Rigid Polyurethane Resin Foam System for Packaging

Specifications

use water as blowing agent,environmental protection
low density ( 8~10kg/m3),
open cell
good performance of shockproof

Physical Properties 

Items	DBZ-502
Appearance	Light yellow transparent liquid
Viscosity(25°C)        mPa·s	400-600
Specific gravity(20°C)    g/cm3	1.05±0.02
Storage temperature        °C	10-25
Storage life                month	6
Recommended Ratio
	pbw
DBZ-502(POL) Isocyanate(ISO)	100 100

 

Reactivity Characteristics component temperature 20±2°C)actual value varies depending on process conditions

Cream time         s	10-15
Gel time            s	50-70
Tack free time       s	70-90
Free density      kg/m3	8-10

 

Foam Performances 

Recovery rate compressive by 50%     %	≥90
Compressive strength              MPa	≥0.05

 

 

Introduction 

 

This product is a mixture of high activity, high molecular weight polyether poyol and different kinds of catalyst,blowing agent and other materials.  

 React with Isocyanate to produce the foam which can absorb shock when impacted, it has excellent performances of shockproof and shock absorption.

 It applies to precision instrument, apparatus, medical instrument, optical instrument, crafts, fragile goods, glasswares and other goods foaming in site.