Laboratory Capabilities

Modulus of Rupture

R&R maintains the largest, most advanced product application and development laboratory, research foundry and technical staff for benefit of the industry.


With unique testing equipment, we are the only industry supplier able to look at shell strength and flexibility properties in real-time and at temperature.


These resources are used to develop new products, analyze material performance and service customer needs.

Shell Strength Measurement
  • Room temperature up to 2192°F (1200°C)

    • Modulus of Rupture (MOR)

    • Adjusted Fracture Load (AFL)

    • Stress-strain analysis

    • Deflection


Investment Strength Measurement
  • Green compressive strength

  • Post fired compressive strength


​Shell Permeability
  • Hot (up to 1832°F [1000°C])

  • Green permeability (room temperature)​​


​Investment Permeability
  • Gas permeameter


Shell & Investment
  • Thermal Expansion Dilatometry

  • Simultaneous Thermal Analysis (STA) up to 2912°F (1600°C)

    • Thermogravimetric Analysis (TGA)

    • Differential Scanning Calorimetry (DSC)

R&R is a Proud Member of
ICI Digital Logo.jpg

Corporate Office

3535 Briarfield Boulevard
PO Box 1570 
Maumee, Ohio 43537 USA
US Toll Free: 800.253.4502
US Phone: 419.865.9497
US Fax: 419.865.9997


Contact Us

R&R Terms & Conditions

© 2019 by Ransom & Randolph