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The Valspar Corporation is an American manufacturer of paint and coatings based in Minneapolis, Minnesota. With over 11,000 employees in 26 countries and a company history that spans two centuries, it was the sixth largest paint and coating corporation in the world. [4] Valspar was founded in 1806 as a paint dealership in Boston, Massachusetts.
Work hardening, also known as strain hardening, is the process by which a material's load-bearing capacity (strength) increases during plastic (permanent) deformation. This characteristic is what sets ductile materials apart from brittle materials. [1] Work hardening may be desirable, undesirable, or inconsequential, depending on the application.
The loss of electrons in paint is also claimed to be the cause of “paint oxidisation” and the electronic system is also supposed to protect the paint. [4] However, there is no peer reviewed scientific testing and validation supporting the use of these devices and corrosion control professionals find they do not work.
Paint maker Valspar's (NYS: VAL) third-quarter revenues surged, but its bottom line slumped due to high costs -- yet another story of cost eating into revenues. But Valspar might still be worth a ...
Often when serrated flow is not seen, dynamic strain aging is marked by a lower strain rate sensitivity. That becomes negative in the Portevin–Le Chatelier regime. [ 8 ] Dynamic strain aging also causes a plateau in the strength, a peak in flow stress [ 9 ] a peak in work hardening , a peak in the Hall–Petch constant , and minimum variation ...
Premature hardening of paint, called "skinning" because it forms a skin on the surface of the paint, can be inhibited by the addition of volatile ligands. These ligands bind to the oil drying agents, then lose their inhibiting action as they themselves slowly volatilize and leave the drying agent to work.
This process is known as “fusion bonding”. The chemical cross-linking reaction taking place in this case is irreversible. Once the curing takes place, the coating cannot be returned to its original form by any means. Application of further heating will not “melt” the coating and thus it is known as a “thermoset” coating.
A non-drying oil is an oil which does not harden and remains liquid when it is exposed to air. This is as opposed to a drying oil, which hardens (through polymerization) completely, or a semi-drying oil, which partially hardens.