Zintek®, Techseal®, Techdip

Zinc flake technology – Zintek®, Techseal® and Techdip top coats

The right finish for highest corrosion protection

Atotech’s line of top coats can be used in tandem with zinc flake base coats as well as electroplated zinc or zinc alloy layers to form a multipurpose coating with additional benefits. These include increased protection against corrosion, as well as specific coefficient of friction ranges.

With the Zintek® Top (L) series, Atotech introduces a range of water-based, mineral reactive top coats. While only 0.5 - 1 micron thick, these top layers greatly improve both corrosion protection and the mechanical properties of the base coat.

The Zintek® Top S (L) products provide excellent protection specifically to zinc and zinc-alloy plated parts. With these top coats, black parts receive a uniform, glossy shield against corrosion.

The organic Techseal® product line delivers the highest level of chemical resistance, homogenous appearance, and increased corrosion protection with defined friction values.

Techdip products are also UV-resistant and distinguished by their first-rate adhesive properties. Beside of the high chemical resistance also good results are achieved in the Kesternich Test 2.0 with Techdip finishes.

Top Coats

Product ColorFeaturesTypical Application
Inorganic Top Coats
Zintek® TopTransparent- Cr-free and solvent-free mineral top coat
- Water-based with transparent silicate
- Reactive sealing additive
- Low drying temperature: 50 - 200 °C
  Suitable on top of zinc flake
  base coats on every kind
  of part
Zintek® Top LTransparent- Range of products that include internal lubricant
  for torque tension adjustment
  Used on metric fasteners
  by dip spin application
Zintek® Top S (L),
Zintek® Top Black S (L)
- Range of solvent based products with or
  without internal lubricant
- Excellent adhesion
- Improved corrosion protection, especially delay
  of white corrosion formation
- Appealing glossy black finish
- Dip spin or spray application
- Fasteners (e.g. screws, nuts,
  springs, etc.)
- On plated Zn or Zn alloys,
  mechanical or sheradized
  Zn layers and on Zn flakes
Organic Top Coats
Techseal® Silver WL, SL
Techseal® Black SL
- Range of Cr(VI)-free top coats
- Water-based W or solvent-based S versions
- Very good performance in neutral salt spray test
- Includes internal lubricant to adjust torque
  tension requirements
- Very good chemical resistance
- Excellent adhesion
- Suitable for zinc flake coatings
  as well as zinc and zinc alloy
- Dip spin, spray or dip drain
Techdip Silver SL
Techdip Black SL
Techdip Black WL
- Range of UV-resistant top coats
- High Kesternich resistance
- Very good performance in neutral salt
  spray and ACQ test
- Excellent adhesion
- Excellent chemical resistance
  Dip spin or spray application

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