustible building board for use in many fire resisting and general purpose building applications. 1 of 1. It is formulated without inorganic fibres, does not contain formaldehyde and can provide up to 240 minutes fire resistance. I am going to give it a go at the weekend and have bought some Ceramix TC to stick the board on with which will withstand tempretures upto 1250 0c. promat uk ltd - HimerpaSupaflex (Multi-Purpose) RCM Multipurpose is a highly versatile cellulose fibre cement building board, offering excellent strength, weathering and acoustic properties. Coverstrips at horizontal board joints fastened using M4 x 16mm long self-tapping. VERMICULUX ® -S is an A1 non-combustible calcium silicate board which provides up to 240 minutes fire protection to structural steel. Nick1c. Performance characteristics are not degraded by age or moisture. Item Thickness. 12mm Promat PROMAFOUR Fire Resistant Board 1200mm x 1200mm is a strong non-combustible calcium silicate fire resistant board formulated without inorga. Infill: Rock wool minimum 60mm thick x 23kg/m 3. Board Coverage: 2. It is a high performance board which can be used in constructions providing up to 240 minutes fire protection. Click & Collect your purchase in-store or we'll deliver it to you. Quantity: UK delivery time: Promat SUPALUX is a strong, lightweight, non-combustible fire protection building board offering up to 240 minutes fire resistance. Add to Quote list. This Supalux sanded fire protection building board from Promat is a strong and lightweight building board offering 30-240 minutes of fire protection. 5mm Square Edge. Thermal Conductivity: 0. Fire protection board. Related products. FIRE PERFORMANCE:Timber studwork, minimum of 63mm x 50mm at 610mm centres, but sized to suit the dormer construction bySupalux is commonly used for internal partitions, external walls, internal walls, ceilings and non-combustible linings. £ 297. 12mm SUPALUX Promat 2440x1220. Promat SUPALUX 2500 X 1250 X 25MM. promat uk ltd - Himerpa . 1400 Te mperature (°C) Time (minutes) 1200 1080 1029 680678 680 986 925 822 761 658 250 294 556 5881 SUPALUX® board 15mm thick for FRL of 120 minutes 25mm thick for FRL of 240 minutes 2 Steel channels 50mm x 50mm x 0. Collection. Buy Supalux Thermal Insulating Sheet, 300mm x 295mm x 12mm SUPA 12 or other Thermal Insulation online from RS for next day delivery on your order plus great service and a great price from the largest electronics components. Delivery. Resistant to moisture and impact. Add to Basket. Board Coverage: 2. Stagger joints by at least 300mm, joints need not coincide with a joist. cement board fire rating uk 0. By Nick1c May 9, 2020 in Building Materials. 18. Supalux® is a non-combustible fire resistant board capable of 240 minutes fire protection and is made from calcium silicate, reinforced with selected fibres and fillers. Ex VAT:£ 247. - Compliant with all relevant EU legislation (ETA No. Promat SUPALUX®A High Performance, Non-Combustible Fire Protection Board. SUPALUX® can be left undecorated or easily. Glasroc Multi-Board Class O 2400mm x 1200mm x 12. Finishes should be applied in accordance with Promat TDS 056. FIRE BOARD 12mm 1220 x 2440 £50. Class 0 Buildings Regulations classification. 20mm Promat PROMATECT 250 Calcium Silicate Board. 9. Easy to cut, drill and work. United Kingdom-based shop. £0. With an A1 non-combustible classification Multipurpose offers the highest level of fire rated performance making it an. SUPALUX® — 2 & 4-hour fire rated building services enclosure 40. It also provides thermal conductivity (approximately) at 20°C of 0. Fermacell Powerpanel H2O Board 1200mm x 1200mm x 12. Select collection branch for local availability. Promat Supalux Board 2440mm x 1220mm x 12mm Square Edge Sign in or. Log in to buy. 7mm veneers to both faces, bonded with PVA adhesive), set in Promaseal Intumescent Sealant and held in place with 11mm hardwood quadrant beads skew nailed with 32mm steel pins at 200mm centres. Promat Supalux Board 2440mm x 1220mm x 12mm Square Edge. £243. PROMATECT®-H is a non combustible matrix engineered mineral board reinforced with selected fibres and fillers, used in the protection of concrete columns and beams, and upgrades to concrete slabs and walls PROMATECT®-H combines excellent fire resistance with high strength, and is resistant to the effects of moisture. 