Will your rubber seal hold pressure, survive heat, and last in service? Rubber and elastomers fail in ways metals and plastics don’t — they harden, crack, take a set, and lose elasticity with age. A dependable rubber testing laboratory in chennai measures all of it, so you can prove compound quality, meet specifications, and prevent field failures. Kiyo R&D Lab tests the strength, hardness, tear, ageing, and set of your rubber with confidence.
From vulcanized rubber and thermoplastic elastomers to seals, O-rings, gaskets, and moulded parts, our expert team delivers accurate test data, supporting analysis, and clear, audit-ready reports you can rely on.

Your complete guide to rubber testing at Kiyo R&D Lab
Rubber is chosen for its ability to stretch, seal, and spring back — but those very properties change with temperature, time, and chemical exposure. A compound that performs on day one can harden or crack after months in service. That is why a proper rubber testing laboratory in chennai measures not just strength, but hardness, tear resistance, elasticity, and how all of these hold up after ageing.
For manufacturers, testing confirms a batch meets specification. For designers, it guides compound selection for seals and flexible parts. For QC and failure work, it catches weak or over-aged material before it reaches the customer.
As a full-service rubber testing laboratory in chennai, we run the complete range of physical and ageing tests that specifications call for.
Strength & stretch (D412).
Shore A / IRHD durometer.
Resistance to tearing.
Recovery after squeeze.
Property change with age.
Specific gravity, TGA.
| Test | Standard | What It Proves |
|---|---|---|
| Tensile & elongation | ASTM D412 / ISO 37 | Strength & stretch |
| Hardness | ASTM D2240 / ISO 48 | Firmness of compound |
| Tear strength | ASTM D624 / ISO 34 | Resistance to tearing |
| Compression set | ASTM D395 / ISO 815 | Sealing recovery |
| Heat ageing | ASTM D573 / ISO 188 | Durability over time |
Our rubber testing laboratory in chennai follows globally recognised methods so your reports are accepted by auditors, buyers, and regulators alike.
ASTM ISO
| Standard | Property | Body |
|---|---|---|
| ASTM D412 | Tensile & elongation | ASTM |
| ASTM D2240 | Hardness (durometer) | ASTM |
| ASTM D624 | Tear strength | ASTM |
| ASTM D395 | Compression set | ASTM |
| ISO 37 / 48 / 34 | Tensile / hardness / tear | ISO |
Need composition too? We pair physical tests with TGA and FTIR to break down filler content and identify the base polymer — ask for a full rubber profile.
Based in Chennai with branches in Chrompet and Oragadam, Kiyo R&D Lab makes professional rubber testing easy to access for the Chennai–Oragadam industrial corridor, with convenient drop-off and courier-friendly collection.
Looking for a rubber testing laboratory in chennai? Our facilities cover tensile, hardness, tear, compression set, and ageing with clear, accurate reporting.
Call 90420 86986 Request a QuoteExplore all our capabilities at www.kiyorndlab.com.

When sealing, durability, and compound quality are on the line, trust a lab that delivers clear answers. As a leading rubber testing laboratory in chennai, we combine correct specimen preparation, recognised ASTM and ISO methods, and expert interpretation to give you data you can stand behind.
From a single hardness check to a full rubber-property package, the team at Kiyo R&D Lab is ready to help. Reach out today and turn your sample into a reliable, audit-ready report.