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Red Slip: Terracotta Clay Stirred into Water and Sieved
Slip is clay made liquid with water. Red slip, from red terracotta clay, coats a pot or lamp in an even red skin, joins parts of leather-hard ware, and is painted or trailed on as decoration. Soak the dry clay, stir it smooth, sieve it, and thin it until it pours like cream.
The picture: a sherd of Roman red-slipped ware (St Albans District Council, CC BY-SA 4.0).
Beginner
A day
Instructions
1
1
Soak
Soak
Break the dry red clay small, weigh it and sprinkle it onto water in a bucket. Leave it to soak overnight.
Materials for this step:
Terracotta Clay2 kg
Water2 litersTools needed:
Balance Scale
Metal Bucket with Lid
Dust Mask2
2
Stir smooth
Stir smooth
Stir it hard with a paddle until there are no lumps.
Tools needed:
Wooden PaddleMetal Bucket with Lid3
3
Sieve and thin
Sieve and thin
Push it through a fine sieve to take out grit and stones, then add water a little at a time until it pours like cream. Keep it covered.
Tools needed:
Sieve Set (Graded Mesh)Metal Bucket with Lid
Glass Jar4
4
Clay and water
Clay and water
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