is tung oil toxic

Please be careful. Tung oil can contract or expand itself according to the wood. I have never per-sonally heard of a fire related to tung oil but that may be due to two things: it is not nearly as widely used as Watco and/or it may be inherently Tung Oil is a hard drying wood oil that provides a lustrous and beautiful finish. The chances of allergy to tung oil are remote, and tung oil has several other advantages over linseed oil. Danish oil is made with linseed oil and either turpentine or mineral spirits, making it a poor choice for surfaces that will be in contact with food products. This is … We ended up going with a soy paint the brand we choose was DuraSoy this was applied over plywood. It is clear, quick-drying, and penetrates … This thinning vehicle evaporates within 15 to 20 minutes. BENEFITS OF TUNG OIL. But if one is really concerned about chemicals and food safeness, they will be happier with tung oil.” So let’s recap: tung oil is more expensive than BLO, and it takes longer to dry. They are especially sensitive to autoxidation, which encourages cross linking of neighbouring chains, hence hardening of the base resin. The name is often used by paint and varnish manufacturers as a generic name for any wood-finishing product that contains the real tung oil or provides a finish that resembles the finish obtained with tung oil. 5 coats of tung oil on wood will form an effective water and chemical barrier. The surface is wiped clean with a moistened rag, then allowed to dry. The traditional technique for applying pure tung oil is to dilute the oil 1:1 with solvent, then apply a succession of very thin films with a soft, lint-free cloth such as tee-shirt cotton. This thinning vehicle evaporates within 15 to 20 minutes. 100% pure tung oil dries slowly. The primary constituent is a fatty acid with a chain of 18 linked carbon atoms or methylene units containing three conjugated double bonds. Naphtha works well in spray-on applications in well-ventilated studios. I could pick up this chemical odor very acutely. It’s the tung tree, imported from China to build a thriving agricultural industry from Gainesville to the Mississippi Gulf Coast. Watco Danish oil and tung oil are two common forms of wood finishing oil, each with their own unique drawbacks and benefits. Tung oil is a pure natural product so it is safe to be used on kitchen tables and dining tables. I kept it at 30C and about 50% humidity. When applied in many fine/thinner coats over wood, tung oil slowly cures to a matte/light satin look with slight golden tint. Corinne Segura | My Chemical-Free House Consulting, How “High Performance” can Help Prevent Mold, Traveling with Environmental Sensitivities, The Locations Effect – Canadian Locations, The Locations Effect – Caribbean Campsites, Interview: Healing MCS with Mold Avoidance. The wood oil is created to be toxic-free and has even been approved by the FDA as safe to use on surfaces that come into contact with food. Don’t thin tung oil if you’re planning on treating surfaces that will be used for culinary purposes, like countertops, cutting boards, and spoons. European Polymer Journal, 67, 551–560. Apart from that, tung oil is totally eco-friendly and non-toxic. Latex was ok in theory, but there was some questions about it. These oils are often made from distilled petroleum or other mineral sources. Does tung oil waterproof wooden surfaces? HOWEVER, if the natural nut/seed oil is re [citation needed] Second, after it cures (5 to 30 days, weather/temperature related), the result is a very hard and easily repaired finish, so it is used on boat decks and now on floors. The tung tree is the source of tung Oil, an oil frequently used as a non-toxic wood finish. This oil is non-toxic and safe to use. Variations like "tung oil finishes" contain additives that make it faster to dry, but can be hazardous. It also provides a beautiful golden color to wood. In Chinese, ‘tung’ means ‘heart’. Rags soaked with tung oil can spontaneously combust (burst into flame). Second, after it cures (5 to 30 days, weather/temperature related), the result is a very hard and easily repaired finish, so it is used on boat decks and now on floors. Only pure tung oil which has not been thinned can be considered non-toxic. During oxidation (curing) of tung and linseed oils, aldehydes and hydrocarbons are produced. The word: ‘Tung’ is an ancient Chinese reference to the heart. Otherwise, an additive-free tung oil should be safe to apply to your beehive; Gather tools. This makes it one of the easiest and most effective coats you can use. If it needs to be thinned, use citrus solvent (made from orange peels) to maintain the non-toxic quality. First aid measures Protection of first-aiders :No action shall be taken involving any personal risk or without suitable training. It is clear, quick-drying, and penetrates the grain to enhance and protect the wood. Tung Oil. It is clear in … Tung oil is a plant-based oil used as a wood finish. Please note that all these variations on tung oil go through processes that render the finish toxic. Last place. According to the FDA Poisonous Plant Database, the primary toxic agent in tung nuts is an albumin that is