Jingdezhen 1300 Porcelain

Result

Notes

Plasticity

Low–Moderate

Smooth, silky, extremely fine particle size. Feels elastic but tears if stretched too far. Doesn’t like aggressive reworking.

Coil Test

Micro surface cracking if overworked

Coils must be compressed carefully. Too much water weakens structure quickly.

Slab Test (20 cm)

Edge cracking + slight memory curl

Thin slabs lift at edges while drying. Needs flipping and compression.

Drying Cracks

High risk at joins

Attachments must be scored deeply + same moisture level. Even slight dryness difference = hairline cracks.

Warping

Moderate–High

Thin flat forms warp easily. Plates and large slabs need support. Organic asymmetry must be balanced.

Shrinkage %

14–16% total

Significant shrinkage. Sculptural proportions must be calculated bigger than final form.

Green Strength

Weak

Bone-dry porcelain chips easily. Carving must be gentle. Fragile before firing.

Bisque Strength

Moderate

Still delicate at bisque. Don’t stack tightly.

Fired Strength

Very high (when vitrified)

Dense, glass-like, rings when tapped. Strong in compression but brittle on impact.

Fired Color

Bright cool white

Very clean white. No iron warmth like some Western porcelains.

Translucency

Excellent

Thin areas glow beautifully. Light passes through at ~2.5–3 mm thickness.

Surface Quality

Extremely refined

Smooth like satin. Ideal for celadons and transparent glazes.

Best Use

Thin sculptural forms, refined detailing, light-interacting work

Wings, delicate spikes, thin edges, light-filtering forms. Not ideal for heavy plant pots.