Product Categories / Metal Treatment / Aluminum Treatment

Duraseal 460 /460A

Product description

Duraseal 460 and Duraseal 460A are dual special
products for the cold saturation sealing of anodized
aluminum surfaces.

Features

  •  Duraseal 460/460A reduce the treatment time and saves energy.

  • Duraseal 460/460A prevents the discoloration of color
    after anodizing and eliminates greenish bloom of anodized surface.
  • Duraseal 460/460A products are suitable for light to mdark color saturation.

Application

  • Duraseal 460/460A products are specially formulated products for the cold impregnation of anodized aluminum
    surfaces at low temperature. Compared to hot water sealing, the cold process reduces the cost of heating and
    improves color shades.

Physical & chemical Properties

  • Duraseal 460

Appearance       Liquid.
Color          Clear Reddish green Color
pH (1%) at 25 oC       5.7 ± 0.3
Sp gr at 25 oC          1.1± 0.05
Miscibility in water       Miscible

  • Duraseal 460 A


Appearance         Liquid.
Color                Colorless
pH (1%) at 25 oC      5.6 ±0.3
Sp.gr at 25 oC       1.1± 0.05
Miscible in water       Miscible 

Equipments

Duraseal 460/460A tanks should be made of stainless
steel or mild steel lined with rubber, PP, PVC, or other
fluoride resistant material.

Process Sequences

  •  Cleaning and degreasing.
  •  Rinsing
  • Etching with Caustic Soda.
  •  Rinsing
  •  Desmutting
  •  Rinsing
  •  Anodizing
  •  Rinsing
  •  Coloring.
  •  Rinsing.
  •  Sealing with Duraseal 460/460A
  •  Rinsing with DI water

Operating Parameters

Duraseal 460 Conc.     16-20 lit/ 1000 lit
Duraseal 460A Conc.       6-8 lit/ 1000 lit
Temperature       25 – 35oC
preferably        28 – 30oC
Time:       0.8 – 1.20 min/μm
pH         6.0 ± 0.5 *

Initial Preparation

  •  Add 16 to 20 lit of Duraseal 460 per 1000 lit of operating volume.

  • Add 6 to 8 lit of Duraseal 460A per 1000 lit of operating volume.

Precautions

  • Prior and after the impregnation process DI water is used. Short rinse with 60 – 80oC hot water rinsing tank enables fast drying of the parts.