The best way to learn is to practice. With our specialized team your success is guaranteed.
Number of students is limited to the 10 students per course. To reserve your place on time, subscribe to the ArtCasting course and we will contact you:
Hollow Lost wax ceramic shell method
1. Terracotta model
2. Fixing the model
a-clay-making the bed,b-slat,c-working desk,d-silicon rubber,e-katalist. f-K-soap (to prevent sticking)
3. Coating Pottasium soap
4. Coated model
5. Mixing the components
rubber and catalyst
6. Covering model with rubber
7. Model covered in rubber
8. Setting up the template for pouring plaster-making the "mother mold"
9. Making a gypsum mixture
10. Hemp for the plaster reinforcing
11. Pouring of plaster mixture over the rubber
12. Reinforcement with hemp is inserted
13. Plaster mother mold
14. Turning the mold to 180o
a) mother b) footprint of the rubber c) model
15. Digging the markers
in order to facilitate the assemblage of the mold halves
16. Complete plaster (mother) mold
17. Opening the mold
18. Coating and draining a waxy layer
19. Complete mold with a waxy layer
20. Strengthening the mold with a wire
21. Increasing wall thickness of the wax model
22. Armature (reinforcement) of core
23. Set the armature core and ingates
Note the hand burner, for sticking the wax pipes to the model
24. Details of the armature core and ingates
a-pad of clay, b-armature core, c-ingates of wax tubules
25. Polystyrene mold to produce wax tubules
26. Wax tubules
27. Gating system
a-pouring basin, b-ingates, c-vents
28. Making the shell mixture:
water+plaster+ground brick
29. Making the shell
30. Trimming and smoothing shells
31. Opening the mold
32. Removing silicon rubber from the wax model
33. Wax model and the lower part of the shell
34. Retouching, trimming and repair wax model
35. Typing nails
For easy attachment and reinforcement second part of the shell
36. Tamlate of tin
37. Armature for shell
38. Armature and template
39. Pouring mixture of shell-completion
40. Drying and aggravation
41. Shell
42. Dewaxing in the hothouse
43. Kiln for baking the shell
44. Transport shells
45. Backfilling the casting pit
46. Tilting the furnace
47. Casting shell
48. Kicking off the shell
49. Appearance of chilled cast with gating system
50. Cuting the gating system
51. Raw casting
52. Cold patination
Applying liver of sulphur (K2S)
53. Cold patinated head
54. Applying the flame
55. Hot patination
Note flame and painting with brash
56. Hot patinated head in ligh off
Making the ceramic shell of expensive materials
1. Preparing mixture of the core
1 vol. plaster + 2.5 vol. mullite+water
2. Pouring core mixture into wax model
3. Model with ceramic core
4. Fixing the core of nails
5. Applying a slurry to the model by immersion
Slurry is made of: 2 vol.of fused silica (grade 200mesh~0.074mm) + 1.25 vol. of colloidal silica
6. Drainage of excess slurry
7. Making the first layer of the shell
With zircon sand (grade 100 mesh~0.15mm)
8. First layer of the shell
9. Drying for 2h
10. Applying the slurry by immersion
11. The second layer
made of Mullite stucco sand-grade 80mesh~0.2mm
12. Drying overnight at room temperature
In the same way was applied next for layers.They were made of Alumina- grade 14/28mesh~1.2/0.63mm
13. Dewaxing and firing shells
In the oven up to 900°C
14. Filling shells with sand in the template
15. Shell is ready for pouring
At this outer temp of the shell is 500°C
16. Pouring liquid bronze into shell
17. Cooling
18. Knocking off the shell
