Audited Supplier
| Physical Properties | |
| Sulfurization Time | 170ºC×10min |
| Specific Gravity | 1.17~1.21 |
| Hardness | 81(80±5) |
| Tensile Strength TB(MPa) | ≥105 |
| Tear-off elongation EB(%) | 250 |
| Mooney ML(1+4) 100ºC | 65-85 |
| Heat aging test | 125ºC×72hrs |
| Rate of change in tensile strength ΔTB(%) | +7 |
| Tear off elongation change rate ΔEB(%) | -46 |
| Hardness change ΔHS | +4 |
| Compression set CS 100ºC×22hrs(%) | 50 |
What is a rubber compound?
Rubber compounding is the science of mixing a specific rubber formulation, including rubber and additives, before beginning the vulcanization, or curing, process. Basically, it's all the work that goes into mixing up just the right recipe for your application.
Rubber compounds often include:
- A base elastomer
- Fillers (natural or synthetic minerals, activators, and colors)
- Plasticizers (oils, liquids, esters, ethers)
- Antioxidants
- Cross-linking agents and accelerators
- Polymer resins
- Processing agents like soaps and waxes
- And other components for bonding, heat resistance, and more
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Q1: Can the products be customized?
- For sure, we can offer professional suggestions and customize as per clients' requests.
Q2: How about the payment terms?
- Generally speaking, we support T/T transfer and L/C at sight.
Q3: What is your terms of delivery?
-EXW, FOB, CFR, CIF, DDU, etc.
Q4: What is your sample policy?
- We can supply the free sample if we have ready parts in stock.
Q5: Can you produce according to the samples?
-Yes, we can produce by your physical samples or technical product data sheet.
Q6: Is rubber compounding safe?
-Yes! Especially over the last 30 or so years, industry regulations have drastically reduced and nearly eliminated the use of identified carcinogens or harmful chemicals. Many chemicals that were once common in rubber compounding are banned today.
Additionally, modern mixing and laboratory testing equipment used in compounding have safety features that weren't present decades ago. It's a very safe job overall.
Q7: Is natural rubber compounding different from synthetic?
- Fundamentally, yes, formulating natural rubber will differ from synthetic rubber. Natural rubber is made from latex and occurs naturally in rubber trees while synthetic rubbers are artificially created from a petroleum base.
The type of rubber you start with prior to including additives will depend on your intended application.
