Mascot Engineering’s Grating and Manhole Covers Approved for Changi Airport East Project

Mascot Engineering is proud to announce that its high-performance F900 and E600 ductile iron grates and gas, air & watertight manhole covers have been officially approved for use on the prestigious Changi Airport East development in Singapore—following close collaboration with local authorities, contractors, installers, and the client throughout a comprehensive approval process.

Meeting Changi Airport’s exacting standards required extensive cooperation and compliance at every stage. The approval process involved multiple levels of testing, including local load tests to EN124 F900 standards conducted by an accredited Singapore testing facility, detailed material grade analyses, and the submission of numerous product samples. The contractor facilitated sample installations in Singapore for on-site inspections by authorities and other stakeholders to ensure practical installation and performance.

Mascot Engineering supplied a range of gas/airtight and watertight infill inspection covers, including single, two-part, and three-part cover assemblies to meet the project’s diverse needs. These access covers offer exceptional sealing performance critical for airside environments.

The approval for use of Mascot’s gastight access covers is particularly significant, as the Singapore market previously had access to only one supplier. Mascot’s gastight covers are now the approved alternative, with proven supply capability in Singapore.

Australia leads the world in gas-tight manhole cover standards with AS3996 being the only international standard that includes rigorous testing criteria and methodology for gas-tightness and water-tightness. While much of the world follows the European Standard EN124, AS3996—updated in 2019—continues to set the global benchmark for in-depth access cover testing.

A key success factor for Changi East was Mascot Engineering’s innovative levelling bolt system, which played a significant role in achieving precise installation and long-term stability. In addition, thorough inspections ensured no foreign object debris (FOD) could be emitted from the products, safeguarding against potential damage to aircraft and airport operations.

The project also involved developing new products tailored to the client’s needs, including E600 grating with clear openings of 800mm, 1000mm, and 1500mm—a challenge the Mascot Engineering team enthusiastically embraced. This close collaboration with the client, authorities, contractors, and installers was vital to meeting the demanding project requirements.

Our logistics team was kept busy dispatching 20ft containers almost fortnightly for over 12 months. Each container underwent thorough product inspection by an accredited third-party authority before departure to ensure ongoing compliance.

This rigorous process reflects the high expectations and stringent standards of one of the world’s leading airports, renowned for infrastructure quality and safety.

Designed specifically for demanding airside environments, Mascot Engineering’s F900 and E600 ranges provide durable, boltdown, non-rocking ductile iron solutions capable of withstanding the extreme dynamic loads generated by aircraft and airport vehicles.

Founded in 1920, Mascot Engineering brings over a century of expertise in cast iron and ductile iron manufacturing, combining engineering excellence with strict compliance to local, project, and international standards. This approach has earned us trusted partnerships across major infrastructure projects worldwide, including airports, ports, and urban developments.

To further support our Southeast Asia presence, Mascot Engineering has partnered with a local distributor in Singapore and Malaysia, ensuring timely access and expert technical support tailored to local project needs.

This approval and supply contract underscore Mascot Engineering’s dedication to quality, innovation, and collaboration with local authorities, clients, and contractors in the Asia-Pacific region—strengthening our reputation as a reliable supplier of ductile iron grates and watertight and gastight manhole covers in F900 load ratings for critical infrastructure projects.