Wallace Instruments began as general engineers in 1901 working for local Croydon companies and successfully developed a range of machines for the confectionery and food canning industries.
In the late 1930s Wallace became involved in joint development programmes with the Rubber and Plastics Research Association and undertook the design, manufacture and sales of test equipment to evaluate the physical properties of rubber and other polymeric materials.
In the early 1950 Wallace began looking for export markets for its test equipment particularly in the rubber growing regions and in industrialised countries where rubber processing takes place....
The Wallace Ageing Chamber, O14 ages rubber in accordance with international testing standards. In conjunction with the Rapid Plastimeter, it allows the user to determine the Plasticity Retention Index (PRI) of raw natural rubbers.View more
Rapid plasticity is one of the basic tests used in the natural rubber industry, and is the measurement of compression of a specimen of known thickness at a known temperature under a predetermined load for a known time.View more
The Mk III Mooney Viscometer (formally Negretti) measures and records the viscosity of natural, synthetic or compounded rubber. Conforming to international standards, the Mk III is a shearing-disc viscometer in which the rubber sample is compressed pneumatically in a cylindrical chamber formed by cavities in 2 opposing dies.View more
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