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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

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    • CommentAuthormikejd
    • CommentTimeJan 2nd 2008
     
    I have had new windows, doors, skirtings, etc fitted in our renovation and would like to use an eco-friendly coating for all the woodwork. Hopefully clear or only slight stain, wood is pine.

    Any suggestions for suitable products?

    Mike
  1.  
    Wax?
    •  
      CommentAuthornigel
    • CommentTimeJan 2nd 2008
     
    treatex or os colour hardwax finish.
  2.  
    Hi Mike

    I usually use danish oil, not sure if it's totally eco friendly, you may wish to check VOC content. It is made from plant oils and soaks into the wood to provide a hard wearing suface. I have used it for kitchen work tops and it wears very well, even next to the sink. Can also be used outside and is available from most DIY stores.
    •  
      CommentAuthorfostertom
    • CommentTimeJan 2nd 2008
     
    What's tung oil?
  3.  
    I've used Osmo polyx waxoil on a new pine floor. Expensive for a small tin, but goes an incredibly long way, and seems to be quite hard wearing (in our boys' bedroom), and moppable. It is also very natural looking to the point that it looks like there's nothing on the wood at all.
    • CommentAuthorbiffvernon
    • CommentTimeJan 2nd 2008 edited
     
    Tung oil comes from a tree about the size of an apple tree but with great big showy white flowers. In Taiwan they have a big springtime festival to celebrate the flowering of the tung trees. Tung is the main ingredient of 'Danish oil' but this also contains some driers and other ingredients not usually specified on the tin. VOC for tung and linseed oil is zero. They 'dry' by oxidative polymerization rather than be evaporation of a solvent. It would be better to say they 'set' rather than 'dry'. Both tung and linseed are safe to use on kitchen ware. You can cook with linseed but tung is not good to eat in bulk. Danish may have other additives that I don't know about that might not be good to get on food.

    Google Images for "tung flowers" to see some very pretty pictures
    •  
      CommentAuthorfostertom
    • CommentTimeJan 2nd 2008
     
    That's lovely, Biff
    • CommentAuthorIan Ashton
    • CommentTimeJan 24th 2008
     
    Try

    Osmo
    Valltti
    Jotun

    all have clear finishes of varying types.
    • CommentAuthorCWatters
    • CommentTimeJan 24th 2008
     
    We have Osmo Hardwax oil on oak flooring and some doors. Nice product. It's more like a varnish than an oil (eg it seals the surface better) but unlike a varnish if it wears off it can be more easily recoated.
  4.  
    This looks interesting:

    http://www.vermontnaturalcoatings.com/

    But looks to be only available direct from US at present.
    • CommentAuthorbiffvernon
    • CommentTimeJan 26th 2008
     
    Curious. Whey is esentially the protein, casein, traditionally used as a binder in limewashes, distempers and other interior paints.

    But

    "No Toxic Binder: Some conventional oil and water-based finishes contain toxic heavy metals and formaldehyde. PolyWhey’s™ binder is non-toxic whey protein.
    Low Volatile Organic Compounds (VOCs): Conventional water-based finishes have an average VOC level of 200g/L (grams per liter). PolyWhey has less than 180g/L, well below the strictest U.S. standard of 250g/L."

    why is there anything above zero VOC?
  5.  
    Hey Biff, first time I've seen superscript on the forum. How did you do it?
    • CommentAuthorbiffvernon
    • CommentTimeJan 26th 2008 edited
     
    Wow. You mean the â„¢. I didn't notice that. I copied the text from that Vermont website but it would only allow me to select the whole page, not just the bit I wanted, so I first pasted it into Notepad, where, curiously, the superscript survived. I then selected the bit I wanted and copied and pasted here, the superscript surviving a second time. Very strange. Maybe they coated it with skimmed milk.
    • CommentAuthorbiffvernon
    • CommentTimeJan 26th 2008
     
    Actually, now I come to think of it, whey is what is left after cheesemaking and the curds, which contain both the fat AND the protein have been removed. Whey is thus only the sugars plus water. It's good for feeding pigs but should not work as a paint binder. It's skimmed milk you need - it contains the protein, casein, but not the fats.
  6.  
    Yes, Biff, the casein is definitely left in the cheese, but I'm not so sure what the composition of the whey actually is; when I have time I will contact them for more information.

