Tank Lining Equipment: High-Pressure Polyurea Spray Machines
Spray equipment for tank & cistern relining contractors — Pioneer JYYJ plural-component machines at 25–36 MPa with 1:1 ratio control for holiday-free application.
What Equipment a Holiday-Free Tank Relining Job Requires
Looking for the material rather than the machines? Start with our guides to what polyurea lining is, where it is used and the equipment it needs and our polyurea tank lining guide. This page covers the spray equipment side: which machine specification the work demands.
Tank relining is one of the most demanding jobs a plural-component rig will face — vertical and overhead passes, confined-space access, and a substrate that must be sealed without a single holiday. The coating itself delivers chemical and abrasion resistance that epoxy, PVC, and FRP liners cannot match, with a 10–100× faster cure and a 15–25 year service life. But that performance is only reachable if the equipment atomizes the A and B components completely: Pioneer JYYJ machines run at 25–36 MPa with 1:1 ratio control, which is the single most important factor in achieving a holiday-free result that genuinely stops corrosion.
Because the membrane is sprayed as a 100% solids, two-component system, it forms a seamless, pinhole-free film with elongation over 400% and tear strength above 80 kN/m, bridging substrate movement and thermal cycling without cracking. Compared with brush- or roller-applied epoxy, it returns the asset to service in hours instead of days — eliminating the multi-day cure windows that drive tank-downtime cost, and removing the seams and weep paths where corrosion initiates.
Warning Signs Your Tank Lining Is Failing
A failing lining rarely fails all at once. These symptoms mean a polyurea re-line should be scheduled before a containment breach becomes an environmental or production incident.
Tank Lining Applications by Industry — Recommended Pioneer Equipment
Pioneer JYYJ plural-component machines line every tank type. Below: 4 industry categories, the typical tanks in each, and the JYYJ rig configured for that service.
🛢️ Petroleum & Fuel Storage
Recommended machine: JYYJ-H-V8T heavy-duty hydraulic with 10" PLC (flagship — contact for quote) — 2–15 kg/min at 36 MPa, the pressure and output needed for fast, holiday-free coverage of large-diameter tanks.
Crude Oil & Product Tanks
Aromatic polyurea internal lining resists hydrocarbons and produced water. Spans API 650 floor and shell seams without cracking.
Secondary Containment
Seamless polyurea over concrete dikes and bund walls. Meets SPCC containment requirements in one fast-cure application.
Fuel Terminals & Loading
Abrasion- and fuel-resistant lining for high-throughput terminals where spillage and mechanical wear are constant.
Aboveground Storage (AST)
External and internal polyurea for AST corrosion protection — bridges pitting and extends inspection intervals.
💧 Water & Wastewater
Recommended machine: JYYJ-H600PK hydraulic with 10" PLC and adjustable 1:1–1:2 mix ratio — recipe memory for switching between potable and structural formulations on the same job.
Potable Water Tanks
NSF/ANSI 61 compliant polyurea grades for drinking-water contact. Seamless, taste- and odor-free, no leaching.
Wastewater & Clarifiers
H₂S- and effluent-resistant lining for clarifiers, digesters, and lift stations where concrete is under constant chemical attack.
Fire-Water & Process Tanks
Fast return-to-service polyurea keeps critical fire-suppression reserves online with minimal downtime.
Concrete Reservoirs
Crack-bridging membrane over aging concrete reservoirs — stops infiltration and exfiltration in a single pass.
⚗️ Chemical Process
Recommended machine: JYYJ-H-V8T at 36 MPa — complete atomization for the high-build, pinhole-free film that aggressive chemistries demand.
Acid & Brine Storage
Chemical-resistant polyurea for dilute acids, caustics, and salt brines. Verify specific service against the material data sheet.
Secondary Chemical Containment
Monolithic lining for chemical bund areas and trenches — no seams for aggressive media to undercut.
FGD & Scrubber Vessels
Flue-gas desulfurization absorbers and scrubber sumps where temperature and chemistry both cycle hard.
Process Sumps & Trenches
Seamless, fast-cure lining for floor sumps and drainage trenches in chemical plants.
⛏️ Mining & Mineral Processing
Recommended machine: JYYJ-H-V8T — the heavy-duty rig built for the thick, abrasion-grade wear linings this application demands.
Tailings & Leach Tanks
Abrasion- and acid-resistant polyurea for leach tanks and tailings storage where slurry chemistry attacks bare steel.
Slurry Tanks & Pump Boxes
High-build polyurea wear lining outlasts rubber and ceramic in many slurry-handling tanks and pump boxes.
Chutes, Launders & Hoppers
Impact- and abrasion-resistant lining for transfer chutes, launders, and ore hoppers — protects mining equipment from wash-out wear.
Flotation Cells
Seamless polyurea protects flotation cell walls from reagent attack and abrasive pulp.
