Geodesic Dome Complex PU Insulation in Saudi Arabia

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Project reference basis. Figures and configuration details are reported in the supplied project brief. They are reference values for the stated application, rather than verified acceptance results or a guarantee for another installation. Confirm the source records, material, tooling, operating schedule and test method when assessing a comparable project.

Haifeng successfully engineered and deployed an adaptive spray polyurethane foam (SPF) insulation system for a premier cultural center landmark contractor in Saudi Arabia, achieving a 100% pass rate in overhead anti-sag adhesion across a 68-meter-diameter freeform geodesic dome. The turnkey project delivered a high-pressure hydraulic proportioning machine, 75 meters of heated delivery line, specialized anti-sag airless spray guns, and precision pneumatic transfer pumps.

Prior to commissioning, the project engineers faced design bottlenecks with traditional insulation boards on the compound-curved dome. Conventional flat insulation boards could not conform to the varying 3D radius of the metal latticework without leaving thousands of wedge-shaped gaps that ruined thermal insulation and risked detachment onto visitors below. The client required an agile on-site chemical spraying setup capable of atomizing fast-curing polyurethane formulations continuously across steep vertical and inverted overhead angles, locking the volumetric ratio at 1:1, and creating a seamless 60mm acoustic and thermal barrier.

Operating from elevated articulated boom lifts, the contractor's teams applied up to 700 m² daily. By deploying Haifeng's closed-loop Ratio Lock flow controls and fast-cream anti-sag formulations, the contractor applied an unbroken, acoustically dampening insulation blanket that adheres to complex curves without dripping and reduces interior reverberation noise.

Project Technical Specification Matrix:

Haifeng deployed an industrial high-pressure spray platform engineered for complex 3D curved architecture:

1. Hydraulic Ratio Lock Proportioning: High-pressure hydraulic drive delivers chemicals at 165 bar, preventing fluid pressure drops during continuous elevation changes on boom lifts.
2. Multi-Zone Heated Delivery Hoses: Insulated delivery lines ensure chemical precursors remain at 54°C (±1.0°C) across runs up to 75 meters inside the vaulted dome.
3. Anti-Sag Airless Spray Guns: Mechanical purge impingement guns atomize fast-cream chemicals that gel within 2.5 seconds, preventing sagging or dripping on inverted ceiling angles.
4. Seamless Acoustic & Thermal Layering: Successive multi-pass applications built up a uniform 60mm layer across complex steel framing nodes, completely eliminating acoustic flanking paths.

Installation and commissioning: 16 days. Operator training: 4 days. Machine warranty: 1 year. Long-term spare parts and remote equipment support are available.