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Polycell Ready Mixed Flexible Gap Polyfilla Review: Flexible, non-cracking filler for moving joints?

Polycell 20208 Ready Mixed Tube Flexible Gap Polyfilla, 330 g - White
4.6
[Indoor & Outdoor Use]  Durable formulation suitable for both interior and exterior applications.
[Flexible Gap Filler]  Designed to flex and move without cracking between joining surfaces.
[Polycell Polyfilla 330g]  Convenient 330g tube for controlled application and minimal waste.
[Long Linear Gap Use]  Specifically formulated for filling extended joints and long linear gaps.
[Easy Application Control]  User-friendly application gives precise control and clean professional finishes.
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Home improvement filler for sealing moving joints, promising a flexible, non-cracking finish. Perfect for DIYers and decorators who need neat, long-lasting repairs. Is Polycell Ready Mixed Flexible Gap Polyfilla the best choice for routine gap-filling jobs?

⚡ At a Glance
  • Fill Quality: Flexible, non-cracking filling designed for joints subject to movement
  • Best for: DIYers and decorators tackling small to medium holes and linear gaps
  • Not ideal for: Structural repairs or large voids that need a backing or reinforcing material

Ready-mixed 330 g tube formulated for indoor and outdoor gap filling. Dries to a sandable finish and remains flexible where motion may occur.


Smoother application - with a ready-mixed 330 g tube

Ready-mixed formulation in a tube removes the need to combine powders and liquid, allowing a continuous bead to be applied along long linear gaps. The tube format helps control flow during application.

Easier, tidier filling for skirting, door frames and narrow joints, reducing preparation time and mess.

Durable, movement-tolerant finish - thanks to a flexible formulation

Formulated to remain flexible between two surfaces where motion may occur, the compound accommodates slight movement without splitting. Descriptions specifically note non-cracking performance for moving joints.

Keeps repaired joints intact on elements that shift, such as window surrounds and exterior trims.

Neat decorating finish - with quick-dry and sandable properties

User reviews report the compound dries quickly and sands to a smooth finish, enabling straightforward surface preparation for painting or papering. The cured surface accepts finishing work without prolonged waiting.

Allows faster progression to decorating, helping complete repairs in fewer stages.

✨ The 4 Key Reasons for Polycell Ready Mixed Flexible Gap Polyfilla
  1. Ready-mixed 330 g tube - Smooth, mess-free beads along long linear gaps for quick repairs
  2. Flexible formulation - Maintains seal under movement, reducing crack recurrence over time
  3. Indoor and outdoor use - Suitable across rooms and exterior joints exposed to weather
  4. Sands to smooth finish - Allows painting or papering soon after application for neat results
📋 Technical Details at a Glance
  • Category: Home Improvement
  • Brand: Polycell
  • Product Type: Ready mixed flexible gap Polyfilla
  • Pack size: 330 g tube
  • Colour: White
❓ Frequently Asked Questions

Q: Is this suitable for outdoor repairs?

A: Yes, product descriptions state indoor and outdoor use, so exterior joints exposed to weather are within intended applications.

Q: Can it cope with movement between two surfaces?

A: Yes, designed for flexible, non-cracking filling between two surfaces where motion may occur, so it tolerates slight movement without splitting.

Q: How is the filler applied and finished?

A: Comes ready mixed in a 330 g tube for controlled application along long linear gaps; user reviews note it dries quickly and sands to a smooth finish.

🏆 Our Verdict

Ideal for DIYers and decorators who need a ready-to-use filler for everyday gap repairs. Flexible formulation that resists cracking, combined with a sandable finish, makes it practical for both interior and exterior jobs. Considered a cost-effective choice for ongoing maintenance due to durable, movement-tolerant results.