6mm - Cap female - REDOX

High-Performance 6mm Silicone Female Plug for Sealing Applications

This6mm silicone female plugin black finish represents the professional solution for temporarily or permanently sealing cooling circuits, turbo boost systems, and applications requiring reliable liquid and air sealing. Manufactured by REDOX using premium VMQ silicone with integrated polyester reinforcement, this plug ensures perfect sealing and optimal mechanical performance.

Professional Technical Specifications

Manufactured fromhigh-quality VMQ siliconewith 3-ply integrated polyester reinforcement, this plug guarantees perfect sealing and optimal mechanical strength. Its multi-layer construction provides exceptional resistance to deformation even under pressure.

• Internal Diameter:6mm (¬±0.5mm)
• Length:30mm
• Wall Thickness:4mm
• Material:VMQ Silicone with 3-ply polyester reinforcement
• Temperature Resistance:-50¬?C to +180¬?C continuous operation
• Burst Pressure:29.5 kg/cm¬? (~29 bar)
• Recommended Service Pressure:8 bar maximum
• Sealing:Water and air (not compatible with hydrocarbons)
• Color:Black
• Type:Female plug (internal seal)

Multiple Automotive and Industrial Applications

This 6mm female plug is perfectly suited fortemporarily sealing circuitsduring engine maintenance,plugging unused outletson intake or cooling manifolds, andprotecting conduitsduring storage or transport of spare parts.

Ideal forcooling and intake circuit leak testing,protection against dust and dirtduring engine disassembly, andpermanently sealing unused outletsafter technical modifications. Compatible with passenger vehicles, commercial vehicles, motorcycles, agricultural machinery, and industrial equipment.

Permanent Stock Availability & Express Delivery

Immediate availability from our European warehouse:all orders placed before 5:00 PM are shipped the same day. Our trusted carrier partners ensure delivery within24-48 hours in France, 48 hours in European countries, and 72 hours for destinations outside Europe.

No more extended downtime: with REDOX, you benefit from apermanent stock of over 15,000 referencesimmediately available. Every order is carefully prepared and includes complete tracking until receipt.

Key Technical Advantages

The VMQ silicone used offersexcellent resistance to glycol-based coolants, engine oil vapors, and severe automotive operating conditions. Its stable molecular structure perfectly resists repeated thermal cycles and aging.

The 3-ply crisscrossed polyester reinforcement ensures uniform resistance to deformation and maintains the plug's shape even under stress. This multi-layer construction guarantees durable sealing without sagging or dimensional shrinkage.

The female design (internal seal) allows easy insertion into hoses and conduits, with retention through friction on the inner wall. The 30mm length ensures proper positioning while the 4mm thickness guarantees optimal sealing.

Pressure & Fluid Compatibility

Pressure resistance:With a burst pressure of 29.5 kg/cm¬? (approximately 29 bar), this plug easily withstands standard automotive circuit stresses. The recommended service pressure is approximately 8 bar maximum to ensure optimal safety and maximum service life. This high resistance allows safe leak testing.

Fluid compatibility:This plug perfectly resists water, glycol-based coolants, compressed air, and oil or gasoline vapors.Warning:It isnot compatible with permanent contact with hydrocarbons(gasoline, diesel, engine oil), which would require a plug with FVMQ fluorosilicone coating.

Frequently Asked Questions

How do I properly install this 6mm female plug?

Clean and dry the inside of the hose or conduit. Slightly compress the plug to facilitate insertion, then push it firmly 20-25mm deep. The plug maintains itself through natural friction on the inner wall. For reinforced sealing during pressure testing, you can add an external hose clamp.

Can this 6mm plug be reused multiple times?

Yes, absolutely. VMQ silicone retains its elasticity and sealing capacity even after multiple insertions and removals. Simply clean the plug between each use. Service life in normal use far exceeds that of conventional rubber plugs which harden and crack over time.

What maximum pressure can this plug withstand?

The burst pressure of this 6mm plug is 29.5 kg/cm¬? (approximately 29 bar according to REDOX technical specifications). In normal use with complete insertion (20-25mm), the recommended service pressure is approximately 8 bar maximum to guarantee optimal safety and long service life. For higher pressure testing, reinforce with an external hose clamp.

Can I use this plug to seal a fuel circuit?

No, this standard VMQ silicone plug is not compatible with permanent contact with hydrocarbons (gasoline, diesel, engine oil). For these applications, consult our range of plugs with FVMQ (fluorosilicone) inner coating specifically designed to resist fuels and oils.

Is this plug suitable for cooling circuit leak testing?

Perfectly suited. This 6mm plug effectively seals circuit outlets during liquid or compressed air leak testing. With its burst pressure of 29 bar, it easily supports typical cooling circuit test pressures (generally 1-2 bar), providing a large safety margin.

How do I easily remove the plug after use?

Firmly grasp the outer end of the plug and pull with a slight rotating motion. If the plug resists, you can use slip-joint pliers, taking care not to damage the hose. Avoid using cutting tools that could damage the silicone.

Is there a performance difference between colors?

No, mechanical and thermal properties are strictly identical regardless of color (Blue, Black, or Red). Only the coloring pigment differs. Color choice is purely aesthetic or can serve as a color code for identification in your installations.

Does this plug resist extreme engine compartment temperatures?

Yes, with its resistance from -50¬?C to +180¬?C continuous, this plug perfectly withstands engine compartment thermal conditions. It retains its elasticity and sealing even when exposed to engine radiant heat or freeze/thaw cycles in winter.