A Guide to Galvanizing
The entire galvanizing process consists of different steps, from the loading, pre-treatment to the zinc bath submersion. There are some considerations to take note of before sending materials for galvanizing to ensure that the galvanizing coating will be of top quality.
1. Draining / Vent holes
2. Cropped corners / Notches
3. Lifting, Hooking points
WHY IS IT IMPORTANT?
These points are important for:
1. For the loading of the materials on jigs
2. Proper angle for good draining time to allow fluids to flow in and out quickly and steadily
4. MATERIAL CONDITION (RUSTY, OILY, PAINTED, LACQUERED)
RUSTY, OILY, PAINTED, LACQUERED
Why are such conditions a problem?
The regular washing process in galvanizing is unable to wash such coatings, resulting in:
i. Uncoated areas
ii. Surface roughness
iii. Peeling galvanized coatings
Such materials are advised to undergo special pre-treatment such as sandblasting