Investment Mixing Bowl — Flexible Black Rubber, 4" × 5", Lost-Wax Casting & Dental Lab

A flexible bowl for mixing investment ahead of a lost-wax pour. Because the rubber walls give under hand pressure, you can squeeze the sides to work trapped air out of the slurry before it goes anywhere near the flask — a denser mix, and crisper detail on the finished casting. The same qualities serve dental technicians preparing moulds for crowns, bridges and other prosthetics.

The interior is smooth, so cured investment releases cleanly and washing out takes moments, while the flat base keeps the bowl planted as you stir. The deep black colour gives useful contrast against pale investment powders when judging the mix. At 4" × 5", it holds sensible volumes for jewellery and dental casting alike.

• Flexible rubber walls allow you to squeeze the bowl to work out trapped air.
• Smooth interior surface ensures easy cleaning and complete removal of cured investment.
• Features a stable, flat base to prevent tipping during mixing.
• Standard 4" x 5" size is ideal for jewellery and dental casting volumes.
• Deep black colour provides high contrast against light-coloured investment powders.

Who it's for

Primarily for UK bench jewellers and casters using the lost-wax method for precious metals. Also widely used by dental-lab technicians preparing moulds for crowns, bridges, and other prosthetics.

Specifications

• Material: Rubber
• Colour: Black
• Dimensions: 4" x 5" (approx. 101mm x 127mm)

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