2. Fire Board and Fire Boarding Alternative Supalux Masterboard. £ 267. Fire Stopping. Ceiling: 12mm Promat SUPALUX® fixed with M4 woodscrews at 300mm centres to each joist, select screw length to provide at. Ex VAT:£ 99. 74m2. V. Ex VAT:£ 247. 77 (£324. SUPALUX ® is a non-combustible calcium silicate board reinforced with selected fibres and fillers. Weight/m2: 16kg. Recommended Posts. View. 12mm PROMATECT®-H Promat Calcium Silicate. Screw Fixing Pilot holes should be pre-drilled not less than 12mm from the edge of the boards and countersunk if required. battens before securing Promat SUPALUX®. £243. TDS155 - Supalux EI60 and EI120 Shaftwall System_January2022 v1. The ultimate high performance fire protection board from Promat. STS quickly responded by finding a K-Rend approved installer, namely Renduk Developments Ltd. Open the catalog to page 6. In Stock 3-5 Days. Promat SUPALUX is an A1 non-combustible calcium silicate board reinforced with selected fibres and fillers which can be used for fire protection of ceilings and protected zones. Supalux Fire Board 12mm is effective in high-temperature environments and has been given a fire classification of A1, which is the best possible rating. Add to Quote list. x 36mm long drywall screws at 250mm centres. 2m x 12mm. A strong and lightweight building board offering 30-240 minutes of fire protection, this Promat Supalux building board delivers 30 plus years of proven performance across many building applications. 50 per sheet Intumescent Sealant £5. Promat SUPALUX boards are available from us in a number of thicknesses to. Promat Masterboard is a versatile class 0 building board suitable for both internal and semi exposed applications. Horizontal board joints fastened using M4 x 16mm long self-tapping screws at 300mm centres on both side of the joint. Follow us on. Add to Quote Compare. Promat SUPALUX® fillet/coverstrip, 50mm wide, each side 6mm thick over studs and at horizontal board joints. £ 297. PROMATECT®-100. SUPALUX ® is an A1 Non Combustible (EN13501-1) calcium silicate board reinforced with selected fibres and fillers. PROMATECT®-200 is a non-combustible mineral bound fibre reinforced calcium silicate board, based on PROMAXON®-technology. GTEC Base Board 1220mm x 900mm x 9. INTUMESCENT STRIP: 15mm x 4mm PVC encased Palusol 100 strip to both. 88sqm Villaboard FC Lining at Bunnings. This video demonstrates a step by step guide on how to install a Promat SUPALUX® & MASTERBOARD® product. The thickness of the wall boards perfectly matches other board material and therefore creates seamless borders. 15mm. fire resisting constructions 60 minutes fire resistance - timber frame Framing: Nominal 63mm x 50mm timber studs at maximum 610mm centres. Newcastle upon Tyne. Promat is active in more than 40 countries around the world. 20mm Promat PROMATECT 250 Calcium Silicate Board. 1mm and 25. SUPALUX® THE HIGH PERFORMANCE BOARD Promat MASTERBOARD® is a versatile Class 0 building board suitable for use in a wide range of both internal and semi-exposed applications. Up to 240 minutes fire resistance. Verified by manufacturer 4 months ago. Horizontal board joints backed with Promat SUPALUX® coverstrip 75mm wide x 9mm thick. Retail price. 