PLT carries a full line of natural resins, secretions (also called exudates),
which drip out of the tree when the bark or root of a tree is wounded by nature
or man. Since early times, resins have been key ingredients of coating materials
for decorative and protective purposes. Categorized as oil soluble or spirit
soluble (spirit is alcohol or related solvents), natural resins are insoluble in
water.
Copals
- native to Indonesia and the Philippines. Copal
resin is used as a raw material for varnish because it has
good storing quality, and produces a lustrous, elastic finish
with good weather properties. These varnishes are used in
the manufacture of wood and paper products. Other applications
include linoleum, oilcloth, printing inks, adhesives and
floor and shoe polish. Copal has also found application
in the manufacture of dental products.
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Damar ABC Mix- Used primarily in ink, paint, polish,
varnish, and finishing compositions, damars provide depth
and retention of gloss, superior color, adhesion, and flexibility.
Damar also provides resistance to fumes, scuffing, and grease.
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Dewaxed Damar -not completely compatible with lacquer
solvent, this resin must be treated with a process known
as dewaxing for use in nitrocellulose lacquer. Damar is
dissolved in a solvent and the resin wax is precipitated
by ethyl alcohol. Dewaxed Damar is tough and versatile as
a lacquer resin. It is used as a spirit varnish over artistic
oil paintings to shield against dirt. It is FDA-approved
for use as a paint in food containers.
Elemi - a film forming, plasticizing resin that provides
adhesion and flexibility. It allows for good retention of
color and gloss. This resin is used in the manufacture of
paints, varnishes, lacquers, ink and linoleums. It also
provides a green note to perfumes.
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East India resins are soluble only in aryl hydrocarbons
and hydrogenated aliphatic hydrocarbons. They are not obtained
through the tapping of trees, but are collected as natural
exudations where found, mostly in Indonesia. Related to
Damars, Black East India is dark upon application, but rapidly
bleaches to a transparent film comparable in color with
varnishes made from very light resin. East India resins
are principally used in adhesives, cements, glass paint,
printing inks, plastics, oil cloth and incense.
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Mastic - used in wood coatings, lacquers, adhesives,
and printing inks. Also used by artists to protect oil and
watercolor paintings, it is more flexible than other resins
and can be removed from paintings without damage to the
surface. Mastic inhibits A. Pylori bacteria in the gut,
and it is attracting considerable attention as a nutritional
supplement. (more info)
Sandarac
- one of the oldest known resins used in preserving
fine paintings and furniture. Used in spirit varnishes,
lacquers, and dental products, sandarac provides a hard,
white or transparent film. It is still extensively used
to make a protective film over watercolors.
(more info)
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