Civil Engineering Reference
In-Depth Information
Table 17.6 Properties of surface coatin gs/treatments required by the specifier/applicator
Unmixed and freshly mixed
Transition to the dry/
cured state
Fully cured
Short term
Long term
Shelf life
Storage requirements, particularly
temperature
Flash point
Volatile components health, safety
and environmental considerations
Taint, e.g., of nearby foodstuffs
Density and coverage rate
Need for priming
Mixing requirements
Application properties/methods
Effects of ambient/
substrate temperature
Sensitivity to ambient/
substrate moisture, %RH
Usable (pot) life
Gel time
Reaction exotherm (for
some thicker systems)
Rate and extent of cure/
drying vs time
Cure shrinkage (only for
certain thick systems)
Over-coating interval
Dry film thickness
Adhesion
Colour, texture, hiding power, gloss and
reflectance
Barrier properties
Mechanical properties
Fire performance
Electrical properties
Slip/skid resistance
Effect on potable water
Ease of cleaning and nuclear
decontamination
Resistance to graffiti and the ease of its
removal
Change of short-term
properties on exposure
to service conditions
Accommodation of crack
formation and movement
Abrasion resistance
Effects of thermal
cycling/shock
Resistance to water,
chemicals, biological
attack/mould growth,
radiation
Resistance to weathering
Cleanability
Ease of maintenance
 
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