---
product_id: 767886206
title: "Ronseal 35304 High Performance Wood Filler - Natural 550g"
brand: "ronseal"
price: "€ 28.18"
currency: EUR
in_stock: false
reviews_count: 6
url: https://www.desertcart.ie/products/767886206-ronseal-35304-high-performance-wood-filler-natural-550g
store_origin: IE
region: Ireland
---

# Water resistant for interior/exterior 30 min full cure time 800 PSI tensile strength Ronseal 35304 High Performance Wood Filler - Natural 550g

**Brand:** ronseal
**Price:** € 28.18
**Availability:** ❌ Out of Stock

## Summary

> 🪚 Fix it once, fix it right — Ronseal’s wood filler means business.

## Quick Answers

- **What is this?** Ronseal 35304 High Performance Wood Filler - Natural 550g by ronseal
- **How much does it cost?** € 28.18 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/767886206-ronseal-35304-high-performance-wood-filler-natural-550g)

## Best For

- ronseal enthusiasts

## Why This Product

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

## Key Features

- • **Fast & Efficient:** Sets hard in just 30 minutes—get your project done without the wait.
- • **Ready for Action:** Can be drilled, screwed, or planed after curing for seamless finishing.
- • **Unmatched Durability:** Chemically bonded formula delivers tough, crack-free repairs that last.
- • **Multi-Surface Mastery:** Ideal for windows, doors, sills—interior or exterior, it’s got you covered.
- • **Versatile Depth Filling:** Fills any depth with no shrinkage, perfect for deep wood damage.

## Overview

Ronseal 35304 High Performance Wood Filler is a 550g chemically bonded paste designed for tough, long-lasting wood repairs. With an 800 PSI tensile strength and a quick 30-minute cure time, it fills any depth without shrinking or cracking. Water resistant and suitable for both interior and exterior use, it can be drilled, screwed, or planed after curing, making it the go-to solution for professional-grade wood restoration on windows, doors, and more.

## Description

Few things are beyond repair with Ronseal High Performance Woodfiller is a chemically bonded filler and catalyst that provides extremely tough repairs to virtually any wood damage without shrinking or cracking. Fills to any depth and can be drilled, screwed or planed. Ideal for use in interior or exterior wood repairs more than 5 mm deep. Typical areas include window frames, sills, doors and door frames. For minor and surface wood repairs use Ronseal Multi Purpose Wood Filler.Areas of use: Interior / Exterior wood.Application: Filling Knife.Drying time approx: 30 mins.Protection level: Very High.Available in Various Sizes.Available in: Natural, Dark or White. The Ronseal RSLHPWFN550G is supplied in a tub with re-sealable lid. Colour - Natural.Size: 550g.It does what it says on the tinTheir aim at Ronseal is always to provide products that meet exactly your requirements; that is why they spend a lot of time listening to what you have to say. They then take that feedback into their R & D Laboratories, and using the very latest technological advancements, they can then deliver innovative new products and the quality service for your DIY and project needs.This is an ongoing process and, coupled with their no-nonsense advertising and marketing, and their extensive consumer education, these innovative new product developments will continue to help them lead in their product categories, meeting and exceeding your requirements in the future.

Review: This includes wood Hartner, which is game changer - This this thing is legit and even comes with harder to mix into the wood filler so it really does help with wood issues if you need to fill them
Review: I used this to repair a hole in a hardwood door, which I was left with having scraped out as much of the rotten wood as I could, followed by treatment with Ronseal Wet Rot Wood Hardener. The hole was approximately 3x4 inches and 3/4 inch deep. First of all I hammered in a few galvanised nails to give some extra grip and then mixed up and applied the wood filler to the hole in one batch. The resin and catalyst mixed together easily and it was not too difficult to fill up the hole. However, it was a messy process and wearing rubber gloves turned out to be a wise move. After four hours it had set hard and I sanded it down with a power sander to give a perfect finish. The next day I put on a couple of coats of Ronseal Woodstain, but I will probably need a few more before this patch blends in with the rest of the mahogany stained door. A darker coloured product would have been better. The process was much easier than using a conventional wood filler as: 1. I finished the job with one application 2. It set quickly 3. Sanding was very easy to give a good finish 4. There is no sign of cracking or shrinkage. As a final note I managed to get the stuff all over the tin and lid, and so I have doubts on how well I've sealed it and the remaining filler will probably not last too long on storage. So, if like me you're a messy worker, I would advise you to buy only what you need.

