The Edco C90400 36-inch epoxy screed box is the production-speed tool for meter-applying epoxy mortar, MMA mortar, urethane mortar, and self-leveling polyaspartic systems on concrete floors. Floor coating contractors use the rolling screed box to replace hand-troweling on big pours - warehouse floors, food-plant production rooms, manufacturing bays, and parking decks - because one operator with the C90400 can put down a uniform-thickness mortar at a small fraction of the labor a hand-trowel crew requires, with a more consistent finish coming out the back end of the tool.
Built for
Industrial floor coating contractors who pour epoxy mortar in food plants, manufacturing facilities, warehouses, breweries, and dairies. The 36-inch width matches typical warehouse aisle and production-line geometry, and the easy-roll design lets one operator hold a steady production rate.
Specialty resinous flooring crews running MMA, polyaspartic, and urethane mortars on tight schedules - cold-storage installs, weekend shutdowns, and clean-room retrofits where the floor needs to be back in service within hours. The C90400 lets a small crew put down a much larger square footage in the working window.
Concrete repair and rehab teams filling spalled and damaged industrial slabs with structural epoxy mortar. The screed box meters mortar at a controlled thickness over the patch area for a dense, uniform repair that bonds to the substrate and matches finished floor elevation.
Typical use cases
Application of epoxy mortar wear coats and base layers on industrial concrete floors. MMA and urethane mortar pours where fast turnaround matters. Self-leveling pours over uneven concrete substrates. Structural epoxy patch repair on damaged slabs. Decorative quartz and color-flake mortar systems where a uniform thickness is critical for the broadcast aesthetic.
Frame and blades
The frame is epoxy-coated steel - the coating fights the abrasive nature of mortar aggregate and the chemical attack of polymer resins, so the frame holds up to repeated cleanups with solvent or hot soap. The blades are reversible, hinged polypropylene; flip them when one edge wears and replace as a set. The hinged geometry lets the blade ride over occasional substrate irregularities without binding.
Ergonomics
The ABS-molded handle is shaped to keep the operator's wrist in a neutral position through the push stroke, which matters when the same person is running the box across a 50,000 square foot warehouse floor. The handle bolts to the frame so the operator can change handle position to suit operator height or push direction.
Specifications
Working width: 36 inches. Hopper capacity: 2.2 cubic feet. Frame: epoxy-coated steel. Blades: reversible, hinged polypropylene (replacement blades sold separately). Handle: ABS-molded ergonomic with secure grip. Compatible materials: epoxy, MMA, urethane, and polyaspartic mortars and self-leveling systems.
Frequently asked questions
What is the screed box used for?
The C90400 is a manual rolling screed box that meters epoxy mortar (or MMA, urethane, or polyaspartic mortar) onto a concrete floor at a controlled, uniform thickness. It replaces hand-troweling on large pours and produces a much more consistent floor in a fraction of the time.
How wide is the screed box?
The working width is 36 inches with a 2.2 cubic foot hopper capacity. Edco also offers a 30-inch version (C90300) for tighter spaces; for most warehouse, manufacturing, and food-plant pours the 36-inch is the production-speed choice.
Are the blades replaceable?
Yes. The blades are polypropylene with a hinged design and are reversible - flip them over when one edge wears, then replace as a set. Replacement blades are stocked separately.
What materials can the C90400 handle?
Epoxy mortars (the most common use), MMA (methyl-methacrylate) mortars, urethane mortars, and polyaspartic-based mortars. Cleanup between materials and at the end of the day is critical - many shops run dedicated screed boxes for each chemistry to avoid cross-contamination.
Does the C90400 work on uneven floors?
The screed box meters mortar at a fixed thickness above the substrate, so on a rough or uneven floor it produces a self-leveling pour that fills the low spots. For surfaces with significant elevation change a leveling pour is run first, followed by the wear coat at the design thickness.
Discount Cleaning Products is an authorized Edco dealer. We stock the C90400 36-inch screed box, the C90300 30-inch screed box, replacement blades, and the full Edco floor-prep line including grinders, scarifiers, scrapers, and shot blasters. Our team can recommend the right tool combination for your floor system and substrate condition.