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Trailer skirts comprise a pair of panels affixed to the lower side edges of a trailer, running most of the length of the trailer and filling the gap between the forward and rear axles. Trailer skirts are typically constructed of aluminum , plastic , or fiberglass , with plastic the most resistant to damage from side or bottom impacts. [ 2 ]
WD-40's formula is a trade secret. [17] The original copy of the formula was moved to a secure bank vault in San Diego in 2018. [18] To avoid disclosing its composition, the product was not patented in 1953, and the window of opportunity for patenting it has long since closed.
This plastic bucket has been used as an open-air flowerpot for some years. Photodegradation has made it brittle, causing part of it to break off when the bucket was moved. In polymer chemistry, photo-oxidation (sometimes: oxidative photodegradation) is the degradation of a polymer surface due to the combined action of light and oxygen. [1]
Former WD-40 headquarters in San Diego. The WD-40 Company, originally the Rocket Chemical Company, is an American manufacturer of household and multi-use products, including its signature brand, WD-40, as well as 3-In-One Oil, Lava, Spot Shot, X-14, Carpet Fresh, GT85, 1001, Solvol, 2000 Flushes and No Vac. [2] It is based in San Diego, California.
A variety of plastic objects conserved in a museum (Finland) Conservation and restoration of objects made from plastics is work dedicated to the conservation of objects of historical and personal value made from plastics. When applied to cultural heritage, this activity is generally undertaken by a conservator-restorer.
Often, vehicles require plastic headlight restoration as headlights can become foggy over time due to weathering. [20] In a complete restoration, the repair and refinishing of the car's body and frame must again go through the careful inspection and subsequent repair and recoating as necessary to bring the car to as first sold condition.
A tractor unit pulling a semi-trailer A truck pulling a semitrailer using a trailer dolly. A semi-trailer is a trailer without a front axle. The combination of a semi-trailer and a tractor truck is called a semi-trailer truck (also known simply as a "semi-trailer", "tractor trailer", or "semi" in the United States). [1]
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.