Plan a trial for your application
Heat aging of tires and belts
Fix the rubber and cure conditions. Compare tensile strength and elongation retention before and after thermal aging.
Cable rubber protection
Heat-age the actual jacket compound. Record color change, blooming and dispersion during processing.
Purchase specifications and incoming inspection
Include the intended grade or current specification in the enquiry. Use the table to compare selection criteria and inspection conditions. The specification agreed by both parties defines the contractual limits. ENVO · Rubber Antioxidant TMQ (RD) catalogue and specifications ↗
| Property | Unit | Published or agreed specification | Test conditions and checks |
|---|---|---|---|
| Ethanol-insoluble matter | % by mass | ENVO published catalogue ≤0.20 | Agree solvent, sample treatment and filtration method when ordering. |
| Loss on heating | % by mass | ENVO published specification ≤0.30 | State the test conditions and use a sample that has not absorbed moisture. |
| Ash | % by mass | ENVO published specification ≤0.45 | Check using the agreed ignition conditions. |
When approving a sample, record the grade, methods, limits and specification revision. On receipt, match the packing lot number to the lot-specific COA and record the measured values and release decision.
From samples to commercial delivery
Packaging and receiving
Check the form supplied and protect the granules from compaction and breakage in storage and transport.
Storage and handling
Request the softening range and polymer composition. Keep heat-ageing controls for the trial and commercial lots.
Sample and order lead times
State the finished part, machine trial quantity and routine order size. Match trial and commercial grades and agree MOQ, load unit, lead-time start and arrival.
Questions from the plant
Why do nominally equivalent grades retain different properties after heat ageing?
Compare dispersion during processing and heat-ageing retention after curing the same compound.
Why do similar-looking TMQ grades age differently?
Check how dimers, trimers and tetramers were measured. Run parallel heat-ageing trials on the same rubber.
Report a delivery or batch issue
Include the order number, lot number from the package, label photos and inspection records for the affected lot. When retesting, check active polymer fraction, softening point, Volatiles.
Request documents for your application
TDS · Technical data sheet
For grade selection and sample approval, specify the grade and revision required.
SDS · Safety data sheet
Specify the country or region of use and the required language.
COA · Certificate of analysis
Request a sample COA during supplier review. For incoming inspection, provide the actual lot number.