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Coil Construction

Coil Construction. File name 18vessel. Making slip. Viscosity Water. Getting Started. Coil or slab base If coil seal both sides Slip and score. Coil and Slab construction. You may use up to 50 percent slab construction. Coil construction.

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Coil Construction

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  1. Coil Construction File name 18vessel

  2. Making slip • Viscosity • Water

  3. Getting Started • Coil or slab base • If coil seal both sides • Slip and score

  4. Coil and Slab construction • You may use up to 50 percent slab construction

  5. Coil construction • You may attempt sculptural form that are decorative

  6. Applying Slip • Why do you need slip? • Viscosity of slip • How do you apply slip?

  7. Scoring • Make sure the surface is roughed.

  8. Scoring • Why do you score? • Scoring should be done after applying slip

  9. Scale drawing • 1/4 inch equals 1 inch • 90 percent accuracy

  10. Not paying attention • Falling apart • Fall on floor

  11. Not sealing • Could separate • lose form • seal every 2-3 coils

  12. Sealing the coils • Add strength to ware • It still may separate even if you done everything correctly

  13. Not scoring properly or enough • What will happen? • Separate

  14. Making more than one • Base can be less than 4-5 inches • Must equal 25 inches

  15. Coil construction • Using different coil construction

  16. Coil Construction • Elephant vessel

  17. Coil Construction • Using tools

  18. Finished surface • Using underglaze • Applying to leather greenware or bisqueware • Not to bone dry greenware

  19. Underglaze decoration • Use to create detail patterns or visual images • Can be applied to greenware or bisqueware

  20. Underglaze with clear glaze • Whether applied to greenware or bisqueware fire underglaze first before applying clear glaze

  21. Glazing bisqueware • Only apply to bisqueware NOT greenware • Glob the glaze do not paint on glaze • Dry foot

  22. Dry footing • Dry foot all ware that is large, heavily glazed or glazes that have a tendency to run

  23. Glazing • Choosing glaze

  24. Glaze • Using more than one glaze

  25. Glaze • 3 glazes applied over each other

  26. Glazeware • Glaze application • Sealing ware • thin application • Runs • Crawling • Crazing

  27. Glaze run • Leaves sharp edge when cooled

  28. Glaze run • Kiln wash prevents it from sticking to the kiln shelf

  29. Glaze run • The run will need to be grind or filed to remove sharp edges • You may not get all or the kiln wash off the bottom

  30. Glaze run • Over application • Over 5 coats most glazes will run. • Do not over apply the glaze, unless you are trying to get a certain textural look

  31. Kiln wash • Glaze left on the shelf must be chiseled off. • Kiln wash must be reapplied

  32. Crawling • Some glazes have a tendency to crawl. • Crawling is when the glaze does not attach to the ware

  33. Evaluation • Sketch 100 pts. • Construction 200 pts. • Following Obj. 100 pts. • Work Ethic 100 pts. • Surface Finish 200 pts. • Total 700 pts.

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