CORROSION RESISTANCE
Improved Corrosion Resistance
An inorganic film system limits corrosive-agent penetration on zinc-electroplated surfaces. White- and red-rust SST performance at each plating thickness guides grade selection.
CORE PROPERTIES
Process design for corrosion resistance
and productivity.
We select the Upgrade grade for the target corrosion resistance, plating thickness and existing post-treatment process.
EXISTING LINE
Use Your Existing Line
ELPANG works with existing zinc electroplating lines. We optimize treatment chemistry and operating parameters for the acid or alkaline plating bath and post-treatment configuration.
PROCESS & COST
Process Cost Analysis
Compare chemical unit prices, throughput, operating hours and consumption rates. The calculator immediately shows estimated consumables costs before and after adoption, including the cost difference and percentage change.
See the table below for thickness-specific application references. Test actual parts under the intended process conditions before use.
ELPANG UPGRADE SERIES
Upgrade specifications by plating thickness
and corrosion resistance.
Choose from Upgrade 100, 300 and 500 to match the plating thickness and required corrosion performance.
Performance for Thin Zinc Deposits
Enhances corrosion resistance on components with thin zinc-electroplated deposits.
- Coating thickness
- Approx. 1µm
- Red-rust SST
- 96hr
White-rust SST: 15 hr
Balanced Thickness and Performance
Balances zinc-deposit thickness and corrosion performance across a range of component requirements.
- Coating thickness
- 2–6µm
- Red-rust SST
- 120–300hr
See white-rust SST by thickness in the table below
Higher Corrosion Resistance
Upgrades corrosion performance for demanding components and existing surface-treatment applications.
- Coating thickness
- 3–10µm
- Red-rust SST
- 300–500hr
See white-rust SST by thickness in the table below
The table shows white- and red-rust SST results at each plating thickness. Cost-calculation models are available for Upgrade 300 and 500.
PERFORMANCE BY THICKNESS
White- and red-rust resistance
by plating thickness.
Seven thickness and process conditions from the ELPANG Upgrade System performance data, with separate white- and red-rust SST results.
On smaller screens, scroll horizontally within the table to view all columns.
| Grade | Existing zinc electroplating | After ELPANG application | ||||
|---|---|---|---|---|---|---|
| Thickness (µm) | White-rust SST (hr) | Red-rust SST (hr) | Thickness (µm) | White-rust SST (hr) | Red-rust SST (hr) | |
| Upgrade 100 | ≈1 | 5 | 24 | ≈1 | 15 | 96 |
| Upgrade 300 | 3–5 | 24 | 72 | 2–3 | 48 | 120 |
| Upgrade 300 | 5–6 | 48 | 120 | 3–4 | 72 | 240 |
| Upgrade 300 | 8–10 | 72 | 240 | 5–6 | 72–96 | 300 |
| Upgrade 500 | 6–8 | 72 | 240 | 3–5 | 72–96 | 300 |
| Upgrade 500 | 8–10 | 72 | 240 | 6–8 | 72–120 | 400 |
| Upgrade 500 | 10–12 | 72 | 240 | 8–10 | 72–120 | 500 |
Source documents supplied on 2026-10-01. Each row is an application reference for a different thickness condition, not a maximum-hour guarantee at every thickness. The baseline is unsealed for 100 and sealer-treated for 300/500. Control zinc plating, trivalent passivation and post-treatment, and test actual parts before application. SST hours do not represent service life.
Upgrade 300 · PDF (KO) ↗ Upgrade 500 · PDF (KO) ↗
SALT SPRAY TEST · OBSERVATION
Corrosion behaviour from before exposure to 300 h
Select a product and exposure time to update both the hot-dip galvanized and ELPANG specimen photographs together. Each product has 23 observation time points.
- Hot-dip zinc coating thickness
- 50–70 μm (estimated)
- Electroplated zinc coating thickness
- 3–5 μm (estimated)
- End of salt spray observation
- 300 h
Select the salt spray exposure time
Before exposure
UPGRADE 300 evaluation report, page 3 · same exposure time
Hot-dip galvanizing
Zinc electroplating + ELPANG UPGRADE 300
Hot-dip galvanized specimen observations
The report records no notable features in the pre-exposure appearance.
