Silicone rectangle caps are specialized, geometric masking covers made from a premium, flexible synthetic rubber compound. These durable caps are specifically engineered to slip snugly over flat bars, rectangular tubing, blades, and narrow geometric tabs to protect them from aggressive finishing treatments and physical damage. Silicone rectangle caps offer a contour-hugging, airtight seal and flexible elasticity, ensuring complete protection for non-standard hardware profiles across a wide range of industrial manufacturing applications.

High-temperature powder coating, e-coating, liquid spray painting, anodizing, plating, protective masking for electrical busbars, capping rectangular tube and structural steel ends, shipping protection for flat blades or tabs, and dust capping for rectangular connector ports.

Concentrated mineral acids, highly volatile organic solvents, silicone oil environments, high-pressure dynamic sealing, and permanent structural load-bearing applications.

Silicone Rectangle Caps Limitations

• Susceptible to piercing or tearing if forced over sharp, un-deburred metal corners or rough sheared edges.
• Prone to absorption and swelling when continuously exposed to specific fuel and aromatic hydrocarbon blends.
• Lower structural rigidity compared to molded vinyl, meaning walls may bulge if over-pressurized internally.
• Incapable of maintaining a pressure-tight seal on irregular profiles without exact dimensional matching.

-85 to 600°F (-65 to 315°C)

Silicone Rectangular Caps, Flat Masking Caps, Slot Caps, REC Series Caps, Busbar Protectors, High-Temp Ribbon Caps.