03457 201201. Fire resisting walls used for partitioning buildings and enclosing compartments will be required to provide a barrier to the passage of fire from one side or the other and must. 75 . Promat TLFR BOARD. Enviroboards fire protection board is a fraction of the cost of alternatives such as Supalux, Masterboard, Asbestolux and Glasroc. Steel frame buildings need protection from the elements before fit-out can begin. There are companies such as Promat that offer additional thicknesses such as 19. Watch video. 38. It is the only Promat board to have. £203. Wood. The best result is the 'TIMCO 1141 Black Timloc Push-in Soffit Vents Pack of. 30 plus years proven performance. R-Value: 0. Performance characteristics are not degraded by age or moisture. Interestingly, Supalux has a significantly lower density, at 950 kg/m³, while Multipurpose weighs 1380 kg/m³, which is 190 kg/m³ more than Y-Wall's 1200 kg/m³ and 430 kg/m³ more than Supalux itself. VAT. Length: 1200mm. Facing: 9mm Promat SUPALUX®boards fixed to both sides with 50mm round head nails or M4 x 50mm screws at nominal 300mm. Co. 330W/mK. Appropriate for all types of tile, including vinyl, ceramic and natural stone. 12mm 2440mm x 1220mm 46 136. long self-tapping screws at nominal 300mm centres on both. 12 mm. Panels: 12mm SUPALUX® or 12mm MASTERBOARD® faced (with or without 0. Building. Promat SUPALUX® – Applications Overview. Free Shipping over $35. Versapanel ® may be confidently used in wet areas. External Block Wall Block Ties PROMASEAL® Intumescent SUPALUX® Protection Sealant Fire Resistant Block Wall Maximum Wind Post Section Factor A/V (m-1) Thickness of Supalux Protection 107 9 mm 158 12 mm TABLE 2 1-SIDED WIND POST ENCASEMENT12mm SUPALUX® or 12mm MASTERBOARD® (faced with or without 0. A1 Building Boards! 12mm CP Board! Fire Cavity Barriers system! Fire rated building board. 56 £148. It is important to ensure that the joints between the two board types are staggered. 1. 7mm veneers to both faces, bonded with PVA adhesive), set in Promaseal Intumescent Sealant and held in place with 11mm hardwood quadrant beads skew nailed with 32mm steel pins at 200mm centres. Chisel point staples, 50mm x 12. Glasroc Multi-Board Class O 2400mm x 1200mm x 10mm Square Edge. Multiple applications. Guide Price: £196. Various sizes available. This certificate is the property of Warrington Certification Limited, part of Exova (UK) Ltd. These boards wont physically deteriorate when used in damp or. Co. £208. £243. The Avon Group Manufacturing board or alternative system to provide 30 minutes fire protection with vapour barrier. SUPALUX ® can be left undecorated or easily finished with paints,. Create your website today. Promat SUPALUX is a non-combustible calcium silicate board reinforced with selected fibres and fillers which can be used for fire protection of internal partitions and external. Fastened to steel framework with M4 x 25mm self-tapping screws at convenient centres. Bristol BS20 0NE, Tel: 0800 373 636. Zip pay and Paypal available to purchase products online. Supalux Fireboard Supalux Board Fire Proof Board Fire Board 8ft x 4ft Merchanting. Width: 1220mm. Showing 1—1 items of 1. SUPALUX, founded in 1974, is a vertically integrated road marking group, specialising in the manufacture, supply and application of high-performance road marking systems in Australia. 22m x 2. 3. 04m2K/W. promat uk ltd - HimerpaThe external wall assemblies comprise Supalux board fastened to a steel supporting framework that is, in turn, supported by horizontal steel sheeting rails, and with stone wool insulation within the cavity. Non-combustible reinforced calcium silicate fire protection board. This site was designed with the . 2 Download. The 12 mm wall boards serve as a substrate for tiled walls or can be painted or plastered over. Office: Exova (UK) Limited, Lochend Industrial Estate, Newbridge, Midlothian EH28 8PL United Kingdom. 7mm, 19. 