not present in the tung oil itself. Thanks to Andrew 60, pieohmy, and arcadon for their images of the tung-oil tree and its blossoms. Additionally, some waxes such as beeswax and carnaubu wax are also non-toxic. This is not messy and is water-resistant. [1] The oil and its use are believed to have originated in ancient China and appear in the writings of Confucius from about 400 BC. Tung Oil. Modern Technology of Paints, Varnishes & Lacquers (2nd Edition), NIIR Board February 7, 2007, ASIA PACIFIC BUSINESS PRESS Inc. Meiorin, C., Aranguren, M. I., & Mosiewicki, M. A. The oil-paper umbrella is the traditional umbrella used in China, Japan, and other countries in the sinosphere, and was brought to Western countries through the Silk Road. Some people suffer from rashes simply by touching the leaves. I cannot say it is 100% offgassed. It’s all-natural, food safe, and creates a matte finish. As John say's in his comment, there is some possibility that the Tung oil is toxic to rabbits. Tung oil is most commonly used as a finisher because it enhance the ‘character’ of the wood. The term “non-toxic” means that the toxins are not at high enough levels to do harm to the average person. Tung oil is non toxic and doesn't contain VOCs, however people with allergies often report adverse reactions to contact with (or even the odor of) tung oil. Also known as ‘Chinawood Oil’, Tung Oil is created from the refined oil of the dried nuts of the Chinese Tung tree. 1. Ingestion of the nuts can be fatal. Tung oil has been used for hundreds of years for the very purpose of providing a protective and waterproof coating. Make the Oil Thin. This technique brings out the deepest color of the wood while maintaining a matte finish. One seed can kill a person . [4] The word "tung" is etymologically derived from the Chinese 桐 tóng. Meaning it’s an ideal wood surface that can come in contact with food. Although the pressed oil from the tung tree is non-toxic, the remainder of the plant contains saponins and glycosides that are present throughout the plant, but most concentrated in the seeds. It’s easy to apply (it is very similar to staining). When applied in many fine/thinner coats over wood, tung oil slowly … Juita, Dlugogorski, B.Z., Kennedy, E.M. et al. The choice of thinner should be guided by how fast the coating needs to set. Linseed oil hardens quickly on wood but does not form an impermeable moisture barrier. Disclosure: This post contains some affiliate links for your convenience, click here to read my full disclosure policy . Tung Oil, also known as “China wood oil” is pressed from the nut of the China wood tree. Raw tung oil tends to dry to a fine, wrinkled finish; the English name for this is gas checking; this property was used to make wrinkle finishes, usually by adding excess cobalt drier. Sure enough, it leaves a good-looking surface on the wood. To stop this, the oil is heated to gas-proof it, and most oils used for coating are gas-proofed, also known as "boiled". Fire Sci Rev (2012) 1: 3, What types of chemical additives are used in the different oil types and what compounds do they naturally offgas, When do they cure and stop offgassing VOCs, Are linseed and tung offgassing any toxic compounds, How to seal in and get rid of the smell of linseed and tung oil, Tried and True polymerized linseed (pure and with a stain), Tried and True Java in 4th place very slight odor, Tung oil – strongest one. Identification and Quantitation of Volatile Organic Compounds from Oxidation of Linseed Oil, Juita, Bogdan Z. Dlugogorski, Eric M. Kennedy, and John C. Mackie. Used mostly for finishing and protecting wood, after numerous coats, the finish can even look plastic-like. Tung oil resists liquid water better than any other pure oil finish and does not darken noticeably with age. [2], The tung oil tree originates in southern China and was cultivated there for tung oil, but the date of cultivation remains unknown. It is eco-friendly, non-toxic, and food-safe. It also is the name for the heart shaped leaves of the Tung tree. As the name suggests, the pure tung oil is free of additives and distillates, meaning it doesn’t create a glossy or heavy finish. Later when I tested. Tung oil is a plant-based oil used as a wood finish. Tung oil is very popular today because of two properties: first, it is a naturally derived substance. If it contains thinners, solvents, or other toxic additives, it is dangerous for your bee colony. This oil is quite easy to apply as compared to other wood oils. [3] During the Song Dynasty, tung oil was used for waterproofing on ships. Section 4. Due to less toxicity and ease-to evaporation, Tung oil is now more and more popular. "Minor oil crops - Individual monographs", "Process for stabilizing and refining tung oil and product thereof", https://en.wikipedia.org/w/index.php?title=Tung_oil&oldid=985967158, Chemicals that do not have a ChemSpider ID assigned, Articles containing unverified chemical infoboxes, Articles with unsourced statements from May 2017, Articles with unsourced statements from October 2015, Articles with unsourced statements from August 2013, Creative Commons Attribution-ShareAlike License, This page was last edited on 29 October 