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High-performance silicone elastomer blend offering excellent thermal stability up to 200 °C short-term exposure.
Outstanding flexibility and low compression set for durable sealing and cushioning performance.
Good adhesion to common substrates including plastics, metals, and coated surfaces without primer.
Low volatility and minimal extractables—suitable for applications requiring low outgassing and high purity.
Ready-to-use formulation with balanced viscosity for efficient dispensing, extrusion, or molding processes.
Automotive gaskets and dynamic seals for under-hood components.
Consumer electronics interface materials and shock-absorbing pads.
Medical device cushioning and ergonomic grip elements (non-implantable).
Industrial appliance vibration-damping mounts and thermal interface pads.
LED lighting encapsulation and optical bonding layers requiring UV resistance.
| Chemical Type | Heat-curable addition-cure silicone elastomer blend |
| Product Form | Paste-like, two-component (Part A + Part B) |
| Appearance | Opaque off-white to light beige, homogeneous paste |
| Primary Applications | Sealing, cushioning, damping, and protective encapsulation |
| Key Features | Low compression set, high elasticity, thermal stability, primerless adhesion |
| Benefits | Reduced assembly steps, extended service life in cyclic loading, RoHS-compliant formulation |
| Curing System | Pt-catalyzed hydrosilylation (requires heat activation) |
| Storage Conditions | Store at 10–25 °C; protect from moisture and direct sunlight |
Q1: What is the primary function of DOWSIL FB-9586 in silicone elastomer formulations?
A: DOWSIL FB-9586 is a pre-dispersed silicone elastomer blend designed to enhance surface smoothness, reduce friction, and improve release performance in high-consistency rubber (HCR) and liquid silicone rubber (LSR) systems. It functions as a processing aid and surface modifier without significantly compromising mechanical integrity.
Q2: Is DOWSIL FB-9586 compatible with platinum-cured LSR systems?
A: Yes, DOWSIL FB-9586 is formulated for compatibility with platinum-catalyzed LSR systems. It does not contain known inhibitors that interfere with hydrosilylation cure chemistry when used at recommended dosage levels and under standard processing conditions.
Q3: How should DOWSIL FB-9586 be incorporated into silicone elastomer compounds?
A: It is typically added during the final mixing stage—after base polymer, filler, and crosslinker have been homogenized—to ensure uniform dispersion. Mechanical shear mixing (e.g., two-roll mill or internal mixer) is recommended; extended mixing times beyond standard practice are not required.
Q4: Does DOWSIL FB-9586 affect the thermal stability or compression set of cured elastomers?
A: When used within typical dosage ranges, DOWSIL FB-9586 maintains good thermal stability and does not adversely impact compression set performance. Its silicone-based composition remains inert under standard vulcanization conditions and contributes to consistent long-term sealing behavior.
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