FREQUENTLY ASKED QUESTIONS
LSG Load Support Grid
What sizes do the grids come in?
Each expanded panel of LSG Load Support Grid is 9' L x 24' W (215 square feet) and comes in one of three depths; 3", 4" or 6"
What material is the LSG grid made of?
LSG Load Support Grid is made from virgin HDPE (high density polyethelyne).
How do I know what cell depth to use for my project?
You can always give us a ring at the office or shoot us an e-mail to discuss your project in detail but a good rule of thumb is:
Why do I need Load Support Grid?
The LSG system confines materials and prevents lateral movement away from the applied load. The stabilizer grid acts as a large mat, by spreading the load over an extended area while increasing the load bearing capacity of the surface.
What if I have a slope that I will drive on?
It is OK! LSG Load Support Grid will work for slope protection and also provide the load support needed for a drivable surface.
What other materials do I need for my project?
Each project is different. The materials needed depends on what the top surface will be. Always double check with us but use this as a quick guide:
Why do I need to use a non-woven geotextile fabric?
Not only does the fabric work as a weed barrier, its main purpose is to keep the infill stones inside the cells from migrating further down into the earth.
Do I need to connect the grids together?
Yes, connecting the grids together will ensure a continous matrix of cells without any weak areas.
What is the lifespan of LSG Load Support Grid?
LSG is made from HDPE plastic which will take at least 100 years or more to break down and decompose. It will last a lifetime!
When do I need to use Rebar J-Hooks?
Rebar J-hooks are needed when the top surface will be loose gravel or grass. This ensures the grid is pinned down and secured to the earth. If J-hooks are not used, stones could undermine the grid lifting it up over time.
Where can I buy your products?
We have authorized dealers throughout the country. Please visit the dealer section of our page, enter your zip code and local dealers will appear.
I'm installing Load Support Grid in a grassy paving application, do I need a gravel base below the Load Support Grid?
No. Unlike other grassy paving systems on the market, our grid is an "all-in-one" system. You do not need to install a gravel base below our grid.
How can I keep the grid spread open until I fill it?
Use rebar stakes around the perimeter to keep the grid open before and during filling. Once filled, remove the stakes and re-use them.
What is the minimum order quantity?
You can purchase as little as one grid (9' x 24', 215 sf).
SlopeGrid
What size is SlopeGrid?
Each panel of SlopeGrid expands to 8' x 29' (232 sft) and comes in two cell depths, 4" and 6" depths.
Where can I buy your products?
We have authorized dealers throughout the country. Please visit the dealer section of our page, enter your zip code and local dealers will appear.
Does it matter what direction I install SlopeGrid?
YES! SlopeGrid consists of long strips that are welded together at intervals. The long strips need to be parallel to the hillside.
What if I have a slope that I will drive on?
SlopeGrid does not provide load support. Therefore it is not recommended for areas that will be driven on. Our LSG Load Support Grid would be a better option.
What accessories do I need for my slope?
Each project is different. Some may require engineering advice with all accessories or simply just j-hooks. We offer all accessories needed for your specific project.
I can't afford a retaining wall, can I use SlopeGrid instead?
YES! SlopeGrid is an excellent alternative to a retaining wall for slope protection and erosion control.
What do I use to fill the SlopeGrid cells?
One option is to fill the cells with soil and then plant vegetation.
What is the lifespan of SlopeGrid?
LSG is made from HDPE plastic which will take at least 100 years or more to break down and decompose. It will last a lifetime!
Gravel-Lok
Can I install Gravel-Lok without the LSG Load Support Grid below it?
We recommend our Load Support Grid becuase it provides a durable, economical foundation for any pavement.
Is Gravel-Lok permeable?
Yes. Gravel-Lok surfaces are porous (permeable), allowing water to pass through at a flow rate of 20 gallons per minute per square foot with 3/8" stone. This is the same flow rate of porosity as loose gravel.
Do I need to use Gravel-Lok pebbles with Gravel-Lok liquid?
NOTE WE HAVE DISCONTINUED GRAVEL-LOK PEBBLES.
How does Gravel-Lok perform in extremely cold climates?
Gravel-Lok surfaces have a slight flexibility which is similar to asphalt. It can withstand extremely cold temperatures and frequent freeze and thaw cycles.
How much Gravel-Lok do I need?
The coverage rate for the recommended "mix method" is about 93 square feet per five gallon container (18 - 19 sft per gallon). This is based on mixing 20 oz. of liquid with a 5 gallon bucket of pebbles and troweling it out at 2" thick.
What is the difference between Clear and Amber Gravel-Lok?
The durability is the same but Clear and Amber are two different formulas.
My stones are already in place. Do I need to remove them to mix with Gravel-Lok?
While mixing Gravel-Lok with pebbles is our preferred installation method, it is possible to SPRINKLE stones that are already in place with Gravel-Lok.
