Making The Right Choice In Poly Tarps
The common polyethylene tarp, are among the most versatile of all 'tools',
having a useful purpose on the farm, on a camping trip, in your backyard, in the
industrial yard, and almost anywhere else you can think of.
they are so adaptable, they provide excellent coverage anywhere you need shelter
and protection from the sun, rain, wind, or dirt. They are weatherproof, flexible,
tolerant to most chemicals, and the least expensive of all tarpaulins.
poly tarp is constructed by cross weaving strands of polyethylene yarn, then laminating
the material on both sides with two or more polyethylene sheets. This provides
high tensile and tear strength, but very light weight.
are more varieties of polyethylene than any other tarp. They can be found in a
many weights, sizes, construction, and colors - and they are the least expensive
tarp on the market.
Through The Choices
blue poly is the most common, there are lots of colored tarps to choose from -
silver, white, green, clear, and brown. Green and brown camouflage patterns often
sought out by hunters and campers, while silver is used for its' ability to reflect
sun and heat.
polyethylene material is naturally water repellant, mildew and rot resistant,
and it can be formulated to resist the build-up and retention of electrostatic
charges that may be harmful to certain sensitive equipment.
and intensity of exposure to sun is one of the main factors in fabric longevity,
your tarp should contain stabilizers to protect them from deterioration caused
by exposure to the sun's ultraviolet light.
- Construction: Standard
design will include sewn or heat-sealed seams, sometimes a rope sewn into the
hem. The most reliable seams are double stitched. Seams with less than four to
six stitches per inch may result in premature failure.
Super heavy duty
tarps will have grommets every 18-24 inches along the edge. Lightweight tarps
may stretch the spread to 36 inches.
Look for reinforced grommets or straps
that are sewn securely into the seam. This adds a great deal more durability,
increasing the pullout resistance compared to rivet-type grommets.
When looking at sizes, pay attention
to the labeling since the sizes you see specified may not be the actual measured
size. Cut size is the initial size of the fabric.
When the hems of fabric
are folded and stitched and seams are sewn, the finished product is usually 4-6
inches smaller on each side than the actual cut size. Finished size is the size
of the actual finished product.
Tarps: Judging The Fabric
is a factor in any purchase, but buying the least or even the most expensive tarpaulin
may not be the right decision. When looking
to buy the best tarp for your situation, there are other factors to consider:
Tarpaulin thickness is measured in mils (1/1000 of an inch). The lightweight tarp
found in most hardware stores are 5-6 mils. But if you are planning a heavy duty
use, or need a material with longer life, consider one with 10-12 mils, or more.
The mesh specification is the
number of threads per square inch. Heavy-duty tarps will have from 12-16 threads
per inch, but more common is 8-10 threads. The thread weight may also be expressed
in denier. Denier is the weight in grams of 9000 ft thread. The larger the denier,
the stronger the material.
Strength: Durability and strength is a function of thickness and mesh,
but also thread size, expressed a denier. Denier is the weight in grams of 9000
ft thread. The larger the denier, the heavier duty the material. Inexpensive and
discount tarps are typically 700-800 denier, in a 8x8 thread mesh, and a 5-6 mil
thickness. Silver tarps, such as the silver one above, can have a 14x14 mesh,
1000 denier, and a 11-12 mil thickness.
find that poly tarps are a good multi-purpose choice for weather protection needs.
Sources For Tarps and Tie Downs
done the comparisons, and we recommend Global
for their huge selction, high quality, and low price.
IN addition to the standard 10 x 10, they are one of the best places to buy large
tarps, 20 x 40, 30 x 50, 40 x 60, and all the way up to 120 x 120.
Another great source for online tarp deals, ToolKing has lots of sizes
at very good prices.
If your need
is simple, and are just looking for a cheap tarp to get the job done, Amazon
has a great selection of sizes.
Tarps: A quick look at lumber, drain, coil, and machine tarps.
Shelters: A better choice for backpackers and light-weight campers.
Tarps: Another popular choice for outdoors men and women.
Diverters: Where to get quick delivery of ceiling rain leak diverters.
Tarps: The choice when you need airflow and modest shade, and where
water proofing is not required.