PU FOAM SPRAY IN BANGLADESH
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Best PU Foam Spray in Bangladesh 2025 | Expotech – Roof Insulation & Waterproofing Experts
Expotech is recognized as the best PU Foam Spray company in Bangladesh, providing complete insulation and waterproofing services for all types of infrastructures — from industrial plants and commercial complexes to private residences. Our polyurethane (PU) foam insulation technology is designed to tackle the unique challenges of Bangladesh’s tropical climate — including high humidity, heavy rainfall, and extreme heat.
When it comes to thermal insulation and waterproofing, Expotech’s PU Foam Spray stands unmatched in performance, durability, and cost efficiency.
What is PU Foam Spray in Bangladesh?
PU Foam Spray, or Polyurethane Foam Spray, is a two-component system where liquid materials (polyol and isocyanate) react chemically and expand to form a rigid foam. This foam instantly seals cracks, joints, and gaps, forming an unbroken protective layer.
Expotech uses high-pressure, imported spray machines and ISO-certified foam chemicals to ensure consistent density and maximum coverage.
It is widely used in:
Roof insulation for factories, cold storage, and warehouses
Wall insulation for industrial buildings
Refrigeration and pipeline coating
Soundproofing for studios and commercial halls
Expotech’s precise spraying method guarantees a perfect density of 35–45 kg/m³, making it the best PU foam insulation system in Bangladesh.
Key Benefits of the Best PU Foam Spray in Bangladesh
🔸 1. High Thermal Resistance (R-Value)
Our PU Foam Spray has an R-value of 6.5 per inch, one of the highest among insulation materials, ensuring superior thermal performance.
🔸 2. Excellent Waterproofing
The closed-cell structure prevents water ingress entirely, providing a watertight barrier for years.
🔸 3. Corrosion Prevention
By isolating metal surfaces from moisture, it prevents corrosion in industrial sheds and tanks.
🔸 4. UV & Weather Resistance
Expotech adds a UV-protective coating that extends the foam’s lifespan even under direct sunlight exposure.
🔸 5. Long Service Life
Our foam insulation performs efficiently for over 20 years without significant degradation.
🔸 6. Green & Eco-Friendly Solution
The foam is CFC-free, non-toxic, and environmentally safe — perfectly aligned with sustainable building practices.
Applications of the Best PU Foam Spray in Bangladesh
| Sector | Application Details |
|---|---|
| 🏭 Industrial | Metal roof insulation, duct lining, pipelines |
| 🏢 Commercial | Office roofs, malls, and hospitals |
| 🧊 Cold Storage | Temperature retention and condensation prevention |
| 🏠 Residential | Roof & wall waterproofing, energy savings |
| 🐓 Agricultural | Poultry farm roof cooling, hatchery insulation |
Expotech’s experienced applicators ensure smooth coverage and strong adhesion on both metal and concrete surfaces.
How Expotech Performs the PU Foam Spray Process
Surface Cleaning & Drying – Removal of dust, rust, or grease for maximum bonding.
Machine Calibration – Adjusting the ratio of polyol and isocyanate to ensure uniform cell structure.
Spray Application – Foam is sprayed in multiple passes for desired thickness (typically 25–50 mm).
Expansion & Curing – Within seconds, foam expands and cures, forming a rigid, durable layer.
Protective Coating – UV-resistant sealant applied for protection from sunlight and physical damage.
This step-by-step procedure ensures Expotech’s system is the best PU foam spray method available in Bangladesh.
🧰 Why Expotech is the Best PU Foam Spray Company in Bangladesh
🧠 Over 10 Years of Professional Experience
🧱 ISO-Certified Materials from global suppliers
⚙️ Advanced High-Pressure Spray Machines
💰 Affordable Pricing Without Compromising Quality
🌎 Eco-Friendly & Energy-Saving Solutions
🧾 Custom Designs Based on Roof Type and Environment
🧰 Warranty & After-Sales Maintenance Support
Expotech’s engineering team constantly monitors every project, ensuring foam density, coverage uniformity, and safety compliance.
🔍 Comparison: PU Foam vs Other Insulation Systems
| Feature | PU Foam | Glass Wool | Rock Wool | Thermocol |
|---|---|---|---|---|
| Thermal Efficiency | ⭐⭐⭐⭐⭐ | ⭐⭐ | ⭐⭐ | ⭐ |
| Waterproof | ✅ | ❌ | ❌ | ❌ |
| Durability | 20+ years | 5 years | 7 years | 3 years |
| Seamless Application | ✅ | ❌ | ❌ | ❌ |
| Maintenance Need | Very Low | Medium | Medium | High |
The table clearly shows why Expotech’s PU foam spray is the best insulation solution in Bangladesh, both technically and economically.
🧽 Maintenance & Longevity Tips
To ensure maximum lifespan:
Inspect the foam layer annually for cracks or damage.
Apply UV topcoat every 5–7 years for extra protection.
Avoid mechanical drilling or walking directly over sprayed surfaces.
Keep roof drainage clear to prevent water stagnation.
Following these maintenance practices, Expotech’s PU foam insulation can last over two decades without performance loss.
🧩 Frequently Asked Questions (FAQ)
Q1: How long does PU Foam Spray last in Bangladesh’s weather?
👉 With proper coating, it lasts 15–20 years easily, even in tropical heat.
Q2: Can PU Foam Spray reduce electricity bills?
👉 Yes. It reduces AC load and heat gain, saving up to 40% energy annually.
Q3: Is PU Foam safe and eco-friendly?
👉 100% safe — Expotech uses CFC-free and fire-retardant materials approved by international standards.
Q4: Can PU Foam be applied to existing roofs?
👉 Yes, Expotech can spray directly on metal, RCC, or asbestos surfaces after basic cleaning.
Q5: How much does PU Foam Spray cost per square foot in Bangladesh?
👉 Typically BDT 130–250/sq.ft, depending on thickness, material, and project size.
🌍 Industry References
These references validate Expotech’s alignment with global insulation and waterproofing standards.
📈 Why PU Foam Spray is the Best Insulation Choice for 2025
The world is rapidly moving toward green building technologies, and Bangladesh is following the same path. With continuous urbanization and rising temperatures, energy-efficient construction is no longer optional — it’s essential.
That’s where Expotech’s Best PU Foam Spray becomes the perfect solution. It’s lightweight, durable, waterproof, and energy-saving — all in one application. No other insulation product in Bangladesh offers this combination of performance and lifespan.