Tank Lining Spec Quick Reference
Match tank type to polyurea system, film build, and machine in one table:
| Tank / Service | Polyurea Type | Substrate | DFT | Cure to Service | Machine |
|---|---|---|---|---|---|
| 🛢️Crude / Product Tank | Aromatic pure | Carbon steel | 1.5–2.5 mm | 2–6 h | JYYJ-H-V8T |
| 💧Potable Water Tank | NSF/ANSI 61 grade | Steel / concrete | 1.5–2.0 mm | 4–8 h | JYYJ-H600PK |
| 💧Wastewater / Clarifier | Aromatic pure | Concrete | 2.0–3.0 mm | 2–6 h | JYYJ-H600PK |
| ⚗️Chemical / Acid Storage | Chemical-grade | Steel / concrete | 2.0–3.0 mm | 2–6 h | JYYJ-H-V8T |
| ⛏️Mining Slurry / Tailings | Abrasion-grade | Steel | 3.0–6.0 mm | 2–6 h | JYYJ-H-V8T |
| 🛢️Secondary Containment | Aromatic pure | Concrete | 1.5–2.5 mm | 1–4 h | JYYJ-H-V8T |
Tank Relining — 5-Step Spray Process and Machine Settings
6 Reasons Contractors Spec Polyurea for Tank Work
Three Polyurea Systems for Tank Lining — Choose by Service
The right chemistry depends on the stored medium, UV exposure, and abrasion load.
Pioneer JYYJ machines are formulation-agnostic — the same polyurea tank lining equipment sprays all three systems. Material choice is independent of machine selection, and Pioneer can supply both the JYYJ rig and matched A/B materials as a turnkey package.
Can sprayed polyurea replace FRP or polymer tank linings?
Yes. Sprayed pure polyurea is widely used as a seamless alternative to FRP (fiberglass) and bonded polymer tank linings. Because it is applied in place as one monolithic film, there are no laps, seams, or bonded panels to delaminate — a common failure point for FRP and sheet polymer liners in aggressive service.
Does polyurea work for large-diameter vessels and as a tank coating?
Polyurea sprays equally well on small process tanks and large-diameter vessels and storage tanks. As a spray-applied tank coating it follows the curved walls, floor, and nozzles of big vessels that rigid liners cannot, building a uniform polyurea tank coating across the whole interior.
New to the material? Read our guide to what polyurea lining is, where it is used and the equipment it needs.
For a tank-specific deep dive, see our polyurea tank lining guide.
Recommended JYYJ Machines
JYYJ-H-V8T
Pioneer's top-tier flagship — the highest-output PLC-controlled spray machine in the JYYJ line. 2-15 kg/min at 36 MPa with 10-inch PLC touchscreen, one-click start/stop operation, and low-temperature protection that prevents incomplete mixing in cold conditions. Flat-mounted booster pump design reduces footprint while maintaining the highest output. Ideal for the most demanding industrial polyurea and polyurethane projects.
JYYJ-H600PK
Adjustable-ratio hydraulic spray machine with 7-inch PLC touchscreen and adjustable mixing ratio (1:1~1:2). 2-10 kg/min at 36 MPa for polyurea, high-density foam, and precision-critical applications. Recipe memory and data logging for project documentation. Adjustable ratio handles temperature-driven viscosity shifts and custom material formulations — unique in the JYYJ line.
Recommended Materials
Browse Polyurea Coating (A + B) →- ● Pure polyurea (chemical-resistant grade)
- ● Primer for steel substrates
- ● NSF/ANSI 61 potable water compliant grade (on request)
Why This Setup Works
Chemical resistance: acids, bases, hydrocarbons, salt solutions
Seamless integrity — no pinholes, no weep paths for corrosion initiation
Return-to-service in hours, not days — minimizes tank downtime cost
Service life 15-25 years vs 5-10 for traditional epoxy systems
Technical Considerations
- Substrate preparation: abrasive blast to Sa 2.5 minimum
- Primer selection depends on substrate material (carbon steel / stainless / concrete)
- Compatibility check: verify chemical service with material manufacturer
- Ambient condition window: surface temp > dew point +3°C
Real Projects in Tank Lining Equipment: High-Pressure Polyurea Spray Machines
Representative projects. Full case library expanding with customer authorizations.
Petroleum Storage Operator · 40m × 12m (~1,400 m²)
Petroleum Storage Tank Lining · Abu Dhabi
40m diameter petroleum tank interior lining. Polyurea with NSF-compliant formulation. Return to service in 18 hours.
Industrial Aquaculture Operator · 24 ponds × 800 m² (~19,200 m²)
Industrial Shrimp Aquaculture Pond Lining · Mekong Delta
Vannamei shrimp farming · 24 production ponds (~19,200m²) lined with food-grade pure polyurea. Eliminated water seepage, prevented soil contamination, increased survival rate from 60% to 85%+.
Customer-specific details available under NDA · Full case studies on request
See Tank Lining Equipment: High-Pressure Polyurea Spray Machines in Practice
YouTube demonstration videos
@YongjiaPolyurethanemachinepuRelated Guides
- What Is Polyurea Lining? Types, Uses & Spray Equipment
Polyurea lining explained: how it compares to polyurethane and epoxy, key properties, major lining applications, and the spray equipment needed to apply it.
- Polyurea Tank Lining: Cost, Process & Equipment Guide
How polyurea tank lining works, how it compares to epoxy and FRP, cost factors, spray process, holiday testing, and the turnkey high-pressure equipment to apply it.
Frequently Asked Questions
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