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Refractory Cement: Manganese and Zinc White in Soluble Glass (Spon's Workshop Receipts)
Spon's second fireproof and waterproof cement: equal parts of sifted peroxide of manganese and finely ground zinc white, made into a thin paste with commercial soluble glass and used at once.
Spon rates it as hard and heat-resistant as the clay and iron-filings cement.
Source: Spon, Workshop Receipts, first series, p. 24. Picture: the recipe.
Beginner
Unknown
Instructions
1
1
Prepare the powders
Prepare the powders
Sift peroxide of manganese and pulverize zinc white well. Mix equal parts of the two.
Materials for this step:
Manganese Dioxide (Pyrolusite)1 1 part, sifted
Zinc Oxide Powder1 1 part, well pulverizedTools needed:
Sieve Set (Graded Mesh)
Mortar and Pestle2
2
Make the paste and use it at once
Make the paste and use it at once
Add enough commercial soluble glass to make a thin paste. Use it immediately.
Materials for this step:
Water Glass (Sodium Silicate Solution)1 enough for a thin pasteTools needed:
Mortar and PestleMaterials
3- 1 1 part, siftedPlaceholder
- 1 1 part, well pulverizedPlaceholder
- 1 enough for a thin pastePlaceholder
Tools Required
2- Placeholder
- Placeholder
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