Gallery 6 – Paper and Felts
Asbestos Paper & Felts
Used for electrical/heat insulation of electrical equipment, wiring and plant. Also used in some air conditioning systems as insulation and acoustic lining. Asbestos paper has also been used to reinforce bitumen and other products, and as a facing/lining to flooring products, combustible boards, and flame-resistant laminate. Corrugated cardboard has been used for duct and pipe insulation. Bitumen-based roofing felts.
Asbestos content and type / date last used:
Asbestos paper can contain 100% chrysotile (white) asbestos, but may be incorporated as a lining, facing or reinforcement for other products – for example, roofing felt and damp proof courses, steel composite wall cladding and roofing, and vinyl flooring. Asbestos paper is also sometimes found under man made mineral fibre (MMMF) insulation on steam pipes. For felts in a bitumen matrix, content is around 8% chrysotile (white) asbestos.
Ease of fibre release and product names:
Paper materials – if not encapsulated/combined with vinyl, bitumen, or bonded in some way – can be easily damaged, and can release fibres when subject to abrasion or wear. Asbestos paper, asbestos felt, roofing felt, etc.