Industrial Spray Foam Insulation – Based Closed-Cell Polyurethane FY501W

Industrial Spray Foam Insulation – Based Closed-Cell Polyurethane FY501WClosed Cell PU Foam Water Based (FY Spray 501W) Per Set The FY Spray 501W is a two component, spray applied, closed cell polyurethane foam system. Formulated with water as the blowing agent (141b free), it is environmentally friendly and delivers superior thermal insulation, waterproofing, and fire retardancy. This product is designed for a wide range of spray applied thermal insulation engineering projects such as: Building exteriors & interiors Cold

Closed-Cell PU Foam – Water-Based (FY-Spray 501W)

Per Set

The FY-Spray 501W is a two-component, spray-applied, closed-cell polyurethane foam system.
Formulated with water as the blowing agent (141b-free), it is environmentally friendly and delivers superior thermal insulation, waterproofing, and fire retardancy.

This product is designed for a wide range of spray-applied thermal insulation engineering projects such as:

• Building exteriors & interiors
  
• Cold storage rooms
  
• Large-scale pipelines
  
• LNG or LPG ships 

Key Features

Eco-Friendly: Water-based, 141b-free, safe for the environment
Superior Insulation: Initial thermal conductivity ≤ 35 mW/(m·K)

Strong & Durable:

• Compressive strength ≥ 160 kPa
  
• Tensile strength ≥ 120 kPa

Dimensional Stability:

• ≤1% change @ -30℃ (48h)
  
• ≤2% change @ 80℃ (48h)

Water Absorption: ≤1%
Fire Retardant: DIN 4102-1 B2 rating 

Physical Properties

• Appearance: Pale yellow to brown viscous liquid
  
• Viscosity (25℃): 400–800 mPa·s
  
• Specific Gravity (20℃): 1.05–1.15 g/ml
  
• Storage Temperature: 10–25℃

Shelf Life: 8 months 

Recommended Mixing Ratio

• FY-Spray 501W Blend Polyols: 100 pbw
  
• Isocyanate: 100–105 pbw

Reactivity Characteristics (20℃):

• Cream time: 3–5 seconds
  
• Gel time: 10–15 seconds 

Applications

• Commercial and residential building insulation
  
• Cold chain storage (freezers, cold rooms)
  
• Industrial and marine pipelines
  
• LNG/LPG shipping insulation

Water-Based PU Foam (FY-Spray 501W) vs. Non-Water-Based PU Foam
1. Blowing Agent (Foam Expansion)

Water-Based (FY-Spray 501W):

• Uses water as the blowing agent.
  
• Reaction releases CO₂ gas, expanding the foam.
  
• Environmentally safe, no ozone depletion. 
  
• Non-Water-Based (HCFC/HFC, e.g., 141b, HFC-245fa):
  
• Uses chemical blowing agents.
  
• Some have ozone-depleting potential (ODP) and high global warming potential (GWP).
  
• Many are banned or regulated worldwide.

2. Environmental Impact

• Water-Based:
  
• Ozone-friendly
  
• Lower GWP
  
• Compliant with current global regulations (EPA, EU REACH, Montreal Protocol phase-outs).

Non-Water-Based:

• May contain restricted chemicals (e.g., 141b phased out in most regions).
  Higher environmental risk.

3. Foam Properties

Water-Based:

• Slightly higher density foam (≥45 kg/m³ for FY-501W) 
  
• Excellent dimensional stability
  
• Reliable fire retardancy (DIN 4102 B2)
  
• May have a bit slower curing speed depending on temperature/conditions.

Non-Water-Based:

• Can achieve very low thermal conductivity (slightly better insulation per inch).
  
• Sometimes easier to process in cold weather.
  
• But dimensional stability can be lower under temperature swings.

4. Health & Safety

Water-Based:

• Safer for installers (fewer harmful emissions).
  
• Reduced odor and toxicity during spraying.

Non-Water-Based:

• Fumes can be more harmful, requiring stricter PPE & ventilation.

5. Cost & Market Use

Water-Based:

• Slightly higher upfront chemical cost in some regions.
  
• Growing demand due to eco-regulations and green building standards.

Non-Water-Based:

• Historically cheaper, but regulations are limiting supply.
  
• Still used in some developing regions without strict chemical bans.

Summary

4 in=10.16cm, 1 set can do about 110-130sqft.
6 in=15.24cm, 1 set can do about 75-85sqft.

Water-Based PU (like FY-Spray 501W):
Eco-friendly, regulation-compliant, waterproof, fire-retardant, long-term solution.

Non-Water-Based PU (HCFC/HFC):
Sometimes slightly better insulation efficiency but bad for the environment and being phased out worldwide.

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