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WorksheetsProperties of Surface Coatings
Total questions: 17
Worksheet time: 9mins
Which of these surfaces may require to be sealed prior to decoration?
Graffitied surfaces
Resinous Timber
Bitumen painted downpipes
All the above
Which of these materials would be best suited for sealing large areas to stop "Bleeding" ?
Aluminium Wood Primer
Alkyd Undercoat
Shellac Varnish
Acrylic Undercoat
Which of these paints contains a sacrificial pigment?
Acrylic Primer/Undercoat
Aluminium Wood Primer
Etch Primer
Zinc Rich Primer
Which of these surfaces are porous?
Ceramic Tile
Plastic
Glass
Wood
How does Etch primer work?
It "bites" into the surface and creates a key
It contains a large proportion of Binder
Through Surface Tension
It contains no Pigment
What is an acceptable substitute for Primer on new Copper pipework?
Alkyd Gloss
Thinned Vinyl Matt Emulsion
Thinned PVA Glue
Alkyd Undercoat
Which of these paints are only available under special licence due to toxicity?
Zinc Phosphate
Zinc Rich
Calcium Plumbate
All the above
Which of these paints "Cold Galvanises" steel
Universal Primer
Zinc Rich Primer
Etch Primer
Micaceous Iron Oxide
What is Saponification
Salt crystals deposited on the substrate surface
Paint thickening in the tin and becoming Thixotropic
White bubbles appearing in fresh coat of varnished
Alkali and oil in paint reacting to form a soap.
What is the correct paint to prevent Saponification
Alkali Resistant Primer (ARP)
Aluminium Wood Primer
Acrylic Primer
Alkyd Undercoat
Which of these cannot be used to seal stains?
Shellac Knotting
Thinned Emulsion
French Polish
Aluminium Wood Primer
Oil based paints dry mainly through
Evaopration
Oxidation
Coalescence
Polymerisation
Water based paints dry mostly through
Evaporation
Oxidation
Coalescence
Polymerisation
Spirit based paints dry through
Evaporation
Oxidation
Coalescence
Polymerisation
Two pack epoxy paints dry through
Evaporation
Oxidation
Coalescence
Polymerisation
All paint drying processes begin with
Evaporation
Oxidation
Coalescence
Polymerisation
All paint drying processes finish with
Evaporation
Oxidation
Coalescence
Polymerisation
