Surface treatments and finishes (AQA GCSE Design and Technology): Flashcards
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14 cards from this deck
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Practise the cards
14 cards from this deck
What are the three main surface treatments for polymers?
What are the three main surface treatments for polymers?
Polishing, printing, and applying vinyl decals
Why are surface treatments used on polymers?
Why are surface treatments used on polymers?
To enhance visual appeal and functionality
What surface defect are polymers particularly vulnerable to?
What surface defect are polymers particularly vulnerable to?
Scratching
Stage 1 of polishing process
Stage 1 of polishing process
Use coarse abrasive to remove major marks
Stage 2 of polishing process
Stage 2 of polishing process
Fine wet and dry paper to remove remaining marks
Stage 3 of polishing process
Stage 3 of polishing process
Appropriate abrasive polish for final smooth finish
What wet and dry paper consists of
What wet and dry paper consists of
Silicon carbide grit bonded to paper backing
What lower grit numbers indicate
What lower grit numbers indicate
Coarser textures
Another name for hydrographic printing
Another name for hydrographic printing
Water transfer printing
What type of shapes does hydrographic printing suit best?
What type of shapes does hydrographic printing suit best?
Complex 3D shapes
What softens polymer in hydrographic printing
What softens polymer in hydrographic printing
Activator chemical
Key characteristic of heat transfer printing
Key characteristic of heat transfer printing
High-quality, photo-realistic prints
Application approach used for vinyl decals
Application approach used for vinyl decals
Peel-and-stick
Why outdoor-grade vinyl is needed
Why outdoor-grade vinyl is needed
Withstands UV light degradation