Which process is commonly used to apply a durable, powdery finish that is heated to cure?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Prepare for the WJEC Level 1 and 2 Engineering Exam. Explore multiple choice questions, flashcards, and detailed explanations to enhance your understanding. Get exam-ready today!

Multiple Choice

Which process is commonly used to apply a durable, powdery finish that is heated to cure?

Explanation:
Powder coating is the process that gives a durable, powdery finish by spraying a dry polymer powder onto a surface electrostatically and then heating it to cure. The heat causes the powder to melt, flow, and chemically cross‑link into a continuous, hard film that adheres well and resists chips and corrosion, even on complex shapes. Other processes don’t fit this description: anodising forms an oxide layer on metals rather than a powdery coating that’s cured in an oven; welding joins metal together; turning shapes or finishes the surface but doesn’t apply a cured powder coating.

Powder coating is the process that gives a durable, powdery finish by spraying a dry polymer powder onto a surface electrostatically and then heating it to cure. The heat causes the powder to melt, flow, and chemically cross‑link into a continuous, hard film that adheres well and resists chips and corrosion, even on complex shapes. Other processes don’t fit this description: anodising forms an oxide layer on metals rather than a powdery coating that’s cured in an oven; welding joins metal together; turning shapes or finishes the surface but doesn’t apply a cured powder coating.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy