[Table of Contents] [Search]


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [BKARTS] bookboard showng through pale bookcloth



Hi Nancy good lesson. What I would add is that for cloth I use the PVA
methyl cel mix you mentioned on no. 1.
It delays PVA and let you move the cloth if you need. I use it with paint
small roller from homedepot, whash it and reuse. No lumps. Angela

----- Original Message -----
From: "Nancy Bloch" <LemonTreePress@xxxxxxx>
To: <BOOK_ARTS-L@xxxxxxxxxxxxxxxx>
Sent: Monday, January 06, 2003 12:01 PM
Subject: Re: bookboard showng through pale bookcloth

> In a message dated 1/6/2003 8:25:41 AM Pacific Standard Time,
> kingmanartmail@xxxxxxxxx writes:
>
>
> > <A HREF="mailto:kingmanartmail@xxxxxxxxx";>kingmanartmail@xxxxxxxxx</A>
>
> Ann...what adhesive to use seems to be a huge bugaboo for most people.It
was
> for me until I learned that you choose an adhesive for the specific
> properties it has, and the properties you want for a given situation.
There
> are basically 3 or 4 kinds of adhesives and each one has specific
properties.
>  As you become more experienced, you'll be able to decide for yourself
what
> to use. So, examining the properties....
> They all do a good job of sticking things to things.
>  1. PVA and other plastic adhesives
>      They have less water in them.  Therefore they dry faster.  Therefore
> they stick things together faster and sometimes you want a little time to
> slide things around so they WON"T stick too fast. Because of the fast
> sticking time of PVA, you don't want to use it when you are adhering a
large
> area of stuff that may need to get slid or adjusted a bit. The time that
an
> adhesive can still be jiggled around is called the "open time." But, you
can
> modify the PVA (and it's "open time" ) by adding something to add the
> properties you want(I.e. more open time)....In this case,I'd add methyl
> cellulose.  How much? Maybe half and half. or les methyl cel and more PVA,
> like 3 to 1.
>
>  2. Methyl cel by itself doesn't have quite the strength that other
adhesives
> have. It comes in a powder and you mix it with a little water until irt's
> sort of runny like egg whites. The powder keeps forever . I always have a
> little yogurt size container with methyl cel made up.  Keep the top on.
>
> 3.  "Paste" not glue.  When binders refer to paste they generally mean
> something in the wheat type. Now when we were kids we made flour and water
> paste. It sticks but it's lumpy and the grains of the flour are
> large(compared to some other possibilities) so it's not very satisfactory.
> Rice flour is finer grained than wheat flour so it makes a finer paste.
> Thproduct preferred by most experienced binders is "wheat starch." Since
it's
> the starch that holds things together, this is the best . It is also
called
> "jin shofu" , theJapanese product.  Available through book binding
catalogues
> like Talas. Despite many people having their own special way of making the
> paste(it comes in powder), you basically make it like you would a sauce to
> eat.  No lumps and smooth. Write if you need more specific directions...
> Since paste has a lot of water in it, it dries slowly , tends to ripple
paper
> as water would. But it's the choice for leather and certain paper tasks.
If
> you want a thick consistancy, use less water when you make it. More water
if
> you want it thin. But be aware. It spoils quickly, smells bad and gets
black
> mold on it. Will keep a feww days in refrig. Most binders make it new
every 2
> or 3 days, or daily. You can make half PVA and half paste and get a very
good
> adhesive.
>
> 4. The animal glues. Fish glue and rabbits' foot glue. You don't need this
> until you have quite a bit of experience.
>
> So there you have a basic course.  I hope it wasn't stuff you already
knew!
> You can also use 2 different adhesives on the same task...if it suits your
> purpose.
>
> I don't know what other responses you will get...but these are mine for
what
> it's worth. I just loved it when I learned these things so I could make my
> own decisions on the spot what to use. HAve choices available.  I have my
> little containers of yogurt on my bench at all times and use what is
> appropriate.  Oh yes, the paste will keep better if you put a few drops of
> alcohol in the container to help stop the mold.  I use 3 or 4 drops(I mean
> "drops") of oil of cloves or oil of eucalyptus or lemon oil. The kind you
get
> at a fragrance store or a bath shop.
>
> Hope this helps.
> Nancy
>
>

             ***********************************************
            BOOK_ARTS-L: The listserv for all the book arts.
      For subscription information, the Archive, and other related
            resources and links go to the Book_Arts-L FAQ at:
                      <http://www.philobiblon.com>

        Archive maintained and suppported by Conservation OnLine
                    <http://palimpsest.stanford.edu>
             ***********************************************


[Subject index] [Index for current month] [Table of Contents] [Search]