Vspray-3 245fa Blowing Agent Polyurethane Spray Foam Blend with 30-40kg/m³ Density and ≤24mW/(m·K) Thermal Conductivity

Price Negotiable

Price: Negotiable

MOQ: 1000 kg

Delivery Time: Peak Season Lead Time: within 15 workdays, Off Season Lead Time: within 15 workdays

Product Description

Product Overview

Vspray-3 is a specialized spray blend polyol system utilizing 245fa as the blowing agent, replacing traditional HCFC-141B. This advanced formulation reacts with isocyanate to produce high-performance polyurethane foam with exceptional characteristics for thermal insulation applications.

Key Performance Features

Fine and uniform cellular structure for consistent insulation
Low thermal conductivity for superior energy efficiency
Excellent flame resistance properties
Outstanding dimensional stability at low temperatures

Application Areas

Ideal for various thermal insulation projects utilizing spray technology, including cold storage rooms, industrial pots, and large-scale pipeline insulation systems.

Physical Properties

Property	Value
Appearance	Pale yellow to brown viscous liquid
Hydroxyl Value (mgKOH/g)	200-300
Dynamic Viscosity at 25°C (mpa.s)	100-200
Specific Gravity at 20°C (g/ml)	1.12-1.20
Storage Temperature (°C)	10-25
Storage Stability (months)	6

Recommended Mixing Ratio

Component	Parts by Weight (pbw)
Vspray-3 Blend Polyols	100
Isocyanate	100-105

Reactivity Characteristics

System temperature at 20°C - values may vary depending on processing conditions

Parameter	Value
Cream Time (seconds)	3-5
Gel Time (seconds)	6-10

Foam Performance Specifications

Property	Test Method	Value
Spray Density	GB 6343	30-40 kg/m³
Closed-cell Rate	GB 10799	≥90%
Initial Thermal Conductivity at 15°C	GB 3399	≤24 mW/(m·K)
Compressive Strength	GB/T8813	≥150 kPa
Adhesive Strength	GB/T16777	≥120 kPa
Elongation at Break	GB/T9641	≥10%
Dimensional Stability 24h at -20°C	GB/T8811	≤1%
Dimensional Stability 24h at 70°C	GB/T8811	≤1.5%
Water Absorption	GB 8810	≤3%
Oxygen Index	GB 8624	≥26