Formed-in-Place Gaskets (FIPG) offer superior performance and cost efficiency, but successful implementation requires precision and expertise. Understanding potential problems is the first step toward achieving consistent, high-quality sealing results.
Common FIPG Problems and Root Causes
| Problem | Impact | Root Causes |
| Poor Adhesion / Delamination | Leaks, product failure, costly rework. | Inadequate Surface Prep: Oils, grease, or mold release agents contaminate the surface. Material Incompatibility: FIPG material is chemically wrong for the substrate. Improper Curing: Insufficient cure time/energy. |
| Incomplete Curing or Soft Spots | Leaks, poor compression set, reduced durability. | Insufficient Cure Energy: Not enough UV light, heat, or moisture (for RTV). Shadowing (UV-cure): Light blocked by part geometry. Mixing Issues:Incorrect ratio in two-part systems. |
| Dispensing Inconsistencies(Voids, Uneven Bead) | Leak paths, poor aesthetics, excessive material use. | Improper Calibration: Worn nozzle, incorrect pressure/speed settings. Air Bubbles: Entrapped air in the material reservoir. Viscosity Change:Temperature fluctuations altering material flow. |
| Compression Set Issues | Gradual seal degradation, eventual leakage. | Incorrect Material: Choosing a material with poor compression set resistance. Over-compression: Applying too much clamping force during assembly. |
| Material Bleed-Out or Migration | Contamination of sensitive components, aesthetic defects. | Low Viscosity: Material is too thin for the application or dispensing speed. Incorrect Parameters: Too much dispensing pressure or too large a nozzle opening. |
How Incure Solves FIPG Problems and Ensures Success
Incure provides a holistic solution by offering advanced materials and deep technical expertise to proactively prevent and address these issues:
1. Expert Material Selection and Customization
- Incure Solution: We meticulously analyze your application (temperature, chemical exposure, required flexibility) and recommend the ideal FIPG silicone, urethane, or acrylic formulation.
- Practical Insight: For harsh environments, we recommend specific chemical-resistant FIPGs (e.g., fluorosilicone-based) to prevent material degradation and leaks, addressing the root cause of compression set issues.
2. Rigorous Surface Preparation Guidance
- Incure Solution: We provide consultation on optimal cleaning agents and primers to ensure the substrate is perfectly receptive to the FIPG material, guaranteeing robust adhesion.
- Actionable Advice: Conduct adhesion tests on actual parts before production to validate your cleaning and FIPG process.
3. Dispensing & Curing Process Optimization
- Incure Solution: Our team offers invaluable insights into fine-tuning your dispensing parameters (pressure, nozzle, speed) and curing profiles (time, temperature, UV intensity).
- Example: For high-speed lines, we recommend rapid UV-curable FIPG with precisely calibrated UV systems to achieve a quick, consistent, and full cure, preventing soft spots and maximizing throughput.
4. Design for Manufacturability (DFM) Collaboration
- Incure Solution: We collaborate early in the design cycle to advise on optimal bead path design, flange rigidity, and proper gap control.
- Benefit: By addressing FIPG requirements during the design phase, potential problems like bleed-out or insufficient curing in shadowed areas are prevented before production.
Partner with Incure to ensure your FIPG processes run smoothly, minimizing downtime and maximizing output.