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Formed Finishes
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F6
Surface of high importance. Alignment, appearance very important

F5
Structural surfaces of importance. Frequent close scrutiny

F4
Structural surfaces of importance observed frequently

F3
Exposed surfaces not subjected to close scrutiny

F2
Keying surfaces for plaster and other thick coatings

F1
Roughness permitted: fill tie holes, defects. Colour variation permitted.

Architectural or feature panels. High velocity water channels

Walls, panels, columns, beams, piers, soffits, parapets, railings, offices, foyers, public areas

Walls, panels, columns in secondary areas (e.g. basements, car parks)

Building and engineering structures viewed from afar

Interior and exterior surfaces to be coated

Concealed surfaces. Foundations, lined walls, upstream dam surfaces

Surface plane variation

Sample reference panels required

R

R

R

 

 

 

Abrupt (mm)

1

3

4

6

6

 

Gradual (mm)

4

6

6

6

6

 

Colour

Discolouration

P

P

P

 

 

 

Contamination

P

P

P

 

 

 

Dusting

P

P

P

P

P

 

Retardation

P

P

P

 

 

 

Efflorescence

P

P

P

P

P

 

Acceptable shade range

*

*

*

 

 

 

Physical Irregularities






Blowhole limits

2

3

4

5

7

7

Formwork deflection

2mm

1 / 360

3mm

1 /270

3mm

1 /270

 

 

 

Grout loss / scour

E

P

P

P

 

 

Form tie

A

A

A

 

 

 

Sheet location

A

A

A

 

 

 

Scabbling

P

P

P

P

 

 

Chipping

P

P

P

P

 

 

Spalling

P

P

P

P

 

 

Surface dressing

Filling composition

S

A

S

 

 

 

Method

A

A

A

A

 

 

Action

A

 

 

 

 

 

R=RequiredS=Specifier to stipulateP=Precautions to minimise effectsE=Prevent occurrenceA=Approval required
*If specified shade range required, the finish must be designated with X suffix