The Snyder Industries 450 Gallon Flowmaster Viscous Hopper Bin Tank is purpose-built for thick, heavy materials that ordinary storage tanks can't handle. Molded in white polyethylene with a hopper bottom, it carries a 1.9 specific gravity rating - the heaviest density class in this Flowmaster line - so it holds dense slurries, viscous liquids, and high-solids material that would overstress a standard 1.0 or 1.5 SG vessel. At 84 inches overall tank height (excluding stand) on a 48 x 45 inch footprint, it stands as a tall, compact column that drops into floor space without sprawling. This is a specialty plastic tank, not a general-purpose water tank, and its viscous-hopper geometry is what sets it apart.
Will it work for your material?
Start with the weight math, because that is where viscous-service tanks get specified wrong. Filled with plain water this 450 gallon tank carries about 3,753 pounds of contents. At its full 1.9 SG rating it is engineered to hold up to 7,131 pounds of dense material - roughly double the water figure. Here is your go/no-go: max product density is 1.9 SG (7,131 lb full). If your slurry, paste, or high-solids mix runs heavier than 1.9 SG, this is the wrong tank and you need a higher-rated vessel. That 1.9 SG ceiling is exactly what separates this model from the lighter 1.0 and 1.5 SG variants. The 48 x 45 inch footprint is your pad-sizing starting point. For headroom, capacity staging, and how the hopper angle affects usable volume, run the numbers through our Tank Sizing Calculator and read the Tank Sizing Guide. The central hopper outlet size, fitting locations, and bolt detail are shown on the technical drawing on this page - check it before you finalize your mating valve, bulkhead fitting, gasket, and discharge plumbing.
Hopper bottom and support
The hopper geometry is the reason to buy this tank: the cone draws viscous and high-solids material down to a central discharge instead of letting it pool against a flat floor. A tank this tall and this heavily loaded must sit in a matching steel support stand that carries the full hopper - it is not designed to free-stand on a flat slab. Remember the 84 inch dimension is the tank alone; your stand adds height, which raises the discharge elevation you plumb to, so account for that clearance early. If you are pouring a foundation for the stand, our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI framework for loads in this range. Snyder white poly also makes the fill level easy to read at a glance, which matters when you're managing dense, slow-moving product.
Freight and ordering
This tank ships LTL freight from Snyder Industries in Lincoln, NE, quoted live to your ZIP code. Because it is a tall, low-density freight item, getting an accurate number early helps you plan - run your delivery ZIP through the Freight Cost Estimator or call 866-418-1777 and we'll quote it for you. Searching for a Snyder white plastic tank built for thick-product or high-solids storage? This Flowmaster viscous hopper is the model for that job. For staged bulk-storage architecture and related sizing discipline, see our writeups on industrial water-reuse tank topology and freeboard sizing per ASTM D1998. Questions on fit, stand, or freight? Call 866-418-1777.
