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  1. #51
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    tung oil used

    Just finishing a box cover for a water tank pump. I used wood lying around from previous projects, a few pieces of "white" pine, and some pieces used for scaffolding, possibly rubber. I coated them, after sanding and cleaning, with 1/1/1 tung oil, mineral spirits, and clean beeswax. I applied 4 coats, and will wait a month to add another two coats. Bought the tung oil from Thorzen, (thanks for that tip Dan), as I felt assured that it was 100% tung oil, undiluted with jatropha, or other cheaper unsuitable oils. Since it sits over the water tank pump, water proofing, and toxicity were a concern. Now I'm doing a 1 meter square water tank cover, and will apply the first coat of 1/1 tung oil and mineral spirits tomorrow. Pics are at https://teakdoor.com/Gallery/index.php?cat=11218 . I'll post pics of the tank cover when done. I have to say I love the look of the tung oil, very warm and lush, it really brings out the wood's grain. I look forward to less utilitarian projects using the tung oil.




    https://teakdoor.com/Gallery/index.php?cat=11218

  2. #52
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    Good to hear.

  3. #53
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    Thank you Thaimat for sharing your project, excited to hear how it goes.

    Thank you Nawty for your comments, you are right about the figures. The text was done with the assistance of a Professor in the Argriculture Department's finding in text books. As we are now +1 year into our practical experience, we are in the process of revising the website.

    It is difficult for us to price 3 years ahead of time, so we have based our calculation from the price of petrol at the time the website was done, factoring in all the cost for production for it to be worthwhile for us to work with. We will revisit that when we are closer to the 3rd year. But we needed a figure as a guideline to work with.

    The cost of each plant was calculated from the cost we had to bear from bring it to Thailand, transportation, cultivating, etc. Afraid we are not able to give them away FOC. There were many groups interested, coming to us with different schemes to obtain the plants from us. But they are not giving us any assurance that we WILL get the seed back at the end of the day. How would each value what is given for nothing?

    Talks are in progress with bigger land owners to work together so that growth in each area can be controlled for maximization in an organized fashion, the project will not work if the timing for each part cannot be met.

    Thank you for your thoughts Nawty, it is worth more than 10 cents, hope to receive more from you, it will help us mirror our actions and improve.

    Our plan is to have people with forsight able to see the potential in the next 5 years. After all, we have done all the initial work already. The cost of each tree IS borne only once, but what CAN be produced even after our lifetime cannot be calculated due to the usefulness of The TUNG.

    Yes please Daffney, will be happy to receive some of your thougths? We would really like to build a solar powered factory as we would like to be as self sufficent as possible. Thinking of starting next year since we are already receiving orders for the Oil on a daily basis now.

  4. #54
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    reasons for tung

    I used the beeswax to help water proofing, as this piece gets rained on indirectly, as well as sits over the water pump for my water tank. Ditto for the tank cover I am now working on, which will sit on a stainless steel cover, on top of the water tank. The point of treating the wood is for preservation. The enemies of wood preservation, of course, are sun, water, and bugs. The tung oil will prevent sun and water from destroying the wood. I am somewhat certain that, since the tung tree is toxic to bugs, the oil will be as well, it's just a question of degree. Termites/Ants are the biggest problem here in Thailand, there being over 2,000 species of ants in Asia, over 600 species in Thailand. I have old Maesak Teak stumps that my wife uses for orchid holders, and ants even eat that, the hardest of teaks.

  5. #55
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    The beeswax sounds interesting, I was also wondering about citrus thinners or something natural. Seems it would help the marketing considerably if everything used was natural.

    Also, the idea about it protecting from bugs is an interesting one, would be good to find out if it's true.

  6. #56
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    Quote Originally Posted by THORZEN
    The husks can be used for as fuel for your barbecue or made into cakes for future use.
    Probably help with anyones diet too

  7. #57
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    Quote Originally Posted by Smithson View Post
    The beeswax sounds interesting, I was also wondering about citrus thinners or something natural. Seems it would help the marketing considerably if everything used was natural.

    Also, the idea about it protecting from bugs is an interesting one, would be good to find out if it's true.
    Citrus thinners would be ideal, but can they be found in Thailand, or are you talking about in a perfect world?

  8. #58
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    Because if we're talking about a perfect world, or what's available anywhere else in the world, than we should also be discussing soy based resins. Huge advances are being made in that field, with specific applications for non-toxic wood finishing. Also, lignate manufacturing for woods is at the highest end of quality, for durability, waterproofing, etc. But not in Thailand, to my knowledge.

