protectant

American  

[pruh-tek-tuhnt] / prəˈtɛk tənt /

noun

1. a substance, as a chemical spray, that provides protection, as against insects, frost, rust, etc.; protective agent.

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protectant British  

/ prəˈtɛktənt /

noun

1. a chemical substance that affords protection, as against frost, rust, insects, etc

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Etymology

Origin of protectant

1660–70, for an earlier sense; protect + -ant

Example Sentences

Running a flat iron over small sections that have been sprayed with heat protectant, she creates small ringlets, pinning them to his head to set.

From New York Times • Nov. 11, 2021

He sprayed it with a protectant and used the plastic wrap of a canvas as a palette.

From Washington Post • Jul. 4, 2021

Like beeswax, mink oil is a heavy-duty protectant that should be reserved for shoes you don’t mind altering the look of slightly.

From Slate • Sep. 19, 2018

Each piece is then grinded to remove any sharp edges until it’s finally sanded by hand and glazed in metal protectant.

From National Geographic • May 17, 2018

As a seed protectant, juglone is unsuitable because of its inherent toxicity to the non-cutinzed root surfaces.

From Northern Nut Growers Association Thirty-Fourth Annual Report 1943 by Northern Nut Growers Association