Tamiya 89930 Poly Putty Hardening Agent 4g - Model Maker Hardener  [89930]

Improve Your Model Finishes with Tamiya Poly Putty Hardening Agent

For kit builders who demand clean, long-lasting repairs, the Tamiya Poly Putty Hardening Agent in 4g size is designed to mix with Tamiya poly putty to give firmer fills and a smoother working texture for small-scale modelling tasks.

Perfect for Precision Repairs and Detailing

The addition of this hardening agent helps preserve fine shapes and filled seams, making it easier to achieve crisp detail on scale bodies and components. It supports both cosmetic fixes and light structural touch-ups.

How to Mix and Work the Putty

Blend the hardening agent evenly into the poly putty and use modest amounts to control setting speed. Once the mix has hardened you can trim, sand and finish the area to match the surrounding surface.