Vspray-3 Polyurethane Spray Foam Blend Polyols 100-105 Ratio with 245fa Blowing Agent for Thermal Insulation

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 high-performance polyurethane spray foam blend polyols system using 245fa as the blowing agent, replacing HCFC-141B. When reacted with isocyanate, it produces foam with exceptional insulation properties suitable for various thermal insulation applications.

Key Performance Features

Fine and uniform cell structure for consistent insulation
Low thermal conductivity for superior energy efficiency
Excellent flame resistance for enhanced safety
Good low temperature dimensional stability

Application Areas

Ideal for thermal insulation engineering using 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

Measured at system temperature of 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/T 8813	≥150 kPa
Adhesive Strength	GB/T 16777	≥120 kPa
Elongation at Break	GB/T 9641	≥10%
Dimensional Stability (-20°C, 24h)	GB/T 8811	≤1%
Dimensional Stability (70°C, 24h)	GB/T 8811	≤1.5%
Water Absorption	GB 8810	≤3%
Oxygen Index	GB 8624	≥26