High Temp Silicone Pull Plugs (Pull-Through Masking) – Up to 315°C

Description

Product Overview

Our Silicone Pull Plugs (also known as Pull-Through Plugs) are the most efficient solution for masking through-holes during Powder Coating, E-Coating, Anodizing, and Plating.

Unlike standard tapered plugs, the unique “pull-tab” design allows you to stretch the plug to reduce its diameter, pull it through the hole, and release it to create a perfect seal. This is especially useful for masking the first thread or the chamfer of a hole, ensuring the surrounding area is fully coated while the threads remain clean.

Key Features & Benefits

• 🔥 Extreme Heat Resistance: Withstands curing temperatures up to 315°C (600°F) without melting or hardening.

• 🚀 Fast Application: The long tail makes it easy to insert and pull through, speeding up your production line.

• 💪 Strong Seal: The elasticity of the silicone ensures a tight friction fit, preventing paint or powder from entering the threads.

• ♻️ Reusable: Paint build-up peels off easily. The plugs can be reused multiple times.

• 🎨 Color Coded: Each size comes in a specific color for easy identification in your workshop.

Technical Specifications

• Material: 100% Virgin Silicone Rubber

• Hardness: 55 Shore A (Standard)

• Temp Range: -40°F to 600°F (-40°C to 315°C)

• Chemical Resistance: Excellent (Acids, Alkalis)

Standard Size Chart

Note: We have hundreds of molds. If you don’t see your size, please contact us for a custom quote.

How to Use Silicone Pull Plugs?

1. Insert: Push the thin end (the tail) into the hole.

2. Pull: Grab the tail from the other side and pull until the plug seats firmly. The tension will thin the plug out, allowing it to pass through.

3. Release: Let go of the tail. The plug will expand back to its original shape, sealing the hole tightly.

4. Coat & Cure: Proceed with powder coating or plating.

5. Remove: After curing, simply pull the plug out by the handle or push it back through.

Industry Applications

• Powder Coating: Masking grounding points and threaded through-holes.

• E-Coating: Creating a liquid-tight seal in sub-assemblies.

• Anodizing: Protecting precision bores from chemical etching.

Why Buy from Leader Masking?

• Direct Factory Price: Save 15-20% on sourcing costs.

• Huge Inventory: Ready to ship within 24 hours.

• Custom Molding: We can customize the length and diameter to fit your specific parts.

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