68 per sheet. Can also withstand high. 1. Fire Barrier Products. Ideal for use when a facia system is unable to repaired and a full replacement is needed. Promat SUPALUX® boards, each side 9mm thick. We would like to show you a description here but the site won’t allow us. Local seller. 15 mm. Weight/m2: 14. Promat SUPALUX® fillets, 75mm wide x 9mm thick. Open the catalog to page 6. £41. Add to Wish List Add to Compare. . With an A1 non-combustible classification Multipurpose offers the highest level of fire rated performance making it an. promat uk ltd - Himerpa12mm Promat Supalux The Fire Protection Board For use in many fire resisting and general purpose building applications. Share More sharing options. Damp or humid conditions. Provides coverage of 2. Vertical board joints coincide with the studs12mm Promat Supalux Fire Protection Board A1 Fire Rated. Promat SUPALUX is an A1 non-combustible calcium silicate board reinforced with selected fibres and fillers which can be used for fire protection of ceilings and protected zones. 12mm Promat Supalux Fire Protection Board . The rebating, which is machined along the two long edges (or all four edges for ceilings), enables seamless j ointing of boards to be achieved. Handmade Promat Masterboard VAT INCLUDED Thicknesses available: 6mm, 9mm, 12mm Standard Sizes: 2440 mm x 1220 mm (8ft x 4ft) Learn more about this item Delivery and return policies. SUPALUX® is off-white in. Heat Accumulation Fire Rings. Delivery: IN STOCK. £0. SUPALUX is also moisture resistant and can be installed before wet trades are completed and the building is weather-tight. 12mm Multipurpose boards are suitable for the following construction types:. Gordano House, Marsh Lane, Easton-in-Gordano. Details. 6mm 9mm 12mm. 12mm Promat PROMAFOUR board is a 1250x1250mm strong, lightweight, non-combustible cement bonded calcium silicate based insulation. 45 £192. Ex VAT:£ 247. 71. 3. 8mm, 38. Fire Board and Fire Boarding Alternative Supalux Masterboard. 9mm thick SUPALUX® board, or alternative system to provide 30 minutes fire protection, with vapour barrier. UK delivery time: 2 - 3 days. Colour : Off-white. It is formulated without inorganic fibres, does not contain formaldehyde and can provide up to 240 minutes fire resistance. When installed in a soffit applications it is expected to have a sufficient drip-edge detail or downstand included to ensure no-wind driven rain tracks along the underside of the ceiling construction. 30. 25. Company Registration No: 01647362. Promat SUPALUX is a strong, lightweight non-combustible building board for use in many fire resisting and general purpose building applications. 2. Features and benefits of Promat Supalux Fire Protection Board 12mm: 30 - 240 minutes fire resistance; A1 non-combustible according to EN13501-1;In a transaction closed in early May 2021 between Supalux Managing Director Jonathan Vyse and SWARCO Speaker of the Board and COO Michael Schuch and CFO Günther Kitzmüller, SWARCO and Supalux form a partnership to further strengthen their road marking systems business together in Australia. SUPALUX is also moisture resistant and can be installed before wet trades are completed and the building is weather-tight. Supalux is a -Class 'O' & A1- non-combustible calcium silicate fire protection board off-white in colour with a smooth sanded face and a lightly textured reverse face. Price: £ 151. Features and benefits of Promat Supalux Fire Protection Board 12mm: 30 - 240 minutes fire resistance; A1 non-combustible according to EN13501-1; 30 plus years proven performance; Damp or humid. We offer sustainable solutions that protect lives and assets, enhance comfort, optimise process efficiency, minimise the loss of space and. 60MIN ROCWOOL RWA45 BLACK TISSUE FACED Rockwool RWA45 Black Tissue Faced 2 Sides Insulation Slab is a non-combustible fire-resistant stone wool insulation used for concrete car park soffits. £203. Handmade Promat Masterboard VAT INCLUDED Thicknesses available: 6mm, 9mm, 12mm Standard Sizes: 2440 mm x 1220 mm (8ft x 4ft) Learn more about this item Delivery and return policies. 