    BTW, the definition of VOCS includes compounds released from trees, wetlands and human beings and other rather 'nice' things like linseed oil.
    •  
      CommentAuthorfostertom
    • CommentTimeJan 27th 2008
     
    Posted By: biffvernonMaybe they coated it with skimmed milk
    Whey to go, man
    • CommentAuthorbiffvernon
    • CommentTimeJan 27th 2008
     
    Er, sort of, Henry, but Volatile Organic Compound have to be, er, volatile. With stuff like linseed oil it doesn't really 'dry' by releasing volatiles but 'sets' by polymerization. Oxygen is absorbed from the atmosphere tying fairly big molecules together into ginormous chains. Ok, there is a volatile componant - that's what you smell - but it is miniscule and quite different from the paints that have a volatile solvent such as tupentine or its petrochemical derived substitues and which can form a large part of the bulk of the 'wet' paint.
    • CommentAuthorMike George
    • CommentTimeJan 27th 2008 edited
     
    Thanks Biff. I've tried pasting a superscript from word into notepad and then onto here - no luck. It works pasting the â„¢ from a forum web page here though : ( Must be some code attached to the TM.
    • CommentAuthorbiffvernon
    • CommentTimeJan 27th 2008
     
    Cracked it George, it's not a superscript, it's the Trade Mark Symbol, Character 2122. In MS Word, go to Insert, Symbol, Letterlike Symbols and find it near the bottom.
    • CommentAuthorMike George
    • CommentTimeJan 27th 2008 edited
     
    Excellent, :whorship: that means we can use any word symbol in place of superscript

    Eg W/m²K

    Apologies to mikejd for the saddo hijack of the thread
    • CommentAuthoralexc
    • CommentTimeJan 27th 2008
     
    for once i might be of some use.

    those lovely supercript/ subscript and whatever letters:

    under the 'windows' operating systems from microsoft: switch on num lock, then hold the 'ALT' key down and type say 191 release 'ALT' . where 191 is number of the letter/symbol. And use, with computers each letter(symbol) has a number(unicode code point) ¡
    under Linux, which i use, I normally shift to the language i want to write in, or use the Char select tool. ¿Hola?
    under Apple, no idea.

    The is a big caveat, it all depends on the font, some fonts will interpretate ® and © say, as something else than 'registered' and 'copyright'. Normally writing letters from different languages is fine, superscript and subscript symbols not always. Each font has a map of how each symbol is displayed, in an order numbered manner.
    Most folks who are english natural speakers know this as they have to put with english alphabet everywhere.

    Good places if your interested to look are :

    - to use the alt key windows (what is #191 ? ):
    http://www.w3schools.com/tags/ref_entities.asp

    further reading:
    http://www.cs.tut.fi/~jkorpela/chars.html#typing
    http://www.cs.tut.fi/~jkorpela/html/chars.html
    http://www.cs.tut.fi/~jkorpela/chars.html#safe-ascii


    cheers alex
  7.  
    Thanks alexc. You have been elevated to godlike status along with Biff
    • CommentAuthorRosie
    • CommentTimeNov 7th 2009
     
    Hi,
    could somebody tell me if the products mentioned above would be ok in a bathroom and how often do you need to recoat (in any room)?
    Thanks, I have been getting conflicting advice about different kinds of varnish.
    • CommentAuthorJulian
    • CommentTimeNov 8th 2009
     
    Hi Rosie
    the hardwax oils (manufacturers include Osmo, Fiddes) are fine in a bathroom. They're very hardwearing. The type of wear they get and quality of application are some of the factors that determine when it might been recoating but these are good, durable finishes. Is this for the floor?
    • CommentAuthorRosie
    • CommentTimeNov 22nd 2009
     
    Thanks Julian, it is for the door. I have got a tin but haven't got around to applying it yet (got no door at all on the bathroom!)
    • CommentAuthorShevek
    • CommentTimeJul 7th 2013 edited
     
    Posted By: Henry SearsI've used Osmo polyx waxoil on a new pine floor. Expensive for a small tin, but goes an incredibly long way, and seems to be quite hard wearing (in our boys' bedroom), and moppable. It is also very natural looking to the point that it looks like there's nothing on the wood at all.

    Like the sound of that. Does anyone have photos of examples where they've used Osmo Polyx Raw?
  8.  
    Surreal this thread but I smiled and if I don't have to go m^2 again I'll be happy forever - m²K - yipee!
    • CommentAuthorcarolwat
    • CommentTimeJul 31st 2013
     
    ECOS organic paints do a very good water based varnishes. I have used it a lot and its worn well.
    •  
      CommentAuthorSteamyTea
    • CommentTimeAug 1st 2013
     
    Not wishing to put a spanner in the works of 'eco' anything.
    But what claims/test are carried out on these products? How do we really know they are more environmentally friendly, kinder to kittens and make us all happier?
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