Unprocessed asbestos was first imported into New Zealand in the late 1930s and building products made from asbestos mixed with cement were produced over a 50-year period up until the mid-1980s. Locally manufactured asbestos-cement building products contained around 5 to 15% asbestos. Read more → Asbestos and its use over the centuriesĪsbestos, long known for its strength and resistance to fire and chemical breakdown, seemed ideal. Fires in public theatres, schools, office buildings and on ships, some involving 100s of casualties, spurred the search for a building and insulating material that was non-combustible and had low thermal conductivity. At the time, the advent of new technologies using steam, kerosene, and electricity, saw the emergence of catastrophic new fire hazards. Asbestos came into widespread use in the early 1900s.
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