Case Studies
1. Project Overview
| Item | Content |
|---|---|
| Project Name | Lei Yue Mun Park & Holiday Village Temporary Quarantine Centre |
| Application Field | Sealants for Modular & Prefabricated Construction (MiC) — module-to-module joint sealing · prefab module waterproofing · sanitary / wet-area sealing of isolation units · interior prefab floor & panel bonding · external envelope joints |
| Products Used | INGADA MS-625 — Low-Modulus Polyether Sealant, ±25% movement, French A+ (Module Joints / External Envelope / Waterproofing) INGADA MS-35 — Instant Bond Construction Adhesive, 800 kg/m² grab, 3.2 MPa shear (Module Positioning / Panel & Decoration Bonding) INGADA MS-50A — High-Hardness Anti-Mold Sealant, Shore A ≥80 (Isolation-Unit Bathroom / Wet-Area Sealing) INGADA MS-77 — Premium Phthalate-Free Flooring Adhesive, ΔLw ≥16 dB, 0 phthalate (Prefab Interior Floor & Wood Decoration) |
| Project Location | Lei Yue Mun Park & Holiday Village, 75 Chai Wan Road, Chai Wan, Hong Kong, China |
INGADA’s Role (application proposal for MiC): INGADA’s MS Polymer + Silicone package maps directly onto the sealing needs of modular integrated construction: MS-625 (±25% movement, 0.4 MPa modulus, French A+) for the factory-fabricated module-to-module and external-envelope joints that must survive hoisting, shipping and tropical storms; MS-35 (800 kg/m² instant grab, 3.2 MPa shear) for rapid on-site module positioning and interior panel bonding; MS-50A (Shore A ≥80 anti-mold) for the independent en-suite bathrooms of every isolation unit; and MS-77 (0 phthalate, ΔLw ≥16 dB) for prefab interior flooring. This package is positioned as the sealing backbone for prefab housing, modular buildings, container buildings and temporary buildings — the exact category that Lei Yue Mun’s 25-/55-day MiC delivery represents.
2. Engineering Challenge
Challenge 1 — 25-/55-Day Delivery: Sealants Cannot Slow Down the MiC Assembly Line
Details
The HKSAR Government needed quarantine capacity in weeks, not months. CSCEC delivered the A-Block (118 units) in 25 days and the B-Block (234 units) in 55 days using Modular Integrated Construction: modules prefabricated in factory, shipped to site, and craned into place. In this workflow every on-site sealing and bonding step is on the critical path — a sealant that needs 24 hours to cure before the next module can be placed, or an adhesive that requires clamping, breaks the 25-day cycle. The system must be instant-grab and fast-tack so modules, panels and interior fit-outs can be positioned, sealed and handed over in hours, not days.
Challenge 2 — Module-to-Module Joint Movement + Hong Kong’s Tropical-Storm Envelope
Details
A MiC building is a steel-framed assembly of discrete modules; every module-to-module joint must absorb thermal expansion, wind load deflection and differential settlement while remaining watertight under Hong Kong’s tropical-storm rainfall (annual rainfall ≈ 2,400 mm, with regular typhoons). Modules also travel from factory to site on trailers — joints are pre-sealed in factory where possible, then re-sealed on site at the interface. The sealant therefore needs high movement capacity (≥ ±25%), low modulus to protect the painted-steel module skin, UV resistance for exposed envelope joints, and enough flexibility to survive transport vibration before cure.
Challenge 3 — Quarantine-Level Hygiene: Independent En-Suites, Anti-Mold, Low-VOC
Details
Every one of the 352 isolation units has an independent en-suite bathroom (toilet, washbasin, shower, water heater — per the February 2020 site report). The facility follows infection-control zoning (clean / semi-contaminated / contaminated zones) with W-trap and anti-backflow valve plumbing to stop contaminated air re-entering rooms. The wet-area sealing inside each unit therefore must be mold-proof (Shore A ≥80 ceramic-grade) under continuous humidity, must not support biofilm, must withstand frequent chemical cleaning, and the whole interior system must be low-VOC (French A+ class) so quarantine residents are not exposed to off-gassing in a sealed, ventilated space.
3. INGADA Solution
| Challenge | Product | One-line Key Advantage |
|---|---|---|
| Module-to-module & external-envelope joints — absorb movement, survive transport & tropical storms, stay waterproof (Challenge 2) | MS-625 Low-Modulus Polyether Sealant | ±25% movement capacity · Ultra-low modulus 0.4 MPa · -40°C to 90°C · 3,000-hour UV resistance · French A+ certified · protects the painted-steel module skin instead of cracking it (per official product page) |
| Rapid on-site module positioning & interior panel bonding on the critical path (Challenge 1) | MS-35 Instant Bond Construction Adhesive | 800 kg/m² instant grab · 3.2 MPa shear strength · 0-sag vertical bonding · -30°C to 100°C · “no drill, no clamp” support-free bonding — keeps the MiC assembly line moving without curing wait (per official product page) |
| Independent en-suite bathrooms of every isolation unit — mold-proof, chemical-cleaning resistant (Challenge 3) | MS-50A High-Hardness Anti-Mold Sealant | Shore A ≥80 ceramic-grade gloss · “hygienic shield” solid-ceramic joint · eliminates mold risk in wet areas where standard sealants fail and peel under constant cleaning (per official product page) |
| Prefab interior flooring & wood decoration in a low-VOC, high-traffic facility (Challenge 1 & 3) | MS-77 Premium Phthalate-Free Flooring Adhesive | 0 phthalate · Load capacity ≤15 kg/cm² · Acoustic ΔLw ≥16 dB · French A+ / FDA / LEED compliant · 100% solvent-free · direct-stuck solid wood & engineered wood on prefab panels (per official product page) |
5. Project Data
| 📦 Supply Volume | ≈3.5 tons |
| 📐 Application Area | A-Block 1,977 m² (118 units) · B-Block 5,976 m² (234 units) · Total ≈ 7,953 m² / 352 isolation units |
| 🛡️ Performance Warranty | design life 20–30 years-B-Block designed & built to Hong Kong permanent-building standard |
| ⏱️ Construction Time Saved | ≈ 50% — prefabrication reduced construction time by at least 50% vs cast-in-place ; A-Block delivered in 25 days vs contract , B-Block in 55 days |
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