Agama Islam Society
Agama Islam Society
Jamiatu Mulslim Mindanao
Darussalam Matampay, Marawi city
In Partial Fulfillment of the Requirements in
PHYSICS IV
WHEAT PASTE
(Investigatory Project)
Sub to:
Ms. Zaalica Sultan
Sub by:
Mariam B. Hadji Said
Norminah Camad
Nasroden Mamarinta
Norhanah Hadji Ali
ACKNOWLEDGEMENT
We the researcher was very thankful for fulfilling our
WHEAT PASTE
Wheat paste (also known as flour paste, or simply paste) is a
gel or liquid adhesive made from wheat flour or starch and water.
It has been used since antiquity for various arts and crafts such
as book binding, dcoupage, collage, papier-mch, and adhering paper
posters and notices to walls. Closely resembling wallpaper paste, a
crude wheat flour paste can be made by mixing roughly equal
portions of flour and water and heating until the mixture
thickens.
A critical difference among wheat pastes is the division between
those made from flour and those made from starch. Vegetable flours
contain both gluten and starch. Over time the gluten in a flour
paste cross-links, making it very difficult to release the
adhesive. Using only starch, a fine quality, fully reversible paste
can be produced. The latter is the standard adhesive for paper
conservation.
Besides wheat, other vegetables also are processed into flours
and starches from which pastes can be made: characteristics (e.g.
strength, reversibility) vary with the plant species,
manufacturer's processing, and recipe of the end-user.
UsesThe mixture of vegetable starch and water has been used as
an adhesive for centuries. Street and concert promoters use wheat
paste to put up posters. Crafts people use it in papier-mch or
decoupage, and professional bookbinders use it for archival quality
repair.
A common use is in the construction of chains of paper rings
made from colored construction paper.
In the fine arts, wheat starch paste is often used in
preparation and presentation. A good wheat starch paste has a
strength compatible with many paper artifacts, remains reversible
over time, is neither too acidic or alkaline, and is white. This
article takes you through the simple steps for making your own.
Wheatpaste will glue any porous paper to another with ease and
dry to a rock-hard finish. It will also stick to many other porous
materials such as concrete and wood. You can apply wheatpaste with
a paintbrush, foam brush, roller, or just a piece of cardboard will
work fine. Like all glues, apply only a very thin coat to both
materials and stick together for best strength. If you are doing
anything like paper mache, soaking your pieces in wheatpaste and
using them will create help create very rigid structures. The glue
will harden fairly quickly (an hour or two), but the paper will
still be very wet for at least one day. A fan can speed up the
process.
Examples:graffiti posters (link to Stencil Revolution forum,
they have a nice discussion on wheatpaste)paper mache (happens to
be the only other instructable with a wheatpaste recipie)decoupage
(nice for covering tables)collageWheatpaste
From Wikipedia, the free encyclopedia
A poster by Morley adhered with wheat paste in Los Angeles.
Activists and various subculture proponents often use this
adhesive to flypost propaganda and artwork. It has also commonly
been used by commercial bill posters since the nineteenth century.
In particular, it was widely used by nineteenth and twentieth
century circus bill posters, who developed a substantial culture
around paste manufacture and postering campaigns.[1] In the field
of alcohol and nightclub advertising, in the 1890s, Henri de
Toulouse-Lautrec's posters were so popular that instructions were
published on how to peel down the pasted posters without
damage.[2]Until the 1970s, commercial poster hangers always
"cooked" their own paste, but since then many have bought
pre-cooked instant pastes.[3] It is applied to the backside of
paper then placed on flat surfaces, particularly concrete and metal
as it does not adhere well to wood or plastic. Cheap, rough paper
such as newsprint, works well, as it can be briefly dipped in the
mixture to saturate the fibres.
When hanging unauthorized billboards or signage, to reduce the
danger of being apprehended, wheatpasters frequently work in teams
or affinity groups. In the US and Canada this process is typically
called "wheatpasting" or "poster bombing," even when using
commercial wallpaper paste instead of traditional wheat paste. In
Britain the term for the verb "wheatpasting" is "flyposting."
HYPERLINK "http://www.wikihow.com/Make-Wheat-Paste"
Boil a pot of water. Pour 3/4 cup (200 mL) water into a saucepan
and bring to a boil.
HYPERLINK "http://www.wikihow.com/Make-Wheat-Paste"
2. Whisk the flour and cool water together. Take 3 Tbsp (50 mL)
flour or starch and gradually add room temperature water while
stirring or whisking. Stop when all the flour is wet and the
mixture is runny enough to pour.
HYPERLINK "http://www.wikihow.com/Make-Wheat-Paste"
3. Stir the runny mixture into the boiling water. Once the water
is boiled, add the flour mixture while stirring constantly. The
mixture will foam as it boils. Stirring or whisking prevents the
mixture from boiling over, burning, or forming lumps.To reduce the
chance of these mishaps, make a double boiler by placing the pot of
wheat paste in a larger pot containing roughly 2 cups (500 mL)
boiling water.If it thickens too much to stir, add more water.
HYPERLINK "http://www.wikihow.com/Make-Wheat-Paste"
4. Remove from heat when thick and smooth. This can take
anywhere from 2 to 10 minutes.If using starch, the mixture will be
translucent when ready.
HYPERLINK "http://www.wikihow.com/Make-Wheat-Paste"
5. Perfect the batch. In many cases the batch will be ready to
use once it cools. However, it's easy to make adjustments while the
goop is still hot: If the batch isn't sticky enough, stir in sugar
or white glue. Begin with 3 Tbsp (50 mL) sugar or glue and add more
if necessary.To preserve the mixture longer and deter bugs from
eating it, mix in a small amount of copper sulphate.
HYPERLINK "http://www.wikihow.com/Make-Wheat-Paste"
6. Let the mixture cool. Once at room temperature it should hold
together as a gluey gelatinous paste. Each brand of flour and
starch is a little different, so the exact consistency will vary.
As long as there are no lumps it should work well.To remove lumps
from the paste, strain it through a thin sieve or pair of
tights.
HYPERLINK "http://www.wikihow.com/Make-Wheat-Paste"
7. Store in a sealed container in the refrigerator. Left at room
temperature, the paste will begin to smell after 2 days and grow
mold within a week. Even for pastes without copper sulphate, there
are easy ways to extend this shelf life: Reheat unused paste in a
covered container after each project to sterilize it.Pour a little
water on top of the paste for storage. If the paste is cool the
water will sit on top of the paste and prevent mold from reaching
it. Pour out the water again before using.
The words paste, pasta, and pastry have a common heritage,
deriving from the Late Latin pasta (dough or pastry cake), itself
deriving from the ancient Greek pasta, meaning "barley porridge".
In English, paste is used as would be "dough" in the 12th century,
or "glue" in the 15th century.
This study can give benefits to the people specially to the poor
once, to have a good business and also to save money for their
other needs. Specially for those street artists. They just can make
their own paste instead of buying a expensive commercial one.
We the researcher would recommended that we use vegetable starch
to create a Paste instead of the commercial one. Making your own
paste is more cheaper than the commercial one. Weve known that
wheat paste is more compatible.
In conclusion, making your own paste is more cheaper