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The naturally high pH of mineral wool makes them initially unsuitable to plant growth and requires "conditioning" to produce a wool with an appropriate, stable pH. [12]: 16 Conditioning methods include pre-soaking mineral wool in a nutrient solution adjusted to pH 5.5 until it stops bubbling.
Wool insulation commonly comes in rolls of batts or ropes with varied widths and thicknesses depending on the manufacturer. Generally, wool batts have thicknesses of 50 mm (2 in) to 100mm (4 in), with widths of 400 mm (16 in) and 600 mm (24 in), and lengths of 4000 mm (13 ft 4 in), 5000 mm (16 ft 8 in), 6000 mm (20 ft) and 7200 mm (24 ft).
Wood wool boards are rigid and very strong. Their thermal conductivity is higher than other insulation material between 0.070 and 0.100 W/(m.K) compared with mineral wool insulation materials to approximately 0.040 W/(m.K). But their specific thermal capacity and therefore summer heat insulation is higher than other materials, e.g. when ...
Rockwool A/S (or AS), [6] also known as the ROCKWOOL Group, [3] is a Danish multinational manufacturer of mineral wool products headquartered in Hedehusene, Greater Copenhagen, Denmark. The company's R&D unit, employing 100 people as of 2016, is co-located with the headquarters in Copenhagen.
This is an accepted version of this page This is the latest accepted revision, reviewed on 14 January 2025. Textile fiber from the hair of sheep or other mammals For other uses, see Wool (disambiguation). Wool before processing Unshorn Merino sheep Shorn sheep Wool is the textile fiber obtained from sheep and other mammals, especially goats, rabbits, and camelids. The term may also refer to ...
Usually made from rock (basalt, diabase) or iron ore blast furnace slag. Some rock wool contains recycled glass. Nonflammable. Fiberglass. Made from molten glass, usually with 20% to 30% recycled industrial waste and post-consumer content. [14] Nonflammable, except for the facing (if present).
Excelsior, or wood wool. Wood wool, known primarily as excelsior in North America, is a product made of wood slivers cut from logs. It is mainly used in packaging, for cooling pads in home evaporative cooling systems known as swamp coolers, for erosion control mats, and as a raw material for the production of other products such as bonded wood wool boards.
Parts of a Merino fleece Throwing a freshly shorn fleece onto a wool table for skirting and classing. Wool classing in Australia, c. 1900. Wool classing is the production of uniform, predictable, low-risk lines of wool, carried out by examining the characteristics of the wool in its raw state [1] and classing (grading) it accordingly.