H.B. Fuller Cor-Weld™ EC 9551

H.B. Fuller Cor-Weld™ EC 9551 is an additive that is specifically designed for use with starch glue adhesive in the corrugating industry. It can be used with starches based on maize, wheat, and pea, and is compatible with all standard starch glue preparation systems as well as automatic dosage systems.

Chemical Family: Cyanoacrylates, Starches

Functions: Adhesion Promoter, Crosslinking Agent

Features: Excellent Water Resistance, High Moisture Resistance, Water Resistance

Technical Data Sheet
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Enhanced TDS

Identification & Functionality

CASE Ingredients Functions
Industrial Additives Functions

Features & Benefits

CASE Ingredients Features
Industrial Additives Features

Applications & Uses

Applicable Processes
Application Area
Compatible Substrates & Surfaces
Typical Applications

Additive for starch glue formulations. Usable for starches based on maize, wheat and pea.

Suitable Substrates

Typical paper qualities used in the corrugating industry.

Application Method

Application Instructions

Depending on the requirements of the water resistance a dosage of 2,5% to 3,5% or 25 to 35 kg for each 1000 kg ready-to-use starch glue is recommended. To meet the requirement for water resistance according to Fefco No.9, mostly 3,2% or 32 kg is sufficient. The dosage has to be done by running agitator. The final glue viscosity has to be readjusted by the basic formulation. The finished starch glue should not remain in the piping system or storage tanks for extended periods of time without circulation. Own tests according to internal processing standards are important.

Cleaning Instructions

With cold water before the adhesive residues dry.


Typical Properties
ValueUnitsTest Method / Conditions
Viscosity (Sp1, at 20°C)approx. 100mPa.sBrookfield RV
pH Valueapprox. 7--
Density (at 20°C)approx. 1.10g/cm³

Packaging & Availability

Regional Availability
  • Africa
  • Europe (Excluding Russia)
  • India
  • Middle East

Storage & Handling

Shelf Life
9 Months
Storage Conditions

In original sealed packaging protected from sun, dust, moisture and high temperatures. Clean and dry conditions above +0°C.