H.B. Fuller Fullbor™ WB 6364

H.B. Fuller Fullbor™ WB 6364 is a liquid borate for starch glue adhesives. It increases the bonding properties and mechanical stability of the starch glue used for the corrugated board production. This product functions as a liquid alternative to borax powder.

Chemical Family: Borates, Boron-based Compounds

Functions: Adhesion Promoter, Coupling Agent

Features: Good Mechanical Properties, Long Shelf Life

Technical Data Sheet
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Identification & Functionality

CASE Ingredients Functions

Features & Benefits

Applications & Uses

Application Area
Compatible Substrates & Surfaces
Use Level
0.3 - 0.6%
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 Instructions

This additive is a part of the starch glue formulation and will replace the borax powder in the same position. Normally it will be added by an automatic dosing system by calculated formula. According to the whole amount of the starch glue 0,3 to 0,6% is sufficient.

Remaining starch glue can be handled like the normal glue. The glue viscosity and gel point will stay similar.

Own tests according to internal processing standards are important.

This additive is to be used as:

  • 1,0 kg WB 6364 corresponds to 1 kg borax decahydrate
  • 1,4 kg WB 6364 corresponds to 1 kg borax pentahydrate
  • 1,6 kg WB 6364 corresponds to 1 kg boric acid


Cleaning Instructions

Adhesive residues should be cleaned with cold water before they dry.


Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
pHapprox. 7--
Solids Contentapprox. 54%-
Viscosity (Sp3, at 20°C)1900 - 3800mPa.sBrookfield RV
Densityapprox. 1.32g/cm³-

Typical values only, slight variations may occur but will not affect product’s meeting the standard technical parameters as stated; please consult our CoA for more details (available on request).

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 +5°C. Protect against frost and direct sun radiation.