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Gutters and downspouts are used to catch rain water as it falls and to discharge it away from houses and buildings. When gutters are clogged or downspouts are broken, rainwater is absorbed by the soil near the foundation, increasing hydrostatic pressure. Weeping tile is a porous plastic drain pipe installed around the perimeter of the house ...
Super black is a surface treatment developed at the National Physical Laboratory (NPL) in the United Kingdom. It absorbs approximately 99.6% of visible light at normal incidence, while conventional black paint absorbs about 97.5%. At other angles of incidence, super black is even more effective: at an angle of 45°, it absorbs 99.9% of light.
"A modern Tudorbethan" house with uPVC gutters and downspouts, fascia, decorative imitation "half-timbering", windows, and doors PVC is widely and heavily used in construction and building industry, [ 9 ] For example, vinyl siding is extensively is a popular low-maintenance material, particularly in Ireland , the United Kingdom, the United ...
A standard black oxide is magnetite (Fe 3 O 4), which is more mechanically stable on the surface and provides better corrosion protection than red oxide Fe 2 O 3. Modern industrial approaches to forming black oxide include the hot and mid-temperature processes described below. Traditional methods are described in the article on bluing. They are ...
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Plastic coating is a term that is commonly used in technology but is nevertheless ambiguous. It can be understood to mean the coating of plastic (e.g., metallization of plastics [ 1 ] ) or the coating of other materials (e.g., electrical cable ) with plastics.
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