---
product_id: 390390269
title: "West System 40445 High Density Filler-43 Oz"
brand: "west system"
price: "$301"
currency: NZD
in_stock: true
reviews_count: 5
category: "West System"
url: https://www.desertcart.nz/products/390390269-west-system-40445-high-density-filler-43-oz
store_origin: NZ
region: New Zealand
---

# Gap-filling thickener High-density epoxy filler 43 oz professional size West System 40445 High Density Filler-43 Oz

**Brand:** west system
**Price:** $301
**Availability:** ✅ In Stock

## Summary

> 🛠️ Elevate your epoxy game—fill gaps like a pro, every time!

## Quick Answers

- **What is this?** West System 40445 High Density Filler-43 Oz by west system
- **How much does it cost?** $301 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/390390269-west-system-40445-high-density-filler-43-oz)

## Best For

- west system enthusiasts

## Why This Product

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

## Key Features

- • **Trusted by Experts:** 4.7-star rating with proven performance in automotive repairs
- • **Precision Gap Filling:** Seamlessly thickens epoxy mixtures for flawless repairs
- • **Reliable Compatibility:** Optimized for use with WEST SYSTEM epoxy products
- • **Durable Off-White Finish:** Ensures a smooth, paint-ready surface every time
- • **Professional Grade Volume:** Generous 43 oz size designed for extensive projects

## Overview

West System 40445 High Density Filler is a 43-ounce, off-white epoxy filler designed to thicken mixtures and fill gaps with precision. Trusted by professionals and DIYers alike, it seamlessly integrates with WEST SYSTEM epoxy products to deliver durable, smooth, and paint-ready surfaces for automotive and specialty repairs.

## Description

43 OUNCE

Review: Nice addition to west epoxy, thickens mixture and fills gaps, just as advertised.
Review: Works has West System had said

## Features

- WEST SYSTEM EPOXY PRODUCTS 40445, WSY40445

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0006JJAU6 |
| Batteries Required? | No |
| Best Sellers Rank | #31,664 in Automotive ( See Top 100 in Automotive ) #129 in Automotive Fillers, Adhesives & Sealants |
| Color | off-white |
| Customer Reviews | 4.7 4.7 out of 5 stars (96) |
| Date First Available | 30 October 2013 |
| Item model number | 404-45 |
| Material Type(s) | epoxy; filler |
| Number of Puzzle Pieces | 1 |
| Product Dimensions | 53.98 x 40.64 x 29.21 cm; 1.5 kg |

## Product Details

- **Brand:** West System
- **Item form:** Liquid
- **Material:** epoxy; filler
- **Special features:** Strong
- **Specific uses for product:** Hardware Bonding

## Images

![West System 40445 High Density Filler-43 Oz - Image 1](https://m.media-amazon.com/images/I/71wtb8ECQOL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by B***I on 9 December 2023*

Nice addition to west epoxy, thickens mixture and fills gaps, just as advertised.

### ⭐⭐⭐⭐⭐ Review
*by G***S on 7 March 2023*

Works has West System had said

### ⭐⭐⭐⭐⭐ Review
*by R***U on 30 December 2025*

west system is great products

## Frequently Bought Together

- WEST SYSTEM 404-45 High Density Filler 46oz.
- WEST SYSTEM 105A Epoxy Resin (32 fl oz) Bundle with 205A Fast Epoxy Hardener (7 fl oz) and 300 Mini Pumps Epoxy Metering 3-Pack Pump Set (3 Items)
- West System 406-7 Collodial Silica 5.5oz, off-white

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**Shop now:** [https://www.desertcart.nz/products/390390269-west-system-40445-high-density-filler-43-oz](https://www.desertcart.nz/products/390390269-west-system-40445-high-density-filler-43-oz)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-27*