4UAD SmartAirsoft High Viscosity Airtight Sealant Pen

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The 4UAD SmartAirsoft High Viscosity Airtight Sealant Pen. Your guns will be tougher and perform with greater power, which is a must for the airsoft enthusiast who wants to make sure his gun has an optimal air seal for the best possible performance on the field.

Manufactured by 4UAD SmartAirsoft, one of the world's leading companies in airsoft maintenance solutions, this silicone-based formula offers quality sealing. This can be fairly and effectively used inside every part of your airsoft gun: the gearbox, hop-up unit, and piston heads, preventing leaks that would otherwise reduce power and efficiency.

The high viscosity of the sealant ensures that it stays where you put it, providing a long-lasting seal without all the mess that comes with other, less effective solutions. The pen-style applicator will guarantee controlled and precise application, hence being able to reach even the smallest areas without wastage. This tool works to be specifically useful for intricate airsoft gun mechanisms that require a steady hand and precision.

Each package comes with a single sealant pen that is versatile for multiple uses in your regular maintenance routines. The silicone formula seals up everything, protecting it from moisture and debris, so it results in a longer life for parts, hence increasing reliability.

The 4UAD SmartAirsoft High Viscosity Airtight Sealant Pen is really a must-have for any maintenance kit, whether of competitive shooters or weekend enthusiasts. Keep your airsoft guns in top condition, making sure they are ready for action with this effective sealant solution, available now at Airsoft Station for those serious players preparing for success.


  • Ideal for the repair and prevention of leaks in o-rings and gaskets.
  • It is a non-corrosive formula, safe on plastic and rubber parts.
  • This seeps and fills in all the uneven spaces and gaps to make a tight seal.
  • Rubber parts last longer with the help of silicone
  • Good adhesion that provides improved integrity to the seal Convenient twist pen design for easy, mess-free application
Package Includes:
1x Sealant Pen
4UAD SmartAirsoft
30 Day Return & Warranty

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