What is HG-100?
A clear water-based inorganic treatment designed to delay white and black corrosion products and enhance the protection of hot-dip galvanized steel.
In-line post-treatment and corrosion-resistance enhancement of finished products
HG-100 inhibits initial zinc oxidation and delays white rust and black staining. In-line treatment after galvanizing or application to finished products before dispatch maintains surface quality during storage and distribution.
Waterborne inorganic formulation
A water-based formulation described in the product data as odorless and free of organic constituents and specified hazardous solvents.
Inhibition of zinc-layer oxidation
Inorganic constituents interact with the zinc layer to inhibit oxidation.
Delayed white rust and black staining
Delays white and black corrosion products to help reduce appearance-related complaints.
Adhesion in Subsequent Processes
The oil-free inorganic formulation supports subsequent processes such as cement bonding or painting.
| Property | HG-100 | Notes |
|---|---|---|
| Appearance / Odor | Clear and colorless / odorless | Water-based formulation |
| Solids Content | 20±1% | |
| Treatment Thickness | 0.5 µm or less | Thin layer; minimal change in appearance |
| Viscosity / pH | Water-like / pH 11–12 | |
| VOCs | Near 0 | As listed in the catalog property table |
| Dilution / Application | Concentrate 1 : water 2–4 (by mass) | Air spray / electrically powered HVLP gun |
| Storage | 12 months from manufacture | Protect from Freezing |
01
In-line Application on a Galvanizing Line
Cool the surface → remove water → confirm a substrate temperature of 35–40°C → apply → allow to dry naturally. Post-treatment after galvanizing helps control white rust during pipe storage and distribution.
02
Finished-product Application
Confirm a substrate temperature of 10–40°C → apply → blow off any pooled liquid. Used to add protection to already-galvanized finished products.
The catalog includes comparative corrosion-test photographs for hot-dip galvanized specimens against chromate treatment (SST up to 120 hr), round tubes against varnish (SST up to 240 hr), and steel wire at 1:2 dilution (neutral salt spray, 192 hr). Detailed documents are available on request.
Applications in tube production, galvanizing and finished-product treatment
Hot-dip Galvanized Tubes and Pipes
In-line post-treatment for round and square tubes to help control white rust during storage and distribution. (HG-100)
Finished Hot-dip Galvanized Products
Additional protection and appearance retention for finished products before shipment. (HG-100)
Substrates for Subsequent Painting or Cement Bonding
Evaluate the oil-free inorganic formulation where subsequent paint or cement adhesion is required.
Storage and Distribution Quality
Supports appearance quality management during extended storage, ocean freight and other demanding distribution conditions.
Transition to waterborne post-treatment
Sample evaluation is available for lines considering a water-based alternative to corrosion-preventive oils or chromate post-treatment.
The product catalog reports no detection for the specified VOC and RoHS-related substance test items. Refer to the individual test reports for scope and detection limits.
HG-100: Key Questions
Review the application requirements for this hot-dip galvanizing post-treatment.
Where can it be incorporated into a process?
It can be used for in-line post-treatment on galvanizing or tube-making lines, or for additional protection of finished products before shipment.
What should be reviewed before product selection?
Review the galvanizing process, part geometry, subsequent painting, drying equipment, required corrosion-test duration and appearance criteria.
Discuss your HG-100 application
Tell us about the galvanizing or tube-making line, substrate and expected volume. We can advise on product selection and application conditions, with technical and safety data sheets available on request.