Practice question · True or false
A body bisque-fired too high may fail to absorb glaze properly.
Hints
- Ask what bisque firing is for.
- It should leave the body porous.
Show the answer
True
Why
True. The bisque firing is meant to leave the body porous so that glaze applied as a water suspension is drawn in and holds. Fire it too high and the body starts to vitrify, the porosity drops, and the glaze runs off or sits too thin, which is why the first firing is deliberately the cooler one.
Practise Firing
The app has 4 more questions on this lesson, and keeps your place in the course. Sculpture I is free to start.
More questions on Firing
- Why do pyrometric cones remain in use alongside electronic temperature control?
- Which are true of quartz inversion at about 573 degrees?
- The same glaze recipe produces the same colour regardless of kiln atmosphere.
- Sort each statement by whether it concerns the BISQUE firing or the GLAZE firing.
- Complete the account of firing.
- A kiln firing is defined as an entire schedule rather than reaching a single peak temperature. What practical…
- At approximately what temperature, in degrees Celsius, does quartz inversion occur?
- Match each firing atmosphere or concept to what it means.
- Arrange the stages of a firing schedule in order.