Inorganic Zinc-Rich Primer

Name: Inorganic Zinc-Rich Primer
Brand: Tianjin Jinhai Special Coatings & Decoration Co., Ltd.

Inorganic zinc-rich primer is alcohol-soluble inorganic zinc-rich paint. The paint consists of alkali metal silicate as component one, zinc dust and pigment as component two. The paint has excellent anti-corrosion effect, can withstand temperature as high as 400°C, and has excellent resistance to crude oil and solvents. The paint can be used in oil tanks, solvent tanks, ballast water tanks and marine steel structures, bridges, chimneys which are in harsh environments and conditions and can also be used as anti-rust and heat-resistant coating.

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Advantage of Inorganic Zinc-Rich Primer

Good cathodic protection
Fast drying property providing handling and packing and subsequent painting only after short period
of time.
Good mechanical wear resistance and organic solvents resistance
Excellent initial hardness
Good heat resistance withstanding a high temperature below 400℃

Specification of Inorganic Zinc-Rich Primer

Type	Solvent
Solid Content	70%
Mixing Ratio	two components base : hardener=4:1 by weight
Dry Film Thickness	50μm per coat
Specific Gravity	1.8kgs/Liter
Coverage Rate (Theoretical)	0.15kg/m²/50μm 0.085liter/m²/50μm
Drying Time	Temperature	0℃	10℃	20℃	30℃
	Dry to touch	12mins	8mins	6mins	5mins
	Dry Hard	24hrs	18hrs	12hrs	10hrs
Package	25kgs for one kit, part A 20kgs, part B 5kgs

Why should a layer of sealer be applied to the surface of the inorganic zinc-rich primer?

The surface of the inorganic zinc-rich primer has a porous structure, and there will be residual air inside. It is easy to produce bubbles when overcoating other coatings. To solve the problem of bubbling, a sealer paint needs to be applied.

What is the difference between epoxy zinc-rich primer and inorganic zinc-rich primer?

Epoxy zinc-rich primer has less requirements for substrate treatment than inorganic zinc-rich primer. The film toughness of epoxy zinc-rich primer is better than that of inorganic zinc-rich primer.

The anti-corrosion, salt spray resistance and self-repairing of inorganic zinc-rich primer are higher than epoxy zinc-rich primer.

Epoxy zinc-rich primer must be used with weather-resistant topcoat. Generally, epoxy intermediate paint is also used.

The inorganic zinc-rich primer can be used directly without the top coat.

In general, the corrosion resistance of inorganic zinc-rich primer is better than epoxy zinc-rich primer, but it is not as good as epoxy zinc-rich primer in terms of workability and repairability.

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