## Features

- The Ronseal RSLHPWFN550G is supplied in a tub with re-sealable lid.
- It is a chemically bonded filler and catalyst that provides extremely tough repairs to virtually any wood damage without shrinking or cracking
- Fills to any depth and can be drilled, screwed or planed
- Can be drilled, screwed or planed
- Rebuilds rotten wood
- Cures wet rot and prevents recurrence
- No shrinking or cracking
- For interior and exterior use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001GU2H6S |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #838,933 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #793 in Wood Filler |
| Brand | RONSEAL |
| Color | NATURAL |
| Customer Reviews | 4.5 4.5 out of 5 stars (776) |
| Date First Available | August 6, 2012 |
| Full Cure Time | 30 Minutes |
| Global Trade Identification Number | 05010214538690 |
| Is Discontinued By Manufacturer | No |
| Item Form | Paste |
| Item Package Quantity | 1 |
| Item Weight | 1.63 pounds |
| Item model number | 35304 |
| Manufacturer | Ronseal |
| Material | Wood |
| Number of Items | 6 |
| Part Number | 35304 |
| Product Dimensions | 4.33 x 4.33 x 3.94 inches |
| Size | 550G |
| Style | Single |
| Surface Recommendation | Window, Door, Wood |
| Tensile Strength | 800 Pounds Per Square Inch |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** RONSEAL
- **Color:** NATURAL
- **Full Cure Time:** 30 Minutes
- **Item Form:** Paste
- **Item Weight:** 0.74 Kilograms

## Images

![Ronseal 35304 High Performance Wood Filler - Natural 550g - Image 1](https://m.media-amazon.com/images/I/51yuxU6u6qL.jpg)
![Ronseal 35304 High Performance Wood Filler - Natural 550g - Image 2](https://m.media-amazon.com/images/I/71yEqlfJQ+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ This includes wood Hartner, which is game changer
*by C***O on August 21, 2025*

This this thing is legit and even comes with harder to mix into the wood filler so it really does help with wood issues if you need to fill them

### ⭐⭐⭐⭐⭐ Review
*by B***E on March 13, 2015*

I used this to repair a hole in a hardwood door, which I was left with having scraped out as much of the rotten wood as I could, followed by treatment with Ronseal Wet Rot Wood Hardener. The hole was approximately 3x4 inches and 3/4 inch deep. First of all I hammered in a few galvanised nails to give some extra grip and then mixed up and applied the wood filler to the hole in one batch. The resin and catalyst mixed together easily and it was not too difficult to fill up the hole. However, it was a messy process and wearing rubber gloves turned out to be a wise move. After four hours it had set hard and I sanded it down with a power sander to give a perfect finish. The next day I put on a couple of coats of Ronseal Woodstain, but I will probably need a few more before this patch blends in with the rest of the mahogany stained door. A darker coloured product would have been better. The process was much easier than using a conventional wood filler as: 1. I finished the job with one application 2. It set quickly 3. Sanding was very easy to give a good finish 4. There is no sign of cracking or shrinkage. As a final note I managed to get the stuff all over the tin and lid, and so I have doubts on how well I've sealed it and the remaining filler will probably not last too long on storage. So, if like me you're a messy worker, I would advise you to buy only what you need.

### ⭐⭐⭐⭐⭐ Review
*by M***O on October 18, 2023*

riparata con estrema soddisfazione un bordo di un infisso per esterni. semplice da usare, intuitivo.

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---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-01*