
Polyethylene Tanks in Shirley, NY
Shirley Above Ground Plastic Storage Tanks In Stock
Vertical, Horizontal, Cone Bottom – we sell all varieties of above ground industrial tanks and chances are we have just what you need in stock right here in our Pennsylvania warehouse. For the last 40 years, Design Plastic Systems has been an industry leader in sales and service of non-metallic polyethylene and polypropylene bulk storage tanks. Our plastic vertical tanks range in size from 20 gallon to 20,000 gallons and are molded in a variety of polyethylene materials including FDA and NSF 61 listed linear high-density (HDLPE) and cross-linked high-density (XLPE) resins. Our fiberglass tanks are custom fabricated to fit your storage needs and size specifications. Through a contact molded and filament winding process, we can provide a custom fiberglass tank with a diameter ranging from 3 to 14 foot.

Fiberglass vs Metal
Light weight, corrosion resistant, non-conductive, affordable and a high-quality product, say no more, fiberglass tanks are your best choice for your storage solutions whether it be, food grade water, waste water, chemicals, or fuel. Fiberglass tanks offer a high strength to weight ratio and resistance for many applications. Fiberglass tanks can be custom made to fit your specifications with sizes ranging from 3 ft to 14 ft in diameter, vertical or horizontal. Fiberglass tanks are easily repaired, re-lined and reconfigured if needed, meaning a tank won’t need replacement for minor damage or wear.

Shirley, NY Z-Core® Fiberglass Piping Systems
One of the key benefits of Z-Core® products is their resistance to corrosion from a wide range of aggressive solvents, including:
- Hydrochloric acid
- Sulfuric acid
- Sodium hydroxide
- Hydrofluoric acid
- Acetic acid
- Chlorine gas
This resistance to aggressive solvents helps extend equipment lifespan and reduce maintenance costs. Additionally, Z-Core® products are lightweight and easy to install, which can lead to faster installation times and lower overall project costs.

Complete line of platform and Shirley stairway structural assembly
Fibergrate’s Dynaform products offer a complete line of fiberglass structural components. Similar to steel, Fibergrate offers angle, I Beam, Channel, Square Tube, Curb (Embedment) Angle, Round Tube, threaded rod and hardware. As with Fibergrate’s other products the structure is offered is various resins and is fire retardant. By having a complete line of fiberglass structures enables us to offer a complete platform or stairway - structure, grating, treads and handrail would all be fiberglass.
Fibergrate has a full line of adjustable pedestals to work with their molded grating. Many times, customers need a raised platform to keep the surface off the ground. Adjustable pedestals are available from a 3 ¼” – 42” height and are perfect for floors that have a slope to them.
Fibergrate offers many other accessories to go along with their products. These include stainless grating hold down clips, grating edge ramps, epoxy sealer, fiberglass bonding kits, rubber feet, etc.

Shirley, NY Tank Accessories
Inspections, Certifications, and tank modifications available upon request. Design Plastics can assist with your installation, DEP Certification and tank fit out. We provide service and an expert staff who can offer piping, valves, bulkhead fittings and level controls for a complete tank package. Our tank manufacturers also provide under warranty, leak detection, sight glass assemblies, external fill lines and reverse gallonage indicators to name a few.
To complete your installation, Design plastic can provide fiberglass grating for safety OSHA platforms, handrail, and stairs.


Fiberglass Vs Steel
When designing a project, contractors or architects prefer fiberglass grating over metal or wood for many industrial applications. Fiberglass grating is 70% lighter than steel and has an exceptional strength to weigh ratio. In addition, fiberglass is corrosion resistant and requires less maintenance than steel and eliminates the heavy maintenance such as sandblasting and painting.
If your plant has areas where there is vehicular traffic, Fibergrate has a line of grating to assist. High load mold and pultruded grating is designed with a one-piece design which provides extra strength and durability. Where necessary, this grating can withstand forklift and tractor trailer traffic. In addition to strength, this grating is much lighter than metal and will not corrode over time.