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Construction&Energy Supply

Prefabricated house first choice!

Prefabricated house, also called industrialized house, is a residential building which is assembled

partly or completely in the factory and then transported to the construction site. The use of polyurethane

pouring system in prefabricated wall panels can realize automatic production. The formation of

dense polyurethane insulation layer in between the precast wall panels can closely bonded with

cement base. Polyurethane is an excellent thermal insulation material, it reduces wall

thickness, improves energy & land saving, as well as material saving.

ADVANTAGE

Polyurethane insulation material has excellent thermal insulation performance, and can meet different flame retardant grade requirements through formula adjustment. Its continuous dense insulation layer is especially suitable for roof insulation and waterproof integrated application, roof spraying and wall insulation.

PROCESS

Mainly for the spray, pouring and discontinuous production of block foam

TECHNOLOGY

Mature technology, customized according to customer requirements

Application

GB Standard
GB/T 50404-2017 Technical Code for Regid Polyurethane Foam Insulation and Waterproof Engineering
Typical Performance
For wall insulation, roofing and cold storage rooms insulation. 
 

Propduct properties

TYPE I 

TYPE II

TYPE III

Foam density(kg/m³)

≥35

≥45

≥55

Compressive strength(kPa)

≥200

Closed-cell rate(%)

≥92

Dimensional stability@70℃ (%)

≤1.5

≤1.5

≤1.0

Thermal conductivity (W/K·m)

≤0.024

 

 

Water absorption rate (%)

≤3.0

≤2.0

≤1.0

Flame retardant grade

B2,OI≥26 Or B1,OI≥30

 
 
 
Low density water spraying system 
 

Propduct properties

Specifications

Foam density(kg/m³)

8~12

Open-cell rate(%)

≥80

Dimensional stability@70℃ (%)

≤1.5

Flame retardant grade

B2

 
 
 
 

For wall insulation, roofing and cold storage rooms insulation. 

Propduct properties

Specifications

Standard

Foam density(kg/m³)

≥45

GB/T 6343

Compressive strength(kPa)

≥200

GB/T 8813

Closed-cell rate(%)

GB/T 10799

Dimensional stability@70℃ (%)

GB/T 8811

Thermal conductivity (W/K·m)

≤0.022

GB 3399

Water absorption rate (%)

≤2.0

GB 8810

Flame retardant grade

B2,OI≥26 Or B1,OI≥30

 

*Different blown agents, such as 141b/245fa/cP, can be used to achieve continuous and discontinuous panel production

**GB/T 50404-2017 Technical Code for Regid Polyurethane Foam Insulation and Waterproof Engineering

 ***GB8624-2012 Classification for burning behavior of building materials and products