Rubber Compounds
We produce high-quality compounded rubber — the essential raw material for manufacturing any technical article. Our formulations are precisely tailored to each client's technical requirements: hardness, chemical resistance, thermal range and electrical properties.
Types of Compounds Produced
Every formula is compounded and validated in our in-house laboratory, guaranteeing parameter repeatability batch after batch.
Electroinsulating
Compounds with high electrical resistivity, used for insulating components in high-voltage installations and railway applications.
- Resistivity: > 10¹² Ω·cm
- Hardness: 50–75 Shore A
- Base: SBR / special NR
Oil-Resistant NBR
NBR formulations with excellent resistance to mineral oils, fuels, greases and aliphatic solvents.
- Temperature: -40°C / +120°C
- Hardness: 40–90 Shore A
- Base: NBR (nitrile rubber)
Extreme Temperature (EPDM)
EPDM compounds for applications with severe thermal variations, ozone, UV and weathering exposure.
- Temperature: -50°C / +150°C
- Hardness: 40–80 Shore A
- Base: EPDM
Silicone
Pure silicone compounds with superior properties: chemically inert, biocompatible, stable at extreme temperatures and ageing-resistant.
- Temperature: -60°C / +230°C
- Hardness: 20–80 Shore A
- Base: VMQ / PVMQ
Technical Specifications
Values are indicative. Exact parameters are established via formulations validated in Geola Prod's in-house laboratory.
| Parameter | Electroinsulating | NBR (Oil) | EPDM | Silicone |
|---|---|---|---|---|
| Min. temperature | -30°C | -40°C | -50°C | -60°C |
| Max. temperature | +100°C | +120°C | +150°C | +230°C |
| Hardness Shore A | 50–75 | 40–90 | 40–80 | 20–80 |
| Tensile strength | ≥ 9 MPa | ≥ 10 MPa | ≥ 8 MPa | ≥ 5 MPa |
| Elongation at break | ≥ 200% | ≥ 250% | ≥ 300% | ≥ 150% |
| Electrical resistivity | > 10¹² Ω·cm | Low | Moderate | Moderate |
| Oil resistance | Moderate | Excellent | Poor | Moderate |
Our Production Process
Formula Development
We select the base polymer and additives according to the client's technical requirements.
Mixing
The compound is prepared in controlled mixers for maximum homogeneity.
Laboratory Testing
Every batch is tested in-house: hardness, tensile strength, elongation, resistivity.
Certified Delivery
Each batch is delivered with a declaration of conformity and analysis report.
Frequently Asked Questions
What types of rubber compounds do you produce?
NBR, EPDM, SBR, silicone and electroinsulating compounds, blended in-house in our own mixer according to approved formulations.
Can compounds be customised for a specific hardness?
Yes, hardness (Shore A) and mechanical properties are adjusted according to the technical specifications provided by the client.
What is the minimum order quantity?
We handle both small test batches and large industrial quantities, depending on the client's needs.
What information do you need for a compound quote?
The temperature range, working environment (oil, chemicals, ozone) and desired hardness; based on these we recommend the optimum formulation.
Request a Quote for Rubber Compounds
Specify the application type, temperature range and desired hardness — we will formulate the optimum recipe for you.