Rubber Erasers and the Mixing of a Soft CompoundSettle in for a quiet exploration of Rubber Erasers and the Mixing of a Soft Compound. This episode follows Rubber Erasers and the Pencil Marks They Meet; Bread Crumbs, Early Rubber and the Stationer’s Counter; From Tree Latex to Dry Rubber; Long Molecules and the Meaning of Softness; The Batch Sheet and the Weighing Bench; Factice, the Oil-Derived Part of the Compound; Mineral Fillers, Abrasives and Colour; Working the Compound Between the Rolls; Sheets, Resting Stock and Measured Charges; Sulfur, Heat and the Curing Press; Cooling, Trimming and Cutting Individual Blocks; Measuring Hardness and Watching a Mark Lift; Plastic, Kneaded and More Abrasive Alternatives; Sleeves, Product Marks and the Packed Box; A Small Correction and a Place Beside the Pencil.Boring Science For Sleep offers warm narration and gentle atmosphere for bedtime listening. Listen closely or let the details drift past. You are welcome to leave a bedtime hello or suggest a subject for another night.