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Varnish on wood stairs Varnished oak floor. Varnish is a clear transparent hard protective coating or film. It is not to be confused with wood stain.It usually has a yellowish shade due to the manufacturing process and materials used, but it may also be pigmented as desired.
Nail polish (also known as nail varnish in British English or nail enamel) is a lacquer that can be applied to the human fingernails or toenails to decorate and protect the nail plates. The formula has been revised repeatedly to enhance its decorative properties, to be safer for the consumer to use, and to suppress cracking or peeling.
Spar varnish (occasionally also called boat varnish or yacht varnish) is a wood-finishing varnish, originally developed for coating the spars of sailing ships, which formed part of the masts and rigging.
Varnish is a reverse caching proxy [2] used as HTTP accelerator for content-heavy dynamic web sites as well as APIs. In contrast to other web accelerators , such as Squid , which began life as a client-side cache, or Apache and nginx , which are primarily origin servers , Varnish was designed as an HTTP accelerator.
The varnish is made by melting the resin and mixing it with (e.g.) linseed oil. Sandarac resin melts at about 150 °C to a colourless or slightly yellow liquid. Its specific gravity is about 1.04. [5] In mid-to-late 19th century photography, a varnish was applied as a preservative to photographic negatives and positives.
Fluoride varnish is widely used in the United Kingdom, following guidelines from multiple sources backing its efficacy. Public Health England, a UK government organisation sponsored by the Department of Health, released guidance in 2014 recommending fluoride varnish application at least twice yearly for children and young adults. [13]