12mm SUPALUX Promat is a high performance, lightweight, non-combustible building board for use in many fire resisting and general purpose building applications. Supalux board is known to have a low prevalence for containing asbestos fibres, however, although seemingly rare, samples on occasion do test positive for asbestos. 4 x 1. Buy Supalux Thermal Insulating Sheet, 300mm x 295mm x 12mm SUPA 12 or other Thermal Insulation online from RS for next day delivery on your order plus great service and a great price from the largest electronics components. To check you are using the best board for your project or to see the full range of Knauf plasterboards stocked in Wickes please click on ‘Technical sheet 2’ below; Data sheets. 4. By on May 5, 2023 top track and field recruits 2023 on May 5, 2023 top track and field recruits 2023The 100% recyclable board is also available in bespoke sizes for improved productivity and reduced jointing. 4. No other board can deliver the same peace of mind with 30 plus years of proven performance. 30 plus years proven performance. Weight: 15. Smooth finish on one face with a sanded reverse face. 75kg. Collection only due to size and weight. DOP Sheet 1 - Knauf Fire Panel Tapered Edge - 12. The width of the fillets are such that they will overlap each supporting member 5mm on each side. A1, non-combustible. It is an alternative to cement particle board. Retail price. A strong and lightweight building board offering 30-240 minutes of fire protection, this Promat Supalux building board delivers 30 plus years of proven performance across many building applications. Item#: 60407. 5 out of 5 stars. Tel: 0800 373 636 (Monday to Thursday. 50 per sheet . 3 (6% moisture) Flexural Strength (N/mm2) (average of 2 directions) 10. Promat Supalux Fire Protection Board 12mm x 1220mm x 2440mm. 6mm Promat MASTERBOARD is made from calcium silicate reinforced with selected fibres and fillers. Magply boards can cope with up to 80kg/m2 of tile and tile adhesive on our 12mm board. Intumescent Sealant 310ml £5. Knauf AQUAPANEL Cement Board Outdoor; RCM Y-Wall Sheathing Board; Siniat Bluclad Building Board; Calcium Silicate Boards: Kemwell FireKem FP-900; Promat Supalux; Boards suitable for Internal Applications: Cement Fibre Boards: fermacell Powerpanel H2O; James Hardie HardieBacker; Knauf AQUAPANEL Cement Board Skylite; Knauf. Ceiling: 12mm Promat SUPALUX® fixed with M4 woodscrews at 300mm centres to each joist, select screw length to provide at. 00 per cartridge. Boards Supalux board of nominal thickness 9mm on each face of timber framework. board has advantages over other types of board materials due to its strength, workability and durability coupled with main attributes:. 2 - 3 WORKING DAY DELIVERY. includes Promat Masterboard®, that provides 30 minutes fire resistance as well as water resistance, and Promat Supalux® board, a. 71. Boards Supalux board of nominal thickness 9mm on each face of timber framework. SUPALUX® THE HIGH PERFORMANCE BOARD Promat MASTERBOARD® is a versatile Class 0 building board suitable for use in a wide range of both internal and semi-exposed applications. 4. Use category. Buy 12mm Supalux Promat, a calcium silicate board with up to 240 minutes fire resistance and Class 0 Buildings Regulations classification. Finish. 6mm 9mm 12mm. Visit your local store for the widest range of products. promat uk ltd - HimerpaThe Promat SUPALUX is a strong high-performance fire protection board suitable for high-temperature environments. 25. Main Advantages. Browse our latest Thermal Insulation offers. SUPALUX ® is an A1 Non Combustible (EN13501-1) calcium silicate board reinforced with selected fibres and fillers. 