Electroplated zinc and ELPANG post-treated region observations
The specimen is shown before exposure. The report records no notable features.
Coating thicknesses are estimates; 300 h is the observation endpoint. The photographs are reference records of observations during testing. Use the coating-thickness performance table above for the official application guide.
Test conditions and source documents
The dashed line is positioned for each photograph using the separator on report page 3 and specimen-label registration. Coating thicknesses are estimates. The 300 h value marks the end of observation, not a corrosion-free guarantee. Differences in coating process, thickness and specimen geometry preclude a quantitative performance ratio. These photographs have different sources and conditions from the product reference values by thickness above. The reports do not specify a test standard, chamber conditions, replicate count or quantitative acceptance criteria.
HOW TO APPLY
From process assessment to production.
We assess the current process and target performance, then develop sample-treatment conditions and process economics together.
01. Plating and Post-Treatment Assessment
Identify the acid or alkaline plating bath, rack or barrel process, plating thickness, post-treatment and sealer configuration. Existing white- and red-rust test results are assessed against customer specifications.
02. Process Setup and Sample Evaluation
Set treatment chemistry and process parameters for the target grade, then evaluate corrosion resistance, appearance and dimensions on actual components. Dosage and dilution ratios follow the applicable TDS and line-specific technical specifications.
03. Process Economics and Operating Plan
View estimated consumables costs before and after adoption, the cost difference and percentage change immediately after calculation. Detailed breakdowns and consultation are optional. Total manufacturing-cost analysis also includes labor, energy, equipment adjustments and production conditions.
We support dedicated treatment-chemical supply, line-specific operating parameters and quality control. Technical consultation defines the scope of support and supply terms.
APPLICATION REVIEW
Select a grade for your existing plating line
Evaluate ELPANG Upgrade 100, 300 and 500 against target thickness and white- and red-rust resistance. Start with the bath type, handling method and post-treatment sequence of your electrogalvanizing line.
Document the current process
Provide the acid or alkaline bath type, rack or barrel processing, passivation and sealer use, current plating thickness and test results.
Select the grade and samples
Use the thickness-specific table to review the required white- and red-rust performance. Evaluate corrosion resistance, appearance and dimensions on actual components before finalizing process conditions.
Review production and cost
Prepare chemical purchase prices, throughput, operating hours and consumption data. Add labor, energy and equipment adjustment costs to the Upgrade 300 or 500 consumption-cost estimate when assessing adoption.
Use the latest technical data sheet (TDS) and line-specific conditions for chemical dosing, concentration and dilution. Cost-simulator consumption inputs are not operating instructions for the plating line.
Questions before application
Can the existing line be used?
The system is designed for application to existing electrogalvanizing lines. Chemical and operating conditions depend on bath type, rack or barrel processing, and post-treatment, so assess the current process before defining the changes required.
Does the grade number specify SST hours at every thickness?
A grade name alone does not define the test duration for every component. White- and red-rust SST results vary by thickness within a grade; review the thickness-specific table and required acceptance criteria together.
Does the calculator show actual total manufacturing cost?
The calculator compares estimated consumption costs for the entered conditions and price scenario. Assess supply and transport terms, labor, energy, equipment costs, utilization and yield separately when calculating actual total manufacturing cost.
ECONOMIC SIMULATOR
Compare consumables costs
before and after the upgrade.
Enter your operating conditions to immediately compare
estimated consumables costs before and after adoption.
Key results shown immediately
- 01Estimated consumables costs before and after adoption
- 02Cost per kg and per part
- 03Cost change and percentage change
Detailed breakdowns and consultation are optional.
No contact details are required to view the results.
Estimated consumables costs use a China-reference pricing scenario. Adjustments reflect exchange rates, supply prices, freight, contract terms, process configuration, capacity utilization and yield. Labor, energy and equipment costs are calculated separately.