Can I use a sprayer with Gravel-Lok?
NO! Gravel-Lok liquid is too thick to use in a sprayer. If not using mix method of installation, you can use something like a small squeezable bottle, watering pail or our Gravity Wand to sprinkle the liquid over stones.
What type of maintenance is required with Gravel-Lok?
Depending on usage, a certain percentage of stones will come loose over time. Depending upon your tolerance for loose stones, maintenance in the form of patching and / or roll coats will be necessary.
installation is located in a public space, the rate of loose stones will be even higher. The use of bikes, skateboards, roller blades, wheelchairs, luggage with wheels, shopping carts, etc. will increase the rate of loose stones. If there is patio furniture you may notice an increased number of stones coming loose where people pull in their chair and it drags across the surface of the pavement. Even high heeled shoes can cause additional stones to come loose.
In the event of vehicular traffic (golf carts, forklifts, snow plows, lawn equipment, cars, etc.) a greater percentage of stones will come loose due to the pressure and traction of tires gripping the surface, especially where tires turn.
How do I know if my stone is dense enough for use with Gravel-Lok?
Wear goggles.
What container sizes does Gravel-Lok come in?
We offer 3 sizes:
How do you get Gravel-Lok out of the 50 gallon drum?
Turn it on its side on a pallet.
Can I apply Gravel-Lok to stones already in place between flagstones?
Yes. First make sure the stones are clean and dry.
How can I remove Gravel-Lok liquid from something?
Avoid getting Gravel-Lok on adjacent surfaces because it is nearly impossible to remove it and will leave an unsightly stain. If Gravel-Lok is still wet (not yet cured) then acetone could be used to remove it.
I see Gravel-Lok sold on Amazon. Is this the right product for me?
We sell a kit on Amazon for the DIY'er needing to bond pebbles in the joints between flagstones. This is a complete DIY kit which includes:
Where can I buy your products?
We have authorized dealers throughout the country. Please visit the dealer section of our page, enter your zip code and local dealers will appear.
How does Gravel-Lok perform in extremely hot climates?
Gravel-Lok is not affected by extreme heat.
Can I use my snow plow on a Gravel-Lok surface?
Using a snow plow or shovel over top of Gravel-Lok can damage the surface causing loose stones or pits. Patching and repairing may be necessary in the Spring. A snow blower can be used safely.
What can I do to melt ice on my Gravel-Lok surface?
The removal of ice and frost from the surface can be achieved by the application of salt or other ice melting products. The area can also be treated prior to prevent freezing from occuring in the first place. When the weather returns to normal (non-freezing), wash with cold water to remove the salt from the surface.
Do I need to do a roll coat?
It is highly recommended that you do a roll coat. The application of roll coats ensures the top surface has been coated with Gravel-Lok. This will help to strengthen and preserve the bonded surface.
How do I store Gravel-Lok?
Gravel-Lok should always be stored in a temperature controlled environment for up to 1-1/2 years.
Can I install Gravel-Lok when it's cold outside?
The temperature should be above 50 degrees F for at least 12 hours after installation.
What if rain is in my forecast? Can I still install Gravel-Lok?
Rain cannot be in the forecast for 24 hours when planning your Gravel-Lok installation. If a pop up storm happens, DO NOT cover the area with a tarp. This will cause a greenhouse effect and the liquid will not cure properly.
What if I spill Gravel-Lok on pavers or flagstones?
Gravel-Lok will leave an unsightly stain on pavers or flagstones. Avoid spilling or dripping it. You can use acetone to clean up the spill if you catch it immediately. Once cured, it may be impossible to remove it. Some people have had success with a product called Dad’s Easy Spray, a paint, stain, and varnish remover. Spray it on and allow it to sit for a few minutes and then use a wire brush to remove the stain. This process may need to be repeated.
Also, we do not advise coating pavers or flagstones with Gravel-Lok. It is not a sealant and it will cause those surfaces to become too slippery and hazardous to walk on.
Miscellaneous
What is your return policy?
Most items can be returned within a year with a 25% restocking fee. The customer needs to arrange for and pay for shipping back to our warehouse in Maryland.
What is the difference between Cell-Tek and Gravel-Lok?
Cell-Tek Geosynthetics, LLC is the name of our company. We are the manufacture of LSG Series® Load Support Grids, SlopeGrid®, Verti-Cell and Gravel-Lok® liquid.
When will my order ship?
Most orders ship out in 24 hours from our Linthicum, Maryland warehouse.
What are your hours?
Monday through Friday 8:00 a.m. - 4:00 p.m. Eastern Standard Time.
Where can I buy your products?
We have authorized dealers throughout the country. Please visit the dealer section of our page, enter your zip code and local dealers will appear.
Can I order online from your website?
We do not currently have an online store on our website. Give us a ring to place your order 410-721-4844.