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Originally, spar varnish was a "long oil" varnish, composed primarily of drying oil with a small proportion of resin, usually boiled linseed oil and rosin. [1] This gave flexibility, [ 2 ] even though its weather resistance was still poor, and thus re-coating was required relatively frequently.
ResellerRatings is an online ratings site where consumers submit ratings and reviews of online retailers, and online retailers participate to respond to reviewers and to gather reviews from their customers post-purchase. As of July 11, 2017, the site had over 6.2 million user-submitted reviews for 202,000 stores. [citation needed]
Abuses akin to ballot stuffing of favourable reviews by the seller (known as incentivized reviews), or negative reviews by competitors, need to be policed by the review host site. Indeed, gathering fake reviews has become big business. [2] In 2012, for example, fake book reviews have been revealed as significantly affecting ratings on Amazon.
Ethyl carbamate (also called urethane) is an organic compound with the formula CH 3 CH 2 OC(O)NH 2. It is an ester of carbamic acid and a white solid. Despite its name, it is not a component of polyurethanes .
A user review of a product on Amazon.com. A user review is a review conducted by any person who has access to the internet and publishes their experience to a review site or social media platform following product testing or the evaluation of a service. [1]
RapidRatings generates a Financial Health Rating (FHR), a single number on a 0 - 100 scale that indicates the overall financial health of a given company. [9] The FHR is calculated using fundamental data from a company’s financial statements and does not take into account market inputs, analysts' opinions, trade payments, or contact with issuers, bankers, or advisors.
Polyurethane synthesis, wherein the urethane groups −NH−(C=O)−O− link the molecular units A kitchen sponge made of polyurethane foam . Polyurethane (/ ˌ p ɒ l i ˈ jʊər ə ˌ θ eɪ n,-j ʊəˈr ɛ θ eɪ n /; [1] often abbreviated PUR and PU) refers to a class of polymers composed of organic units joined by carbamate (urethane) links.
Urethane may refer to: Ethyl carbamate, a chemical compound which is an ester of carbamic acid; Polyurethane, a polymer composed of a chain of organic units joined by ...