DSPIAE BP-SP Plastic Ball Joint Strengthening Pen

DSPIAE BP-SP Plastic Ball Joint Strengthening Pen is a specialised maintenance tool designed to restore friction and improve the holding strength of loose ball joints and moving parts on Gunpla, scale models, figures, and articulated model kits.

Over time, repeated posing and assembly can cause ball joints, polycaps, and friction-fit connections to loosen, resulting in parts that sag or struggle to hold dynamic poses. The BP-SP solves this problem by applying a durable transparent coating that increases friction and damping, helping restore tight, smooth movement without permanently bonding the joint.

Designed for ease of use, the pen-style applicator allows builders to apply a controlled amount of strengthening solution directly onto the joint surface. Once dry, the coating remains transparent and durable, helping models maintain their articulation while significantly improving stability and poseability.

Key Features:

• Specialised solution for tightening loose plastic ball joints
• Forms a transparent coating that increases joint friction
• Restores stability to worn or loose articulated parts
• Maintains smooth movement while improving holding strength
• Easy-to-use pen applicator for precise application
• Suitable for ball joints, polycaps, and friction-fit assemblies
• Durable coating resists wear from repeated posing
• Ideal for Gunpla, scale models, figures, and articulated kits

How to Use:

1. Shake the pen thoroughly before use.
2. Press the tip until the solution begins to flow.
3. Apply a thin, even coat to the loose joint surface.
4. Allow the coating to dry for approximately 2–5 minutes until clear.
5. Reassemble the joint and test the fit. Repeat if additional tightening is required.

An essential maintenance tool for builders and collectors, the DSPIAE BP-SP Plastic Ball Joint Strengthening Pen provides a quick and effective solution for restoring loose joints and keeping your models posed exactly how you want them.