67 / each. 12mm Versapanel Cement Bonded Particle Board is an innovative building material that is durable and flexible, meeting the requirements of moisture tolerance and fire resistance. Open the catalog to page 1. Free Delivery on orders over £650. It's the only board to have 30 years proven experience with a BBA certificate to prove it's fire resistance. Menu Shop by room. 12mm Promat Supalux A1 Fire Rated is an original fire protection board Class A1 with up to 240 minutes fire rating and improved moisture resistance that can be used in steel and timber frame, mezzanine floors, shaft-wall and doors installations. 1,858kg 12 mm. Thermal Conductivity: 0. Show. 27 (£235. Call Us Now: 08455 208880. 5. Overview12mm Promat Supalux Fire Protection Board A1 Fire Rated. Horizontal board joints backed with Promat SUPALUX® coverstrip 75mm wide x 9mm thick. 5mm Square Edge. Promat Supalux Fire Protection Board 15mm x 1220mm x 2440mm. Fastened using M4 x 25mm long self-tapping screws at nominal. Promat TLFR BOARD® SDS En v1. Thermal Conductivity: 0. Enviroboards – The Versatile Board Solution . 5mm dia. Sale pricePromat TL Board® Typical Properties Calcium Silicate Dry Density (kg/m3) 1300 Mass (kg/m2) for 6mm 8. It can provide up to 30 minutes fire protection and will not deteriorate when used in damp and humid conditions. Description. 71. This calcium silicate composition comes reinforced for added durability. Coverstrips at horizontal board joints fastened using M4 x 16mm long self-tapping. Cataproduct found 9000 products for the search term 'supalux soffit board' at 20 shop(s), including Amazon. It is formulated without inorganic fibres and does not contain formaldehyde. 25. PROMATECT® -250 soldiers, 120mm x 12mm thick behind the horizontal joints in the casing. It’s a 8x4 cement board iv used it before inside fire places, iv had the same thing it’s very very high suction. Inc. They will not physically deteriorate when used in damp or humid conditions. FireKem FP-900® provides good acoustic reduction performance of between 26-49dB. Non-combustible (A1 Classification) 60 - 240 minutes Fire Resistance;. This Supalux sanded fire protection building board from Promat is a strong and lightweight building board offering 30-240 minutes of fire protection. Its calcium silicate composition offers improved moisture resistance and suitability for application within high temperature environments. This certificate is the property of Exova (UK) Limited trading as Warrington Certification Reg. 63 Inc VAT. 6mm, 9mm, 12mm Standard Sizes: 2440mm x 1220mm (8ft x 4ft) 1220mm x 1220mm (4ft x 4ft) 1220mm x 610mm (4ft x 2ft) 610mm x 610mm (2ft x 2ft)Glasroc Multi-Board Class O 2400mm x 1200mm x 6mm Square Edge. Description. . Enter postcode for local availability. £243. They can be used for example to protect structures (steel, concrete, timber and composite), create fire compartmentation and for ducts that control the heat and smoke during a fire. 5-ft x 2. This calcium silicate composition comes reinforced for added durability and offers a proven performance of 30 plus years. 12mm Promat Supalux Fire Protection Board A1 Fire Rated. 40 £49. These particular Supalux samples piqued our. Glasroc H TileBacker 12. Delivery. 31. A Cheaper Alternative to Supalux, Masterboard and Glasroc. 7. Popular Searches. If it is not freed by just removing the screw then I would leave it for a specialist. A safe reliable, robust chimney breast insulation system, developed to resist continuous high temperatures of up to 1000°C. if you need: London - Birmingham - Hull - Manchester INDEX Building Boards Supalux 4 Masterboard 5 Hydropanel 6 Fermacell 7 Cement Bonded Particle Boards 8-9 Cemboard 10. SUPALUX ® is off-white in colour and has a smooth finish on one face with a sanded reverse face. VAT) Quick view. Ex VAT:£ 247. 74m2. FireKem FP-900® is a chemically inert calcium silicate board, unaffected by contact with most chemicals and resistant to dilute acids and alkalis. 80.