Sealing Hole Pre-treatment Agent DIA SR100

Used to enhance the corrosion resistance (alkali resistance, saltwater resistance) of aluminum anodized products, it is a pretreatment agent applied before high-temperature sealing. It complies with RoHS directives and environmental requirements, and does not contain nickel or the four heavy metals (lead, mercury, chromium, cadmium).

Classification:

Auxiliaries

Tag:

online message

Product Details

Used to improve the corrosion resistance (alkali resistance, saltwater resistance) of aluminum anodizing products, it is a pretreatment agent implemented before high-temperature sealing. Complies with RoHS directives and environmental requirements, free of nickel and the four heavy metals (lead, mercury, chromium, cadmium).

Features:

Improves the sealing quality of the anodized film, helping to achieve better results in product weather resistance tests by enhancing corrosion resistance.
Will not be contaminated by colored product treatment water.
Operates at room temperature, no additional thermal management costs required.

Properties:

Appearance: Light brown liquid
Specific gravity: 1.020 (20°C)

Usage method:

	Standard	Range
Concentration	40mL/1L	30-50mL/1L
pH value	3.8	3.6-4.4
Temperature	23°C	21-25°C
Time	120 seconds	100-180 seconds
Tank material	Stainless steel (SUS 304) or plastic tank
Filtration	It is recommended to use continuous filtration with a filter cloth mesh aperture of 20-50μm.

Precautions:

The maximum concentration is 7mL/L and should be used at this concentration. If the concentration increases, discoloration and powdering of colored water may occur.
When preparing the bath, use D.I WATER (distilled water) to avoid using groundwater and tap water containing metal salts, as this may shorten the product's lifespan.

Management method:

Bath preparation: Dissolve this product evenly in water to disperse it in the tank. Use DI WATER (distilled water) for water.
Washing: Wash both before and after.
Supplement: The standard consumption per square meter is 3-5mL. However, it varies depending on the shape of the treated product, treatment concentration, usage period, and final state. Supplement based on calculated experience values applicable to each site.
Replacement: The replacement cycle is about 1-2 weeks. Replace the liquid if too many impurities (inorganic, organic) are mixed in, or if discoloration occurs during the sealing process after supplementation.
Wastewater: The main component is a special surfactant, free of any heavy metals, thus there are no wastewater issues caused by heavy metals.

Process:

Anodizing → Washing → Dyeing → Washing → DIA SR-100 → Washing → High-temperature sealing agent → Washing → Soup washing