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Coil Construction File name 18vessel. Making slip n Viscosity n Water.

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Presentation on theme: "Coil Construction File name 18vessel. Making slip n Viscosity n Water."— Presentation transcript:

1 Coil Construction File name 18vessel

2 Making slip n Viscosity n Water

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

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

5 Coil construction n You may attempt sculptural form that are decorative

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

7 Scoring n Make sure the surface is roughed.

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

9 Scale drawing n 1/4 inch equals 1 inch n 90 percent accuracy

10 Not paying attention n Falling apart n Fall on floor

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

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

13 Not scoring properly or enough n What will happen? n Separate

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

15 Coil construction n Using different coil construction

16 Coil Construction n Elephant vessel

17 Coil Construction n Using tools

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

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

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

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

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

23 Glazing n Choosing glaze

24 Glaze n Using more than one glaze

25 Glaze n 3 glazes applied over each other

26 Glazeware n Glaze application n Sealing ware n thin application n Runs n Crawling n Crazing

27 Glaze run n Some glazes run more than others

28 Glaze run n Leaves sharp edge when cooled

29 Glaze run n Kiln wash prevents it from sticking to the kiln shelf

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

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

32 Kiln wash n Glaze left on the shelf must be chiseled off. n Kiln wash must be reapplied

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

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38 Evaluation n Sketch 100 pts. n Construction 200 pts. n Following Obj. 100 pts. n Work Ethic 100 pts. n Surface Finish 200 pts. n Total 700 pts.


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