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Linseed oil, also known as flaxseed oil or flax oil (in its edible form), is a colorless to yellowish oil obtained from the dried, ripened seeds of the flax plant (Linum usitatissimum). The oil is obtained by pressing , sometimes followed by solvent extraction .
Japan drier is a common lay term and generic product name for any oil drying agent that can be mixed with drying oils such as boiled linseed oil and alkyd resin paints to speed up "drying". The name refers to " japanning ", a term for the use of drying oils as an imitation or substitution for urushiol based Japanese lacquer .
The raw oil may be used, but it cures poorly and leaves a sticky surface. Normally boiled linseed oil is used. This has been prepared beforehand by boiling with lead, in the form of lead oxide, or with manganese salts. Modern boiled oils use a lead-free metallic drier added cold, such as cobalt resinate. Old linseed oil finishes yellow with age ...
Linseed oil, for instance, increases in weight by 17 percent. [3] As oxygen uptake ceases, the weight of the film declines as volatile compounds evaporate. As the oil ages, further transitions occur. A large number of the original ester bonds in the oil molecules undergo hydrolysis, releasing individual fatty acids. In the case of paints, some ...
Typically, softer/ thinner oils such as mineral oil will produce a glossier though less durable finish whereas harder/ more viscous oils such as walnut oil and olive oil will produce a more durable finish. Although boiled linseed oil is commonly used as a wood treatment, it is too viscous to use for French polishing [citation needed].
This thinning vehicle evaporates in 15 to 20 minutes. When applied in many fine/thinner coats over wood, tung oil slowly cures to a matte/light satin look with slight golden tint. Tung oil resists water better than any other pure oil finish and does not darken noticeably with age. It is claimed to be less susceptible to mould than linseed oil. [11]
Linseed oil's properties as a polymer make it highly suitable for wood finishing, for use in oil paints, as a plasticizer and hardener in putty and in making linoleum. [179] When used in food or medicinally, linseed oil is called flaxseed oil. Poppyseed oil, similar in usage to linseed oil but with better color stability. [176]
It can be used as a fast-drying, glossy finish. An oil, such as boiled linseed oil, may be used to control the rate at which the cyanoacrylate cures. Cyanoacrylate glue is also used in combination with sawdust (from a saw or sanding) to fill voids and cracks.
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