Mil Epdm
Mil Epdm
How To Choose The Right Pond Lining Material
Every man-made pond, water garden or stream begins with good quality pond liners. The pond lining material must be durable enough to keep water from seeping into their dug-out foundations and yet be made of material friendly to aquatic life.
Before selecting pond lining material it is first necessary to determine the size of your pond.
The formula for calculating Pond Liner Size is as follows:
Pond Liner Length = Pond Length + (Pond Depth X 2) + (Overlap X 2).
Pond Liner Width = Pond Width + (Pond Depth X 2) + (Overlap X 2).
When laying out your pond liner it is advisable to allow for a 1-2 foot overlap that can be trimmed or hidden after lining contours have been laid out flush. Pond depth for Koi ponds is recommended to be 3-5 feet deep.
Once you have your pond's square foot measurements determined, you can figure out the correct thickness your pond lining material should be. Thickness is measured in "mil" in the US. Specifically, this means 1/1000 of an inch. The thicker the liner, the heavier it is. While thickness may mean a more durable pond liner it also makes it less flexible, more expensive and more difficult to install. The thickness of pond lining material recommended for Koi ponds varies from 20-45 mil.
Currently, there are five types of pond liners commercially available. They are made from either rubber or plastic.
The most popular rubber pond lining is called EPDM (Ethylene-Propylene-Diene Monomer). It is available in varying degrees of thickness and is known for its malleability as it is easy to install. It can withstand temperatures of -40 to 79 degrees C (-40 to175 degrees F) but is also the most expensive option. Good quality EPDMs such as those made by Firestone come with a 20 to 30-year warranty.
EPDM's UK counterpart is called Butyl Rubber. Chemically, EPDM and Butyl are different synthetic chains but they are both structurally the same and used for similar purposes (such as pond lining) in each region.
Polyethylene pond liners on the other hand, are stiffer (being plastic based) but cheaper than others. This is an ideal choice for large scale pond projects such as those for parks where material needs to be durable, UV stable (not destroyed by UV exposure) and safe all year round. It can be used in temperatures ranging as low as -56.6 to 82 degrees C (-70 to 180 degrees F)
HDPE (High-density Polyethylene) is another plastic liner which comes in 20 or 40 mil thickness. It is less expensive than EPDMs and less malleable as well. It comes with a 20-year warranty and is UV safe.
LLDPEs (Linear Low Density Polyethylene) are less dense than HDPE's. Therefore they can be more prone to puncture but are more flexible when used to line ponds. These are available in the US and South Africa.
The cheapest of the plastic-based pond lining materials is the PVC (PolyViny Chloride) which generally carries warranties from 2 to 10 years. While it is very malleable and lightweight, this polymer is not UV stable, nor is it as durable as the rest. However, repairs for this lining can be done underwater.
Whatever pond lining material suits your needs, it is recommended to use an underlayment made of non-woven soft fabric beneath it. This is to ensure that your lining is not punctured by sharp rocks on your pond bed. Underlayment is also commercially available. Interestingly enough however, and perhaps to save on costs, some Koi pond keepers have used old carpet padding for this same purpose!
About the Author
If you want to learn more about Pond Lining Material, you can visit my website at http://www.learnkoifish.com for helpful tips on setting up, maintaining and caring for both your Koi Pond and the Koi fish that inhabit it.
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Rubber Roofing Leak due to Bad Installation
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Aquascape 29188 10 ft. x 50 ft. EPDM Liner Roll 45 mil $436.8 45 mil EPDM Fish Safe Liner. Easy and inexpensive to install. Won t crack like concrete. Rugged and flexible. Cover with rocks and gravel to expand the life expectancy indefinitely. Size: 10 x 50 . |
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Aquascape 29208 45 ft. x 50 ft. EPDM Liner Roll 45 mil $1965.6 45 mil EPDM Fish Safe Liner. Easy and inexpensive to install. Won t crack like concrete. Rugged and flexible. Cover with rocks and gravel to expand the life expectancy indefinitely. Size: 45 x 50 . |
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Aquascape 29210 50 ft. x 50 ft. EPDM Liner Roll 45 mil $2184 45 mil EPDM Fish Safe Liner. Easy and inexpensive to install. Won t crack like concrete. Rugged and flexible. Cover with rocks and gravel to expand the life expectancy indefinitely. Size: 50 x 100 . |
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Aquascape 29211 50 ft. x 100 ft. EPDM Liner Roll 45 mil $4368 45 mil EPDM Fish Safe Liner. Easy and inexpensive to install. Won t crack like concrete. Rugged and flexible. Cover with rocks and gravel to expand the life expectancy indefinitely. Size: 50 x 100 . |
