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Finally, consideration needs to be given to whether the finished wood will come into contact with food, in which case a food-safe finish should be used, [16] local environmental regulations governing the use of finishes, [17] and recycling of finished wood at the end of its life. [18]
When applied in coats over wood, Danish oil cures to a hard satin finish that resists liquid well. As the finished coating is not glossy or slippery, it is a suitable finish for items such as food utensils or tool handles, giving some additional water resistance and also leaves a dark finish to the wood.
Tung oil is a common traditional wood finish, used typically for two main properties: first, it is a naturally derived substance. Second, after it cures (5 to 30 days, depending on weather/temperature), the result is a very hard and easily repaired finish, so it is used on boat decks and now on floors.
Wood finishing is one of the most traditional and still popular uses of shellac mixed with solvents or alcohol. This dissolved shellac liquid, applied to a piece of wood, is an evaporative finish: the alcohol of the shellac mixture evaporates, leaving behind a protective film. [39] Shellac as wood finish is natural and non-toxic in its pure form.
Wood cabinets are subjected to the wear and tear of life, including grime from dirty fingers, grease splatters and food stains, pet claws, high bathroom humidity, smoke, oily dust, or the effects ...
Water-based lacquers are used extensively in wood furniture finishing as well. One drawback of water-based lacquer is that it has a tendency to be highly reactive to other fresh finishes such as quick-dry primer (excluding waterborne lacquer primers), caulking and even some paints that have a paint/primer aspect.
Examples include: the temperature of food products, the fat content of the food products and total time of contact with a surface. The safety of foam food containers is currently debated and is a good example of all three of these factors at play. Polystyrene may melt when in contact with hot or fatty foods and may pose a safety risk.
However, unlike wood, plastic boards do allow rinsing with harsher cleaning chemicals such as bleach and other disinfectants without damage to the board or retention of the chemicals to later contaminate food. [citation needed] Most HDPE boards are specifically designed to not dull the edge of a knife. If a score line is present, the knife is safe.