  9. #59
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    Thumbs up More Info

    HISTORY:
    Pure Tung Oil is a finishing product that provides a tough, flexible and highly water-resistant coating. It is classed as a drying oil along with linseed, poppy seed, safflower seed, walnut, soybean, oiticica and a few other oils. Although it is relatively new to the Western world, tung oil has been known for centuries to the Chinese, and until this century, China was the main source for the oil. It comes from the seed of the tung trees, Aleurites fordii and Aleurites montana, deciduous trees that are very susceptible to frost damage. This vulnerability has restricted the cultivation of the tung trees to China and South America. Tung oil received wide application in China: in the building trades as a treatment for both stone and wooden structures; in marine trades as a preservative and water repellant on wooden boats. It is said to have been introduced to the West by Marco Polo. From the 13th to the 19th century, tung oil had only limited use in the West. In the 19th century it was adopted by the paint companies to become a major component in paints and varnishes. More recently, tung oil has gained favor over linseed oil for furniture finishing because it is faster drying and does not darken as much with age.


    PURE TUNG OIL ADVANTAGES:
    Naturally polymerizing finish
    Cures by oxidation not evaporation
    Does not form a glossy finish no matter the number of coats
    Form a flexible water proof finish
    Resists abrasion and acids
    Does not blister and peel (properly applied)
    Does not mold like linseed oil
    Long shelf life
    Does not darken with time like linseed oil
    Concentrated (thin one to one, doubles the coverage)
    Combined with "Citrus Solvent" makes an all natural finish
    FDA approved for food contact


    PROPERTIES AND CHARACTERISTICS:
    Pure Tung Oil is water and alkali resistant offering a protective barrier.A Pure Tung Oil finish will not darken with age as other finishes will. It resists marring, penetrates well, remains elastic and unlikely to check. Tung oil builds quickly, consolidates the wood surface and builds a transparent matte finish. Pure Tung Oil finish will not mildew or bleed like linseed oil when dry which makes it an excellent candidate for outdoor finishes. It should be kept in an airtight container with minimum air space. Pure Tung Oil contains no thinners or driers and has a light nutty odor. A Pure Tung Oil finish mixed with Citrus Solvent is a all natural organic finish that is environmentally safe and food safe.


    USE:
    The surface should be dusted to remove all loose particles. Alternatively, you can lightly sand the first coat before applying a second. Any filling, sealing or staining must be done before the oil is applied. The first coat should be a liberal one, and you can rub it over the wood with your hand, a soft rag. Allow this application to sit for 5-10 minutes so the oil can soak in, then remove any excess with clean soft rags. Check after about half an hour for any seeping, and rub this off as well. Let dry completely (24-48 hours) between coats. For woods with very open pores, allow an extra 24 hours drying time.

    Tung oil can be applied pure (without additives) if a non-toxic finish is required. If this is not necessary, you can accelerate the drying process and greatly improve the penetration by cutting the first coat of oil with mineral spirits or turpentine by 50%. Remember, Pure Tung Oil becomes toxic with these substances mixed into it, although the finish produced is not toxic because the driers evaporate.

    The number of coats of oil to be applied will be determined by the intended use of the piece. Two to four coats are enough for decorative work, paneling and moulding. Surfaces that receive moderate use or handling will need about six coats. Heavily used surfaces, such as table tops, should be given ten or more coats for maximum protection, plus a light renewal coat a couple of times a year. Renewal and building coats are quickly applied with cheese cloth, a lint free cloth or old nylon stockings. This process will give you a surface that will stand up to vigorous use and spills: water will bead on the surface.

    Pure Tung Oil is recommended for kitchen tables, chopping blocks and boards, and similar uses. Its non-toxic nature makes it particularly appropriate for children's toys and furniture. It gives good protection to wood paneling and moulding.

    Pure Tung Oil's matte finish will do nicely on certain pieces of furniture, but if a glossy finish is preferred you will need to buff and wax the finish, or use polymerized tung oil or a formulated tung oil based product.

    We have found tung oil to be a valuable helper in the workshop. It adheres very well to metal, and a light coat rubbed onto tool steel is an effective rust inhibitor. Wooden handles will also benefit from the occasional coat.

  10. #60
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    Quote Originally Posted by THORZEN View Post
    HISTORY:
    Its non-toxic nature makes it particularly appropriate for children's toys and furniture.
    Thought this stuff was toxic ?

    Mention of deterant to ants and bugs etc as well, so presume not good to chew on ??

  11. #61
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    It Tung Toxic?

    Went Googling, want to get the right info to share, again found many comments:

    The RIC Good Wood Guide (From Australia)
    The ultimate non-toxic timber treatment is not to use any! Make sure circumstances require that the timber be treated to preserve it. If the timber needs treatment, use plant or earth-derived low-gloss, noise-absorbent materials, which harbour no unpleasant smells, which allow the timber to breathe (apart from waxes, say) and which do not allow the buildup of static electric charges in dry weather (such as with hard finishes like epoxy and polyurethane). Use non-skid surfaces on floors.