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Aquascape 29202 30 ft. x 50 ft. EPDM Liner Roll 45 mil $1310.4 45 mil EPDM Fish Safe Liner. Easy and inexpensive to install. Won t crack like concrete. Rugged and flexible. Cover with rocks and gravel to expand the life expectancy indefinitely. Size: 30 x 500 . |
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Aquascape 29203 30 ft. x 100 ft. EPDM Liner Roll 45 mil $2620.8 45 mil EPDM Fish Safe Liner. Easy and inexpensive to install. Won t crack like concrete. Rugged and flexible. Cover with rocks and gravel to expand the life expectancy indefinitely. Size: 30 x 100 . |
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Aquascape 29197 20 ft. x 100 ft. EPDM Liner Roll 45 mil $1747.2 45 mil EPDM Fish Safe Liner. Easy and inexpensive to install. Won t crack like concrete. Rugged and flexible. Cover with rocks and gravel to expand the life expectancy indefinitely. Size: 20 x 100 . |
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Aquascape 29209 45 ft. x 100 ft. EPDM Liner Roll 45 mil $3931.2 45 mil EPDM Fish Safe Liner. Easy and inexpensive to install. Won t crack like concrete. Rugged and flexible. Cover with rocks and gravel to expand the life expectancy indefinitely. Size: 45 x 100 . |
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Aquascape 29189 10 ft. x 100 ft. EPDM Liner Roll 45 mil $873.6 45 mil EPDM Fish Safe Liner. Easy and inexpensive to install. Won t crack like concrete. Rugged and flexible. Cover with rocks and gravel to expand the life expectancy indefinitely. Size: 10 x 100 . |
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Aquascape 29192 15 ft. x 50 ft. EPDM Liner Roll 45 mil $655.2 45 mil EPDM Fish Safe Liner. Easy and inexpensive to install. Won t crack like concrete. Rugged and flexible. Cover with rocks and gravel to expand the life expectancy indefinitely. Size: 15 x 50 . |
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Aquascape 29193 15 ft. x 100 ft. EPDM Liner Roll 45 mil $1310.4 45 mil EPDM Fish Safe Liner. Easy and inexpensive to install. Won t crack like concrete. Rugged and flexible. Cover with rocks and gravel to expand the life expectancy indefinitely. Size: 15 x 100 . |
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Aquascape 29200 25 ft. x 50 ft. EPDM Liner Roll 45 mil $1092 45 mil EPDM Fish Safe Liner. Easy and inexpensive to install. Won t crack like concrete. Rugged and flexible. Cover with rocks and gravel to expand the life expectancy indefinitely. Size: 25 x 50 . |
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Aquascape 29196 20 ft. x 50 ft. EPDM Liner Roll 45 mil $873.6 45 mil EPDM Fish Safe Liner. Easy and inexpensive to install. Won t crack like concrete. Rugged and flexible. Cover with rocks and gravel to expand the life expectancy indefinitely. Size: 20 x 50 . |
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Aquascape 29201 25 ft. x 100 ft. EPDM Liner Roll 45 mil $2184 45 mil EPDM Fish Safe Liner. Easy and inexpensive to install. Won t crack like concrete. Rugged and flexible. Cover with rocks and gravel to expand the life expectancy indefinitely. Size: 25 x 100 . |
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Aquascape 29206 40 ft. x 50 ft. EPDM Liner Roll 45 mil $1747.2 45 mil EPDM Fish Safe Liner. Easy and inexpensive to install. Won t crack like concrete. Rugged and flexible. Cover with rocks and gravel to expand the life expectancy indefinitely. Size: 40 x 50 . |
Liquid Roof Application
Liquid Roof Application is best with a squeegee and a fine nap roller. Before applying, mix the pre-measured catalyst by following label directions. A single application is preferable to multiple coats. Touchups may be applied as desired after initial film has cured and surface is first wiped with solvent. To insure its effectiveness it must be applied at a 20 mil layer . Apply with brush around flashings and edges using long, slow strokes. On flat surfaces, material can be poured, spread with a squeegee and then evened out with a short nap roller. The Product will level itself when sufficient material has been applied. Liquid EPDM Rubber Roof should not be applied on cream color ALPHA rubber.
Adhesion
Adhesion will increase over time. Polar surfaces such as metal, concrete and wood result in stronger adhesion than non-polar surfaces such as asphalt and single ply EPDM sheet. Most weathered surfaces including single ply and thermoplastic membranes will have enough of a surface profile to anchor the Liquid EPDM Rubber. Liquid EPDM Rubber Roof has proven itself superior to acrylics, urethanes, and other elastomers as a moisture barrier. Due to ultraviolet rays and weather conditions, sealants become brittle and lose adhesion, resulting in leaks. One application of Liquid EPDM Rubber Roof will provide an air and watertight seal that will outlast the original sealant.
Durability:
By itself, the Liquid EPDM Rubber Roof membrane will exhibit the characteristics of its EPDM chemistry, i.e. U.V. and ozone stability, excellent pounding water resistance and long-term retention of flexibility. However, since it is always applied to an existing surface, the condition of that surface will determine overall life expectancy.
