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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.
If you grew up with a handy adult around the house, chances are you’ve been familiar with WD-40 since you were a kid. The magic water-displacing, petroleum-based spray was created in the 1950s ...
Paint protection film (PPF, also called clear bra, clear film or clear paint film) is a thermoplastic urethane often self-healing film applied to painted surfaces of a new or used car in order to protect the paint from stone chips, bug splatters, and minor abrasions. This film is also used on airplanes, RVs, cell phones, electronics, screens ...
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.
Photo-oxidative degradation occurs when plastic degrades from exposure to ultraviolet (UV) or visible light; the most damaging wavelengths depend on the composition of the polymer. [14] In general, plastic will be affected by light, and it is best practice to keep plastic away from light sources as much as possible, especially during longterm ...
Much as a traditional double-shape-memory polymer will change from a temporary shape back to a permanent shape at a particular temperature, triple-shape-memory polymers will switch from one temporary shape to another at the first transition temperature, and then back to the permanent shape at another, higher activation temperature.
A simpler but slower process involving merely exposure of the yellowed plastic to bright sunlight has been described, variously called 'Sunbrighting' or 'Lightbrighting'. This has both empirical evidence of effectiveness and the theoretical backing of some published scientific literature , which emphasises exposure to strong visible light while ...
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 ]
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