The Universal Selection Source:
Adhesives Ingredients

H 658

Technical DataSheet | Supplied by Nanjing Hongbaoli

Blended polyol. It is a yellow viscous liquid. Exhibits short demold time, high compressive strength and good dimensional stability. Suitable for use in both high and low pressure foaming machines. Used in conjunction with MDI (methylene diphenyl diisocyanate) in cyclo/ iso-pentane blowing systems and rigid polyurethane foams. Recommended formulation is 100 pbw (parts by weight) for H 472, 13 pbw (70/30) for cyclo/iso-pentane blowing systems and 145-150 pbw for MDI.

H 658 Product details

Product Type
Chemical Composition
Physical Form
Liquid, Viscous
Product Status

H 658 Properties


Value & Unit
Test Condition
Test Method
Cream time @ 23-24°C
xxxxxx s
Gel time @ 23-24°C
xxxxxxx s
FRD (Free-rise density) @ 23-24°C
xxxxxxx kg/m3
Closed cell content
xxxx %
Compressive strength
xxxxxx MPa
Dimensional stability @ -30°C, 72 hrs
xxx %
Viscosity @ 25°C
xxxxxxxxxx cP
Mold density
xxxx kg/m3
Hydroxyl number
xxxxxxxxx mg KOH/g
Initial K-factor
xxxxxxx W/m.K
Specific gravity @ 20°C
Tack-free time @ 23-24°C
xxxxxxxxx s
Demold time
xxxxx min
Water content
xxxxxxxxx %
Last edited Dec 18, 2017
Back to Top