Silicone Plugs

Silicone Masking Plugs

High-temperature silicone plugs for masking threaded and unthreaded holes in powder coating, anodizing, and plating operations.

Why Choose Silicone Masking Plugs?

Cost-effective, reusable masking solutions for industrial finishing

Tapered Silicone Plugs

Universal fit design for unthreaded holes. Tapered geometry provides secure sealing across a range of hole diameters. Most popular plug style for general masking applications.

Tapered Silicone Plugs with Handles

Same tapered design with integrated pull handle for easier insertion and removal. Ideal for high-volume production where operator efficiency matters.

Hollow Tapered Silicone Plugs

Hollow center design allows for masking over protruding studs or pins. Tapered outer profile seals hole while accommodating central protrusion.

Silicone Pull Plugs

Extended grip tabs for easy insertion and removal by hand or with tools. Perfect for high-volume production environments. Suitable for both threaded and unthreaded holes.

Silicone Dual Flanged Pull Plugs

Features two flanges - one for seating and one for gripping. Provides positive location and easy removal. Prevents push-through in through-holes.

Silicone Washer Pull Plugs

Combines washer-style flange with pull tab. Large flange prevents plug from falling into hole while pull tab enables quick removal.

Threaded Silicone Plugs

Precision-molded threads provide secure engagement in threaded holes. Available in metric and imperial thread sizes. Prevents coating ingress into threads.

Silicone Thread Plugs

Alternative thread plug design with different sealing geometry. Optimized for specific thread forms and coating processes.

Flangeless Silicone Plugs

Simple cylindrical design without flange. Ideal for blind holes where plug sits flush or slightly recessed. Easy to insert, cost-effective solution.

Silicone Washer Plugs

Large washer-style flange provides positive seating on surface. Prevents plug migration during coating process. Excellent for through-holes.

Silicone Mousetail Plugs

Features thin flexible tail for easy removal. Tail remains outside hole for quick access. Popular in automotive and high-volume production.

Square Silicone Plugs

Square cross-section design for square or rectangular holes. Prevents rotation during handling. Used in structural tubing and fabricated assemblies.

Silicone Caps/Plugs with Flanges

Hybrid design functions as both cap and plug. Flange provides seating while body seals hole or covers stud. Versatile solution for various geometries.

Industrial Applications

Masking threaded holes in automotive and machinery components during powder coating
Protecting precision threads in aerospace parts during anodizing
Sealing unthreaded holes and bores in electroplating operations
Masking hydraulic and pneumatic ports during surface treatment
Protecting bearing surfaces and critical dimensions during finishing processes

Need Custom Sizes or Configurations?

We manufacture custom silicone plugs to your exact specifications. Provide your hole dimensions and application requirements for a tailored solution.