---
product_id: 121788914
title: "Hard as Rock Filler 330g"
brand: "tetrion"
price: "¥4277"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/121788914-hard-as-rock-filler-330g
store_origin: JP
region: Japan
---

# Screw & bolt ready hold Touch dry in 2 hours Heavy-duty exterior strength Hard as Rock Filler 330g

**Brand:** tetrion
**Price:** ¥4277
**Availability:** ✅ In Stock

## Summary

> 🛠️ Fix it fast, fix it tough — because your projects deserve rock-solid results!

## Quick Answers

- **What is this?** Hard as Rock Filler 330g by tetrion
- **How much does it cost?** ¥4277 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/121788914-hard-as-rock-filler-330g)

## Best For

- tetrion enthusiasts

## Why This Product

- Trusted tetrion brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Fix-All:** Perfect for large holes and tough exterior surfaces with a hard-as-rock finish.
- • **Fast-Track Repairs:** Touch dry in just 2 hours to get your project moving faster.
- • **Crack & Shrink Proof:** Built to resist harsh weather without compromising integrity.
- • **Rock-Solid Durability:** Engineered for plaster, stone, concrete & wood repairs that last outdoors.
- • **Zero Prep, Maximum Speed:** Ready-to-use formula means no mixing—just apply and go.

## Overview

Tetrion Hard as Rock Filler 330g is a ready-to-use, polymer-based exterior filler designed for heavy-duty repairs on plaster, stone, concrete, masonry, and wood. It dries to a durable, crack-resistant finish in just 2 hours, providing a strong hold that accepts screws and bolts, making it ideal for long-lasting outdoor patching and filling jobs.

## Description

Tetrion Hard as Rock Filler 330g

## Features

- SUPER TOUGH EXTERIOR FILLER: Tetrion Hard as Rock Filler is designed for heavy-duty outdoor repairs on plaster, stone, concrete, masonry, and wood
- NO MIXING REQUIRED: Ready-to-use formula eliminates the need for dosing or preparation, making application quick and easy
- FAST DRYING & STRONG HOLD: Touch dry in just 2 hours, providing a durable and long-lasting repair that accepts screws and bolts
- CRACK & SHRINK RESISTANT: Engineered to withstand harsh outdoor conditions without shrinking or cracking over time
- VERSATILE & RELIABLE: Ideal for a wide range of exterior filling jobs, ensuring a rock-hard finish that lasts

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Tetrosyl Limited |
| Part number | TEF330 |
| Item Weight | 354 g |
| Product Dimensions | 4.5 x 7.5 x 22 cm; 354 g |
| Item model number | TEF330 |
| Size | 330g |
| Colour | Hard as Rock |
| Style | Hard as Rock |
| Material | Polymer Plaster |
| Power source type | AC |
| Item Package Quantity | 1 |
| Special Features | Crack Resistant |
| Specific uses | Exterior Use, Stone / Masonry, Large Holes |
| Included components | Tetrion External Hard as Rock 330g Tube - TEF330 |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Tetrion
- **Specific uses for product:** Exterior Use, Stone / Masonry, Large Holes
- **Material:** Polymer Plaster
- **Item form:** Paste
- **Special feature:** Crack Resistant

## Images

![Hard as Rock Filler 330g - Image 1](https://m.media-amazon.com/images/I/61+MeGEZ3UL.jpg)

## Available Options

This product comes in different **Size Name** options.

## Questions & Answers

**Q: exterior use??**
A: Product description indicates it may be used externally  (with limitations: over-paint with oil based paint and do not use on surfaces  'regularly under water!). I have not personably tried using it outside. Think I would use a product specifically designed for outside.

**Q: Hi, is this product used for skimming entire walls/Ceilings?**
A: The outer bag contains a number of smaller bags for small mixes.
This is a jointing compound for applying and covering jointing tape particularly on dry lining joints, although I have successfully repaired ceiling cracks using this and jointing tape.

I’m only a home DIYer and nowhere near professional, but I’d guess if it covers joints it can cover a smooth ceiling, but you’re going to be opening quite a few bags to do a ceiling.

**Q: How big is this in kg's**
A: All I can tell you from the information on the packet its 500 g

**Q: What colour is this product.  Thank you**
A: Very pale grey, or perhaps more an off-white.

## Frequently Bought Together

- Tetrion Hard as Rock Filler 330g
- Harris Seriously Good Continental Filling Knives 4 Pack 102064328, 1 x 2", 1 x 3", 1 x 4",1 x 5"
- Tetrion The Original All Purpose Ready Mixed Filler Tube, 330 ml

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**Shop now:** [https://www.desertcart.jp/products/121788914-hard-as-rock-filler-330g](https://www.desertcart.jp/products/121788914-hard-as-rock-filler-330g)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-16*