ASBESTOS CONTAINING MATERIALS

1 ASBESTOS productLocation / useAsbestos content and type / date last usedEase of fibre release and product namesLoose insulationBulk loose fill, bulkfibre-filled mattresses,quilts and jiffy bag -typeproducts for soundinsulationBulk loose fill insulation isnow rarely found but maybe encounteredunexpectedly, DIY lostinsulation and fire-stoppacking around cablesbetween and quilts usedfor thermal insulation ofindustrial boilers were filledwith loose bags/sacks werealso loose-filled and usedfor sound insulation underfloors and in pure ASBESTOS except for and quilts were usually filled withcrocidolite or chrysotile.

2 Acoustic insulationmay contain crocidolite or ASBESTOS may readily become airborneif disturbed. If dry, these MATERIALS can giverise to high may deteriorate or be easily damagedby repair work or accidental coatingsDry applied, wetapplied and trowelledfinishThermal and anti-condensation insulation onunderside of roofs andsometimes sides ofindustrial buildings andwarehouses. Acousticinsulation in theatres, hallsetc. Fire protection onsteel and reinforcedconcrete beams/columnsand on underside of of target areais coatings usually 55%-85% asbestoswith a Portland cement binder.

3 Crocidolitewas the major type until 1962. Mixture oftypes including crocidolite until mid- spray applications were used up surface hardness, texture and ease offibre release will vary significantly dependingon a number of factors. Sprays have a highpotential for fibre release if unsealed,particularly if knocked or the surface isabraded or delaminates from the underlyingsurface. Dust released may then accumulateon false ceilings, wiring and ventilationsystems. Limpet (also used for non- ASBESTOS sprays). ASBESTOS productLocation / useAsbestos content and type / date last usedEase of fibre release and product namesThermal insulationHand-applied thermallagging, pipe andboiler lagging, pre-formed pipe sections,slabs, blocks.

4 Alsotape, rope, corrugatedpaper, quilts, felts, andblanketsThermal insulation ofpipes, boilers, pressurevessels, calorifiers types of ASBESTOS have been used in lagging until was phased out by themanufacturers during the 1970s. Contentvaries 6-85%. Various ad hoc mixtures werehand-applied on joints and bends and piperuns. Pre-formed sections were widely used, 85% magnesia contained 15% amosite, Caposil calcium silicate slabs and blockscontained 8-30% amosite while Caposite sections contained ~85% amosite. Blankets,felts, papers, tapes and ropes were usually100% ease of fibre release often depends onthe type of lagging used and the surfacetreatment.

5 Often will be encapsulated withcalico and painted ( PVA, EVA, Latex,bitumen or propriety polymer emulsions orPVC, Neoprene solutions), Decadex finish is a propriety polymer emulsion. Aharder chemical-/weather-resistant finish isknown as Bulldog . ASBESTOS boards Millboard Millboard was used forgeneral heat insulation andfire protection. Also usedfor insulation of electricalequipment and was used in some millboardmanufacture between 1896 and 1965; usuallychrysotile. Millboards may contain 37-97% ASBESTOS , with a matrix of clay and Millboard has a high asbestoscontent and low density so is quite easy tobreak the surface is subject to abrasion andwear.

6 Millboard ASBESTOS boardsInsulating boardUsed for fire protection,thermal and acousticinsulation, resistance tomoisture movement andgeneral building in service ducts,firebreaks, infill panels,partitions and ceilings(including ceiling tiles), roofunderlay, wall linings,external canopies andporch used for some boards up to 1965,amosite up to 1980, when 15-25% amosite or a mixture ofamosite and chrysotile in calcium boards and some marine boardscontain up to 40% can be readily broken, giving significantfibre release. Also significant surface releaseis possible by abrasion, but surface is usuallypainted or plastered.

7 Sawing and drilling willalso give significant releases. Asbestolux , Turnasbestos ,, LDR , ASBESTOS wallboard , insulation board .Marine boards known as Marinite or Shipboard . ASBESTOS productLocation / useAsbestos content and type / date last usedEase of fibre release and product namesAsbestos boardsInsulating board incores and linings ofcomposite productsFound in fire doors,cladding infill panels,domestic boiler castings,partition and ceilingpanels, oven linings andsuspended floor as thermal insulationand sometimes as used for some boards up to 1965,amosite up to 1980, when amosite or a mixture of amosite be broken by impact.

8 Significant surfacerelease possible by abrasion, but usuallypainted or plastered. Sawing and drilling willalso give significant releases. Asbestolux Paper, felt andcardboardUsed for electrical/heatinsulation of electricalequipment, wiring andplant. Also used in someair conditioning systems asinsulation and acousticlining. ASBESTOS paper hasalso been used to reinforcebitumen and otherproducts, combustibleboards, flame-resistantlaminate. Corrugatedcardboard has been usedfor duct and paper can contain ~100% chrysotileasbestos but may be incorporated as a lining,facing or reinforcement for other products, roofing felt and damp-proof courses,steel composite wall cladding and roofing(see ASBESTOS bitumen products below)

9 , paper is also sometimes foundunder MMMF insulation on steam MATERIALS , if not encapsulated orcombined within vinyl, bitumen, or bonded insome way, can easily be damaged andrelease fibres when subject to abrasion orwear ( worn flooring surface with paperbacking). ASBESTOS paper, paper felt, Novilon flooring,Durasteel laminates, vinyl ASBESTOS tile,roofing felt and damp-proof course etc. Pax felt . Viceroy (foil coated paper). Serval . ASBESTOS productLocation / useAsbestos content and type / date last usedEase of fibre release and product namesTextilesRopes and yarnsUsed as lagging on pipes(see above), jointing andpacking MATERIALS and asheat-/fire-resistant boiler,oven and flue in ASBESTOS tubing inelectric and chrysotile were widely useddue to length and flexibility of fibres.

10 Othertypes of ASBESTOS have occasionally beenused in the past. Chrysotile alone since atleast content approaching 100% unlesscombined with other fibresWeaving reduces fibre release from products,but abrading or cutting the MATERIALS willrelease fibres, likely to degrade if exposed,becoming more friable with age. If used withcaulking, fibres will be encapsulated and lesslikely to be insulation andlagging (see above),including fire-resistingblankets, mattresses, andprotective curtains, gloves,aprons, overalls , gloves, etc weresometimes aluminised toreflect types of ASBESTOS have been used in thepast.