Asbestos gallery

 

Gallery 4 – Asbestos Textiles

Asbestos Ropes Yarns & Strings

Location/use:

Used as lagging on pipes, jointing and packing materials, and as heat/fire-resistant boiler, oven and flue sealing. Caulking in brickwork. Plaited asbestos tubing in electrical cables. Asbestos string was widely used for sealing hot water radiators.

Asbestos content and type / date last used:

Crocidolite (blue) and chrysotile (white) asbestos were widely used due to the length and flexibility of fibres. Other types of asbestos have also occasionally been used in the past. Chrysotile (white) asbestos was used alone since at least 1970. Asbestos content is approaching 100%, unless combined with other fibres.

Ease of fibre release and product names:

Weaving reduces the fibre release from products – but abrading or cutting the materials will release fibres. Products are likely to degrade if exposed, and become more friable with age. If used with caulking, fibres will be encapsulated, and are less likely to be released.

Asbestos Cloth

Location/use:

Thermal insulation and lagging – including fire-resistant blankets, mattresses and protective curtains, gloves, aprons, overalls, etc. They were sometimes aluminised to reflect heat.

Asbestos content and type / date last used:

All types of asbestos have been used in the past. Since the mid-1960s, the vast majority has been chrysotile (white) asbestos. Asbestos content is approaching 100%.

Ease of fibre release and product names:

Fibres may be released if the material is abraded.

Asbestos Gaskets & Washers

Location/use:

Used in domestic hot water boilers and industrial power and chemical plant.

Asbestos content and type / date last used:

Content varies, but usually around 90% asbestos. Crocidolite (blue) asbestos was used for acid resistance, and chrysotile (white) asbestos was used for chlor-alkali. Some gasket materials will continue to be used after asbestos prohibition takes effect.

Ease of fibre release and product names:

May be dry and easily damaged when removed. Mainly a problem for maintenance workers. Klingerit, Lion jointing, Permanite, CAF (Compressed Asbestos Fibre).

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