Plastic Tubs
Plastic tubs, often the same as plastic jars or bottles,
are most often used for shipping, distribution and storage of food, cosmetics,
pharmaceutical, chemical and agricultural products. Typically manufactured
from blow-molded high-density polyethylene (HDPE) or polyethylene teraphthalate
(PET), these tubs come in a wide variety of sizes, colors and shapes. They
may be small, holding only one ounce of material or holding many gallons for
industrial storage. Plastic tubs are usually made with air-tight sealing lids
or interlocking lids and tops for easy transportation.
Jars, bottles and tubs made from blown plastic are invaluable in many food,
cosmetics and pharmaceutical industries due to the comparative price and shipping
hazard of using glass or wood. Plastic, which weighs far less than glass, can
be transported at a cost far less than traditional glass, wood or metal packaging,
a principle which applies not only in shipping goods to distributors, but also
to shipping used containers to recycling plants. Some manufacturers offer product
cleaning services along with their plastic container products, especially manufacturers
of higher-density pails, tubs and tanks.
Many plastic tubs and pails are reusable and may last several years of continuous
use, thus reducing costs associated with other containers. Such heavy-duty
tubs are fabricated with high-density polyethylene, polypropylene or, in the
case of high-durability products, a composite of polyethylene and glass or
carbon fiber. Polyethylene, used for its durability, can tolerate temperatures
up to 120 degrees. Polypropylene is a slightly stiffer plastic, and may crack
in cold temperatures below 0 degrees, although it can withstand high temperatures
up to 150 degrees. Various materials are used for different industry applications,
and many manufacturers will specialize in food grade containers, medical sterile
containers, corrosion-resistant biohazard containers, et cetera.