Rheology Testing Lab
- Method-specific temperatures, shear rates, frequencies, strains, and loads
- Method-appropriate dies, cone-and-plate or parallel-plate geometries, fixtures, and specimen forms
- Dynamic, steady-shear, relaxation, extensional, and cure-monitoring programs
- Single-condition screening or comparative multi-condition rheology programs
- Engineering test report (PDF) with digital data delivery
- Method-appropriate outputs such as viscosity curves, G′ and G″, complex viscosity, MFR or MVR values, die swell, extensional viscosity, melt stability, and cure or relaxation data
- Raw data exports available on request, where applicable
- Exact deliverables depend on the selected method family, specimen configuration, and test conditions
Get Started
Tell us about the material, application, environment, and any method, standard, specimen, or conditioning constraints.
We’ll align the appropriate method, specimen requirements, and deliverables to your objectives, then provide a quote and test plan.
Send the purchase order and arrange delivery of materials or specimens so the program can move into scheduling and execution.
You’ll receive an engineering test report with digital data delivery, along with any agreed raw data or method-appropriate outputs.
FAQs
Describe the material, processing context, temperature range, flow regime, and outputs you need back. We’ll recommend the most appropriate rheology test family and method path.
This page functions as a commercial entry point for rheology testing. It helps visitors start the discussion, while the Test Methods section below presents individual rheology method categories.
Rheology testing spans plastics and other polymers, filled systems, adhesives, coatings, soft solids, and thermoplastics for MFR testing. Suitability depends on the method, specimen form, temperature range, and deformation regime.
Yes—where applicable, programs can incorporate elevated temperatures, multiple shear-rate or frequency conditions, extensional or steady-shear measurements, and cure or relaxation studies.
They are presented in the Test Methods section of this page under each rheology method category. Click through on the test method of interest for the applicable methods and standards.
You receive an engineering test report (PDF) and digital data deliverables. Exact outputs vary by the selected method and may include viscosity curves, viscoelastic moduli, MFR/MVR values, die swell, extensional viscosity, melt stability, cure data, or relaxation response.
Typical turnaround is five business days for standard testing. Turnaround can vary based on the selected method, temperature program, number of conditions, run length, and test volume.
Tell us what you need back—property values, curves, temperature range, shear/frequency regime, raw data, formats, and any required method or standard. We’ll confirm the appropriate test path and deliverables in the quote before testing begins.
Rheology testing of materials is essential for understanding how materials flow and deform under applied stress or strain, particularly during processing and end-use conditions. This category of testing is especially critical for polymers in the melt state. Rheological tests provide insights into key properties such as viscosity, elasticity, flow stability, and relaxation behavior, enabling engineers and materials scientists to predict and control material performance during manufacturing processes such as extrusion, injection molding, and curing.
Whether through capillary rheometry to simulate high-shear processing, rotational rheometry to analyze viscoelastic behavior, or melt flow rate testing for rapid quality assessment, these methods are indispensable for material development, process optimization, and product consistency across industries including plastics, coatings, adhesives, biomedical materials, and food products.
The sections below group this testing category into method families, with links to related testing services, key applications, standards context, specimen considerations, test conditions, and measurement details.
Capillary Rheology
Capillary Rheology / Capillary Rheometry is a key technique for characterizing the flow behavior of polymer melts and other high-viscosity materials under shear and extensional conditions. This technique simulates real-world polymer processing conditions, such as extrusion and injection molding, by forcing a material through a capillary die and measuring the pressure, flow rate, and resulting rheological properties. By providing insights into viscosity, elasticity, flow stability, and die swell, it is indispensable for material development, process optimization, and quality control in industries such as plastics, coatings, and advanced manufacturing. Adhering to ASTM D3835 and ISO 11443 standards ensures reproducible and accurate results for a broad range of applications across various industries.
Learn more about Capillary Rheology / Capillary Rheometry Testing.
Rotational Rheology
Rotational Rheology / Rotational Rheometry Testing by Dynamic Mechanical Analysis (DMA) is a versatile technique for characterizing the viscoelastic properties of materials over a range of shear rates, temperatures, frequencies, and deformation conditions. By using a dynamic mechanical analyzer equipped with cone-and-plate or parallel plate geometries, this technique can provide detailed insights into elasticity (storage modulus), viscosity (loss modulus), transition temperatures, relaxation behavior, cure kinetics, and equibiaxial elongational viscosity of complex materials such as polymers and gels. Such testing, following standards such as ASTM D4440, ISO 6721-10, and ASTM D4473, enables optimized material design and processing across diverse industries, including polymers, adhesives, composites, and food products.
Learn more about Rotational Rheology / Rotational Rheometry Testing.
Melt Flow Rate (MFR)
Melt Flow Rate (MFR) Testing measures the flowability of molten thermoplastic materials under standardized conditions of temperature and load. The MFR value provides insights into molecular weight, processability, and consistency of polymer batches. Although it is not a fundamental material property, it serves as a practical comparative tool for evaluating materials used in processes like injection molding, extrusion, and blow molding. Following ASTM D1238 and ISO 1133 standards, such testing supports efficient material selection, process optimization, and quality control across plastics processing industries.
Learn more about Melt Flow Rate (MFR) Testing.
