Custom Silicone Compounding and Molding
with PEEK, PTFE, and Carbon
By compounding silicone with ground PEEK, PTFE, and carbon, we make materials that perform in environments where standard silicone fails. We manufacture custom silicone parts from design to finished product.
Material Engineering
Silicone (Base)
Provides elasticity, sealing memory, and thermal stability up to ~200–250 °C. It has low wear resistance and high creep without reinforcement.
PTFE Filler
Acts as an internal lubricant to reduce friction, prevent sticking, and minimize wear. Forms a transfer film on mating surfaces.
PEEK Filler
Increases compressive strength, stiffness, and creep resistance. Extends service temperature and maintains dimensional stability under load.
Carbon Filler
Boosts tensile and tear strength and wear life. Provides thermal stability and can be used for electrical conductivity, such as static dissipation.
Process Details
- Compression Molding: for bulk components, reinforced composites, and high-precision parts.
- Overmolding: silicone bonded over metals, plastics, or other silicone parts.
- Tooling: steel for production and prototypes. Aluminum is available, but it does not cut cost or time, so we default to steel.
- Tolerance: ±0.2 mm standard, tighter after review.
Testing & Verification
We validate compounded silicone through the tests engineers typically require:
- Hardness (Shore A/D)
- Compression Set
- Friction & Wear Testing
- Chemical Exposure (oils, fuels, solvents)
- Tensile & Tear Strength
- Creep & Stress Relaxation
- Thermal Cycling
Applications
- Seals
- Bearings & Bushings
- Dampening
- Conductive Parts
- Industrial: Aerospace, Automotive, Oil & Gas, Electronics (Non-Medical)
Our Approach
Start from a Sketch, CAD, or Idea
We begin development from any stage of your concept.
No Minimum Order Quantity (MOQ)
We support your project from a single prototype through full production.
In-House Confidentiality
All compounding and molding is performed in-house to protect your design.
Reinforced Silicone Extrusion: Long Hose and Copper-Cored Cable
The same PEEK, PTFE, and carbon reinforcement also runs on our silicone extrusion line, as reinforced silicone tubing. Two configurations we have produced:
- Long hose. A reinforced silicone hose extruded to length, for a flexible, wear-resistant, non-stick conduit.
- Copper-cored cable. The same reinforced silicone extruded directly over a stranded copper core: 5N bare single-crystal (OCC) copper wire, 0.25 mm diameter, 51 strands.
The copper-cored version went to a music-industry customer. 5N single-crystal copper is 99.999% pure Ohno Continuous Casting copper, cast as one continuous crystal with no grain boundaries, the conductor grade used in high-end audio cable. The PEEK and PTFE fillers give the jacket its wear resistance and non-stick surface, and carbon can be loaded for static dissipation where the application calls for it.
The compounding is the same family as our compression-molded reinforced parts, run on the extrusion line instead.
Industrial & Technical Parts
- Industrial Silicone Parts
- Industrial Silicone Enclosures for Harsh Environments
- Silicone Industrial Equipment Manufactured for Various Industries
- Manufacturing Metal-Bonded Silicone Diaphragms
- Custom Large Rubber Flanges (2100×1200×750mm)
- Silicone Grommets: Reliable Solutions for Every Application
- Custom Silicone Solutions for Marine Applications