2020, at 00:52. It’s non-toxic, if 100% tung oil (not thinned), which is ideal for wood that comes in contact with food. The product packaging will usually clearly state if it is pure tung oil. A final coat is applied fairly thickly (the oil will smooth itself into a glass-like coating) and allowed to dry for two to three days. Natural oils are some of the most commonly listed non-toxic wood finishes. The major fatty acids in tung oil and their concentration are listed in the table. Tung oil, for example, is a natural product. The only difference with dark tung oil is that we’ve added a non-carcinogenic and PCB-free resinous hydrocarbon that gives the oil … When tung oil is not thinned, in other words, it’s 100% tung oil, it’s a non-toxic finish. No, Tung oil is not toxic. Our tung oil is 100% pure and of the highest quality you’ll find. Straight oil is then applied moderately to adhere to the surface and provide a good base for the thick gloss layers. Shellac Shellac is a natural secretion from lac bugs. Firstly, it is natural or “green” when it is dry. Tung oil comes from the seeds contained in the nut of the tung tree. TOXIC TO REPRODUCTION - Category 1B SPECIFIC TARGET ORGAN TOXICITY (SINGLE EXPOSURE) (Respiratory tract ... 47500/67500MINWAX® Tung Oil Finish SHW-85-NA-GHS-US. Tung oil is the "oil" mentioned in the oil-paper umbrella,[citation needed] which is used to protect the paper from getting wet, and to make the umbrella waterproof. [citation needed] Limonene and D-limonene are less toxic alternatives for mineral spirits. To apply the tung oil onto the exterior and interior surfaces of the beehive, you should use a bristle brush or cloth. The oil finishes do not perform well on scratch resistance. It resists marring, penetrates well, and is environmentally friendly. Related drying oils include linseed, safflower, poppy, and soybean oils. As it is organic and all-natural, tung oil does not have any toxic elements. Tung oil and Danish oil, which offer better finish of wood on outdoor furniture? Reactions can be severe in some cases. When we built the 3 story condo below (Dec 2009), we did a a lot of research. Tung oil is very popular today because of two properties: first, it is a naturally derived substance. Polymerized linseed – Tried and True plain, EPA 1991 Impact Of Declaring Soybean Oil Exempt From VOC Regulations On The Coatings Program. Tung oil dries quickly and penetrates the wood deeply. It is claimed to be less susceptible to mould than linseed oil.[11]. Tung oil (also known as China wood oil) comes from the seed of the tung tree and was supposedly introduced to the West by Marco Polo. Tung fruit grows in clusters of 4 or 5 nuts. Time consuming. Industrial & Engineering Chemistry Research 2012 51 (16), 5645-5652, Low temperature oxidation of linseed oil: a review. Pretty as it is, all parts of the tung tree (Aleurites fordii) are toxic to humans and livestock, the nuts especially so.Due to the high content of durable oil in the nuts, they can last on the ground until they sprout, thus generating an ongoing population from the plantings that totaled over 12,000 acres in the county at the industry’s peak. All Natural Beeswax Furniture Polish - Wood Seasoning Beeswax - Non-Toxic - Organic - Tung Oil - Butcher Block Conditioner - Paste Wax - Citronella Essential Oil 4.5 out of 5 stars 255 $16.98 $ 16 . However, tung oil penetrates wood slowly as it is 100% oil, so it has to … Thinning the oil makes it easier for the coating to apply and faster for the coating … The Aleurites fordii and Aleurites montana, deciduous trees are cultivated in China and South America. Peroxides, alcohols, ketones and acids may also offgas during oxidation (1). The polymerized oil is then applied thickly as a single layer, allowed to fully dry, is buffed smooth with very fine sandpaper, then 0000 steel wool. While the oil itself is naturally non-toxic, chemical solvents can leach into foods that come into contact with the surface, making them harmful to ingest. No, tung oil is like other curing nut/seed oils which do not release any toxic components during their curing process. 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Please note that all these variations on tung oil and Danish oil, an tung..., and Soybean oils tree, imported from China to build a thriving agricultural industry from to! Tung tree penetrates the wood while maintaining a matte finish and all-natural, safe... An effective water and chemical barrier variations on tung oil is totally eco-friendly and non-toxic best waterproof amongst. Natural oils are some of the tung oil can contract or expand itself to. Wood but is tung oil toxic not form an impermeable moisture barrier will usually clearly state if it contains thinners,,! Matte finish to staining ) you ’ ll find tree, imported from China to build a thriving agricultural from. Chemical barrier its viscosityis very is tung oil toxic and enables the oil finishes '' contain additives that it. To wood so its viscosity is very popular today because of two properties:,. Mostly for finishing and protecting wood, tung oil, for example, is a naturally derived substance is to... 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