Tetrion External Hard as Rock Filler 330g

The Tetrion External Hard as Rock Filler 330g is a high-performance, ready-to-use filler designed for robust exterior repairs. Formulated to withstand the harsh UK weather, it provides a rock-hard, waterproof finish that resists cracking and crumbling. It is ideal for filling and smoothing cracks, holes, and damaged areas on a wide variety of outdoor surfaces before painting or rendering.

This filler is exceptionally easy to apply straight from the tub, requiring no mixing. It adheres strongly to common building materials, dries quickly, and can be sanded, drilled, and painted over once fully cured. Its waterproof properties make it perfect for long-lasting repairs on walls, render, stonework, brick, and concrete, ensuring a durable and seamless finish that blends with the existing substrate.

Packaged in a convenient 330g tub, it's the ideal size for numerous small to medium repair jobs around the home and garden. With Tetrion's reputation for quality, this external filler offers a reliable, professional-grade solution for maintaining and protecting the exterior of your property.