Life to First Maintenance: |
20-25 YEARS |
Environment: |
EXTERNAL DECORATIVE |
Environmental Category: |
C3 EXTERNAL ISO 12944:1998 |
Substrate: |
PRE-GALVANISED STEELWORK |
|
610 GMS/M2 85 MICRONS D.F.T. |
|
|
Main steelwork (where applicable: NBS Section G10-clause 640) |
|
|
Protective Coating System: |
Galvanise/2 Pack Acrylic Finish |
Items: |
External Exposed Steelwork (to be specified) |
Preparation (in shop): |
Thoroughly degrease all surfaces. |
Pre-Treatment (in shop): |
Viternus Special Etch Solution
Ref. 070/033 |
|
Colour: |
All surfaces should turn uniformly black to indicate successful
pre-treatment. Refer to technical data sheet for preparation
guidelines pre and post application. |
|
|
Barrier Coat (in shop): |
Viternus 2 Pack High Solids Epoxy Micaeous Iron Oxide
Ref. 215/Series |
|
Dry Film Thickness |
75 microns (nominal) |
Colour: |
To be specified. |
Finish Coat (in shop) |
Viternus 2 Pack Modified Acrylic Finish
Ref. 550/Series. |
|
Dry Film Thickness |
50 microns (nominal) |
Colour: |
To be specified. |
Total D.F.T. (in shop) |
210 microns (nominal) |
|
|
Site Preparation: |
Repair damage to galvanising with
Viternus Zinc Rich Epoxy Primer
Ref. 189/Series, repair shop coats and clean down as specified. |
|
|
Finish Coat (on site) |
Viternus 2 Pack Modified Acrylic Finish
Ref. 540/Series |
|
Dry Film Thickness: |
50 microns (nominal) |
Colour: |
To be specified. |
Total System D.F.T. |
260 microns (nominal) |
Dry film thickness (DFT) readings stated are nominal as defined in ISO12944 Section 5.4 1998.
All coatings detailed should be applied in strict accordance with the product technical data sheets.
The finish is available in a range of colours and gloss levels.
Coated steelwork should be suitably stored to prevent the possibility of ponding water.
Touch up of handling and erection damage should be carried out immediately after erection on site.
Touch up can be carried out after suitable preparation using the same products at the specified d.f.t.
Suitable for exposure during a normal site erection period up to a maximum of 6 months.
To ensure opacity is achieved in a single coat it is necessary to utilise a suitable undercoat shade.
No deviation from the above works treatment to be carried out without prior consultation with Williams Casco
technical department.
This is a summary specification. For full details or further information on specific exposure
contact Williams Casco
technical department.