    Tung Oil
    Made by Intergrain Timber Finishes, Wattyl, Estapol, etc.
    Tung, or Kekune oil has been used as the drying ingredient in varnishes for many years. In its own right, the oil when applied allows timber to breathe, and reveals the characteristics of the grain. Tung oil is derived from the seeds of the T'ung Tree (Aleurites spp), which is native to East Asia and the Pacific. (Japanese, Taiwanese and Chinese woodcrafters call it the Wood Oil tree.) It is also cultivated in the US and Europe.
    There is still some debate about the toxic effect of tung oil on people, so if you decide to use it, choose one with a szero or low concentration of synthetic driers and additives.

    (This one is from the US)
    Tung oil is naturally non-toxic and environmentally friendly
    Masters Blend Tung Oil-100% Pure™ has zero VOC’s (volotile organic compounds). VOC’s contribute to health problems, smog and noxious odors. Masters Blend is recommended by Green Reports (click here). Tung oil is naturally polymerizing and cures by oxidation, not evaporation. Tung oil is FDA approved for food contact. Click here to see the FDA Reference.

    Don't think anyone would mind if Tung Oil is bad for insects, even better as there is so much of them around here!

  12. #62
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    I've been using it for more than a month, no ill effects on me. ( To the contrary, it has such a nice odor, and with the lack of need to use a solvent for brush, hand cleaning, work clothes cleaning, it's a much more pleasant finish to use, imho) . Toxic to bugs doesn't necessarily mean toxic to people. Chrysanthemums are toxic to bugs, as an example, but we have them like weeds, as do people all over the world. We are so used to the concept of toxic in conjunction with man made pesticides and petroleum based products, for example, that we easily assume anything that is toxic to anything, is toxic to everything.

    Quote Originally Posted by Nawty View Post
    Quote Originally Posted by THORZEN View Post
    HISTORY:
    Its non-toxic nature makes it particularly appropriate for children's toys and furniture.
    Thought this stuff was toxic ?

    Mention of deterant to ants and bugs etc as well, so presume not good to chew on ??

  13. #63
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    Good point TM...

  14. #64
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    yes, you may use it but have you eaten it?

    kids chew everything

  15. #65
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    I have never witnessed my kids chewing on the posts.

  16. #66
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    Mine don't eat it, but neither do they eat any of the things still in or around our home that are made with, or are finished with petroleum products like paint, glaze, lacquers, etc. So, I am unclear of your point.

    Quote Originally Posted by DrAndy View Post
    yes, you may use it but have you eaten it?

    kids chew everything

  17. #67
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    hI i FOUND LINSEED OIL IN A SMALL SHOP IN CHIANG MAI
    IT IS THE FIRST "PAINT" SHOP ON THE LEFT INV RACHTAVITI ROAD COMING FROM THE MOAT.

    their tel nr is: 0892637989
    but he buys it from somewhere and does not know from whom ?????
    or secret ????

    in Europe it is available in every hardware shop?
    I do not understand the mistery here

  18. #68
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    no mystery, you can buy it from many places

    but I thought this was more about Tung oil, even though the title mentions Linseed as well

  19. #69
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    Quote Originally Posted by DrAndy
    no mystery, you can buy it from many places
    Not up here, you can't.

  20. #70
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    oh yeah, I am in London

  21. #71
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    I was very glad to learn so much about tung oil tree. I purchased and planted a few (300) two years ago, prompted by a group of local people when the price of gaz went up, same setting as Thorzen, waiting for money from the government. Half died, I went bak to get replacement, the group has dissolved when the money stopped and the price of oil went down, and the plants were drying in the sun, abandoned. Farmers around Fang told me they were going to cut them down, the price of diezel had gone down. With permission, I grabbed surviving elongated plants, about 400, and trasplanted around. I believe that oil is never going to be cheaper, 2010 is peak oil. Since I already have oil expellers, i want to be self sufficient in fuel, I planted lots of jatropha also, but tung oil is interesting!

  22. #72
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    Thing is how many trees do you need to power your car and your expellers for the whole year ?? me thinks a lot.

  23. #73
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    I'm not sure it's so viable as bio fuel, jatropah and palm oil seem to give a better return. If I had heaps of trees I'd really be looking at the wood finish market.

  24. #74
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    Quote Originally Posted by Dan View Post
    Has anyone seen either linseed oil or tung oil for sale in Thailand? None of the hardware shops I've been to have even heard of it and although I've found some dealers in Bangkok, their minimum order is 1 ton and there doesn't seem to be anything between that and minute bottles of linseed oil in art supply shops.
    15 years or so ago I used to get linseed by the 40 gallon drum from a place down along the old railway line road in Khlongtoei
    Also, from a shop in Banglamphu tung oil by the 'peep' kerosene can.

  25. #75
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    Tung oil can be obtained from here.
    Tung Oil (

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