Double-component Rigid Polyurethane Spray Foam Insulation

Isocyanate (MDI) and Blended Polyol

1.     Introduction 

Part A is high density spray blend polyols, it reacts with Part B--isocyanate to produce foam which has excellent performances, which are as follows.

1. Fine and uniformity cells.

2. Low thermal conductivity.

3. Perfect flame resistance

4. Good low temperature dimensional stability.

It applies to all kinds of thermal insulation engineering which use the spray technology, such as cold storages, pot, large-scale pipelines, construction roofs and all types of abnormity thermal insulation projects.

2.     Physical property

 

Standard:GB/T 19250-2003
No	Item		Ⅰ	Ⅱ
1	Solid content,% ≥		92
2	Dry time,h ≤	Dry time of Outside	8
		Dry time of Inside	24
3	Fracture tensile strength, Mpa  ≥		1.9	2.45
4	Breaking elongation,(normal temperature),% ≥		450	450
5	Water impermeablility,0.3Mpa 30 min		Impermeable
6	Flexilility at low temperature,°C  ≤		-35
7	Bonding strength of Moist base,Mpa  ≥		0.5
a.	It is only required for moist substratum of underground project.

 

3. Recommended ratio 

Item	pbw
Blend polyols	100
Isocyanate	100-105

 

the temperature of component is 20°C, the actual value is varied according to pipe diameter and processing condition.

4.Products reactivity

 

No.	Item	Specification
1	Cream time, s	3-5
2	Gel time, s	6-10

 

Packing&Shipping

220kg/barrel--Polyol(component A)

250kg/barrel--ISO (component B)

as per minium order,we can accept any quantity,but preferly with whole package as:220kgs/drum for A part and 250kgs/drum for B part.