Liquid EPDM Rubber applied over generally sound single ply EPDM can extend its life another 20 years, The useful life of metal roofs also benefit greatly when Liquid EPDM Rubber Roof is applied. BUR systems often have existing problems such as delaminating between layers, buckling and stress cracking. These are further aggravated by wet insulation which often results in severe corrosion and weakening of the metal supporting deck. Projecting a life expectancy for the EPDM Liquid Rubber membrane ultimately comes down to a case by case determination. When the EPDM Rubber membrane is compared to urethanes, acrylics and other elastomers in accelerated weathering and heat aging tests, the EPDM Rubber shows itself to be superior.
Liquid EPDM Roof Coatings are aftermarket products designed to extend life, seal leaks, provide a heat reflective or aesthetic function over existing roof surfaces. Now you too can enjoy the many benefits of a weather-tight EPDM Rubber Roof. Liquid EPDM Roof is a unique form of EPDM rubber. As a liquid, it can conform to any shape of roof, flashing, or protrusion, vertical or horizontal, and can be applied easily with a paintbrush or roller on your roof. Roof repair with Liquid Epdm Roof is now very easy.
Surface Preparation:
Liquid EPDM Roof/Liquid Rubber/Liquid Rubber may be applied on roof decks, gutters, structural steel, air conditioner enclosures, cooling towers, galvanized steel, unit heater flues, smoke stacks and chimneys, fiberglass and non porous masonry surfaces. Surface to be coated should be clean, dry and structurally sound. Fasten loose areas with adhesive (contact cement) or pop rivets. Oil or wax must be completely removed.
All surfaces to be coated should be clean and dry. Remove peeling paint and brittle caulking. Heavy build ups of asphalt roof cement should also be removed. Tighten any loose fasteners and replace those which are severely corroded. Repair or replace roof panels damaged by storms. Remove heavy rust with abrasive discs or wire brushes. Power washes all surfaces to be coated and allow drying thoroughly. Caulk all gaps wider than 1/16 inch which are not expansion and contraction slip surfaces.
Remove loose portions of existing coatings and brittle caulk with scraper and wire brush before using Liquid EPDM. Whatever still has good adhesion may remain to be re-coated.
Rusty or pitted metal should be wire brushed to remove loose oxide. Tightly adhering corrosion may be recoated. Asphalt based aluminum coatings should be removed as much as possible by wire brush or abrasive disc. Roof cement should be removed and replaced with butyl caulk where necessary.
Repair torn rubber by re-gluing loose areas with contact cement. Coat exposed edges with contact cement to prevent solvent absorption from Liquid EPDM Roof/Liquid EPDM Rubber. A rubber patch may be applied over torn area if desired. Remove chalk from white rubber membrane by brushing with a detergent solution followed by a water rinse or working surface with a stiff brush. Smooth metal or plastic surfaces should be roughed up to improve adhesion of Liquid Roof/Liquid Rubber A de-glossing solvent may work on some plastics.
For Large Commercial Projects: Airless or Air Atomized spraying, Airless equipment needs only one hose from pump to gun but must generate 3500-4000 psi pressure and is limited in the length of hose which can be used because of high pressure drops. Air atomized equipment requires two hoses to the gun making it more cumbersome to maneuver plus the addition of a compressor.
Liquid Roof is the only liquid EPDM Rubber product currently on the market.
Equipment specifications:
PUMP -capable of delivering 3-4 gal/min. at 3500-4000 psi
HOSE if 3/8 inch ID max. permissible length is 150 feet
when using .019 tip
if 1/2 inch ID max. permissible length is 200 feet
when using .21 tip
About the Author
He is an expert of roof coatings and roof sealants. He is running his own firm of roof repair coatings, named Liquid Roof and he defines that Liquid Roofs the most durable roof coatings type for RV Roof Repair. His firm is working on all types of roof leaks and its repairs.
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Sunterra 300212 8-Foot X 10-Foot PVC Pond Liner, Black $39.99 Use this 20-mil PVC pond liner to create pools, streams and waterfalls in any size, shape or style. Dimensions L x W (ft.): 10 x 8, Color: Black, Material: PVC, Material Thickness (mils): 20 mil-thick... |
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Sunterra 302212 14-Foot X 14-Foot PVC Pond Liner, Black $73.01 PVC pond liners are flexible and easy-to-transport. They are simple-to-install and offer unlimited design options. 20 mil. thickness. 15 year limited warranty.... |
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Liquid Rubber White Liquid EPDM Roof Coating 5 Gallon $285.00 Liquid EPDM Rubber Coating Liquid Rubber is the worlds only EPDM rubber in liquid form. Liquid Rubber provides a seamless, single coat, roof coating that can be applied up to 6 times thicker than your standard elastomeric. Liquid rubber is ideal for recoating EPDM roof membranes, troweled concrete, weathered metal roofing, foam, weathered siding and more! Liquid Rubber will withstand ponding water... |
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