Inorganic Zinc-Rich Primer

Inorganic Zinc-Rich Primer

Inorganic Zinc-Rich Primer is formulated with alkyl silicate as the base, utilizing high-purity zinc powder and premium inorganic resins. It boasts a dry film zinc content of over 80%, providing robust electrochemical cathodic protection to metal substrates, effectively blocking corrosion and exhibiting excellent rust-prevention properties.

It is used on pre-treated steel surfaces and as a shop primer for inorganic zinc-rich coatings.



Product Features


- Made from high-purity zinc powder and premium inorganic resins, the dry film contains over 80% zinc, providing strong electrochemical cathodic protection to metal substrates, effectively blocking corrosion and offering excellent rust prevention.


- Exhibits outstanding resistance to acids, alkalis, salt spray, seawater, and atmospheric conditions, effectively withstanding erosion from various harsh environments and ensuring long-lasting durability.


- Exceptional wear and impact resistance: The coating is hard and dense, resistant to abrasion and impact, capable of withstanding mechanical wear and collisions, and protecting metal surfaces from damage.


- Excellent heat resistance: Can endure high-temperature environments with minimal burn-off during heat treatment, making it suitable for anti-corrosion protection under high-temperature conditions.

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Product Comparison


IndicatorInorganic Zinc-Rich Primer(Type 1)

Epoxy zinc rich primerType 1

Epoxy primer
Metal Zinc in Nonvolatiles,%8080NO
Salt Spray Resistance,h
20001000120
Drying Time,h52424

The above indicators for zinc-rich coatings are based on HG/T 3668-2020 zinc-rich coatings.


Scope of Application


Inorganic Zinc-Rich Primer is widely used on the surface of pre-treated steel, as the base layer of inorganic zinc rich coating system, it can effectively enhance the anti-corrosion performance and durability of the coating system.


It is suitable for anti-corrosion of all kinds of steel structures, such as: bridge projects, chemical equipment, steel structure buildings, ship terminals, oil and gas storage tanks, pre-coated primer.


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Technical Parameters


ColorsGrey
Volume Solid35%
FlashpointAbove 21°C
Coating film thickness

Dry film: 40-70 μm/coat

Wet film: 114-120 μm/coat

Theoretical Coating Rate0.366kg/㎡/70μm



Coating System


To achieve its excellent anti-corrosion performance, it is necessary to use a topcoat in conjunction, forming a complete coating system.


It can be paired with epoxy mica iron oxide intermediate coats, Epoxy High-Build Coatings, Acrylic Polyurethane Topcoats, Fluorocarbon Topcoats, and Polysiloxane Topcoats for use.



Application Method


    

  •  Application Temperature: -5°C to 40°C

  •  Mixing: Thoroughly mix using power tools or manual tools until uniform.

  •  Mixing Ratio: Base/ Hardener = 4/1 (by weight)

  •  Application Methods: Airless spraying, air spraying, brush application, roller application (specialized).



Application MethodNozzle SizeSpray PressureThinning Ratio
Airless Spraying

0.43mm-0.53mm

10-15Mpa

5-10%
Air Spraying--------15-20%

Brush application/

Roller application

--------5-10%


Drying Time & Recoat Interval

Temperature5℃20℃30℃
Surface Dry

50mins

30mins15mins
Tack-Free6hrs
3hrs

3hrs

Minimum Recoat Interval24hrs24hrs24hrs
Maximum Recoat Interval///



Surface Preparation:

The steel surface to be coated must be thoroughly cleaned of oil, scale, rust, and old coatings. This can be achieved through shot blasting or sandblasting methods to meet the Swedish standard Sa2.5, with a surface roughness of 30-70 μm. Alternatively, manual cleaning methods can be used to meet the Swedish standard St3, with a surface roughness of 30-70 μm.

 


Safety Measures:

  1. Avoid contact with skin and eyes.


  2. If paint comes into contact with skin, wash with warm water or an appropriate cleaning agent. If paint comes into contact with eyes, rinse thoroughly with water and seek medical attention immediately.

   

        3. Ensure adequate ventilation.


    4. The coating contains flammable substances. Keep away from sparks and prohibit smoking in the vicinity.


    5. Comply with all health and safety regulations on-site.

 

Storage:


    Store in a dry and cool environment, away from heat sources and open flames. Keep containers tightly sealed.
    Shelf Life: 12 months from the date of production (at 25°C).

 

Notice:


    Since the conditions of product use are beyond our control, the information provided here does not constitute a warranty. We are only responsible for the selection of products. Due to the continuous development of our products and manufacturing processes, the content of this manual may be updated at any time. All information is subject to our confirmation. Before using the product, please ensure that you have the latest version of the manual.



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