---
product_id: 20049723
title: "West System 404 High-Density Filler, 45 oz | for Bonding & Filleting"
brand: "west system"
price: "₪411"
currency: ILS
in_stock: true
reviews_count: 9
category: "West System"
url: https://www.desertcart.co.il/products/20049723-west-system-404-high-density-filler-45-oz-for-bonding
store_origin: IL
region: Israel
---

# Reduces creep in hardware & stud bonding Gap-filling, non-slumping structural fillets High-density epoxy additive for max strength West System 404 High-Density Filler, 45 oz | for Bonding & Filleting

**Brand:** west system
**Price:** ₪411
**Availability:** ✅ In Stock

## Summary

> 🛠️ Elevate your epoxy game — bond stronger, fill smarter, finish flawless!

## Quick Answers

- **What is this?** West System 404 High-Density Filler, 45 oz | for Bonding & Filleting by west system
- **How much does it cost?** ₪411 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/20049723-west-system-404-high-density-filler-45-oz-for-bonding)

## 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

- • **Gap-Filling Mastery:** Create strong, sag-free fillets that bridge large gaps without tight joinery.
- • **Customizable Viscosity:** Control epoxy thickness from slurry to thick paste by adjusting filler amount for perfect application.
- • **Maximize Bond Strength:** Boost epoxy adhesive power for hardware and fasteners under high cyclic loads.
- • **Versatile Compatibility:** Seamlessly blends with WEST SYSTEM 105 resin, 20X hardeners, G/flex 650, and G/5 adhesives.
- • **Made in the USA with Quality:** Trusted epoxy filler with a 4.7-star rating, engineered for professional-grade woodworking and repairs.

## Overview

West System 404 High-Density Filler is a premium epoxy thickening additive designed to enhance bond strength and create durable, non-slumping fillets. Ideal for hardware bonding and gap filling, it offers customizable viscosity and compatibility with multiple WEST SYSTEM epoxies. Made in the USA, this 45 oz filler is water resistant and highly rated by professionals for structural woodworking and repair applications.

## Description

West System 404 High-Density Filler, 45 oz | for Bonding & Filleting | Strengthen bonds and build smooth fillets with confidence using this high-density structural epoxy filler.: Boating Equipment: desertcart.com: Tools & Home Improvement

Review: Epoxy filler - Nice addition to west epoxy, thickens mixture and fills gaps, just as advertised.
Review: great products - west system is great products

## Features

- High-density epoxy thickening additive for strength – Made in the USA WEST SYSTEM 404 High-Density Filler is used to maximize epoxy’s adhesive properties in hardware bonding and other applications where high cyclic loads or maximum bond strength are required.
- Excellent for hardware and stud bonding – Even small amounts added to epoxy resin and hardener reduce creep in the cured epoxy, making this filler well suited for hardware, fastener, and stud bonding applications.
- Creates strong, non-slumping epoxy mixtures – Mixed with epoxy, this filler produces a gap-filling adhesive capable of forming structural fillets or bridging large gaps without sagging, reducing the need for tight joinery.
- Compatible with multiple WEST SYSTEM epoxies – 404 High-Density Filler can be blended with WEST SYSTEM 105 resin and 20X hardeners, G/flex 650 epoxy, or G/5 five-minute adhesive and cures to an off-white color.
- Viscosity controlled by filler amount – The amount added determines epoxy thickness, from a loose slurry to thicker mixes. For best results, use only enough filler to bridge gaps without trapping air and avoid overfilling the mixing cup.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0006JJAU6 |
| Best Sellers Rank | #182,337 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #221 in Wood Filler |
| Brand | West System |
| Brand Name | West System |
| Color | off-white |
| Compatible Material | Wood |
| Container Type | Aerosol Can |
| Customer Reviews | 4.7 out of 5 stars 108 Reviews |
| Included Components | FILLER HIGH-DENSITY 43 OZ |
| Item Form | Paste |
| Item Package Quantity | 1 |
| Item Type Name | West System Filler |
| Item Weight | 16 ounces |
| Manufacturer | Gougeon Brothers, Inc. |
| Material | epoxy; filler |
| Material Type | epoxy; filler |
| Model | 404-45 |
| Other Special Features of the Product | Strong |
| Part Number | 404-45 |
| Special Feature | Strong |
| Specific Uses For Product | Carpentry, Gap Filling, Hardware Bonding, Repair, Structural Fillets, Woodworking |
| UPC | 811343011413 |
| Unit Count | 43 Ounce |
| Viscosity Level | High |
| Volume | 219 ml |
| Warranty Description | Limited Warranty |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** West System
- **Item Form:** Paste
- **Material:** epoxy; filler
- **Special Feature:** Strong
- **Specific Uses For Product:** Carpentry, Gap Filling, Hardware Bonding, Repair, Structural Fillets, Woodworking

## Images

![West System 404 High-Density Filler, 45 oz | for Bonding & Filleting - Image 1](https://m.media-amazon.com/images/I/71wtb8ECQOL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Epoxy filler
*by B***I on December 9, 2023*

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

### ⭐⭐⭐⭐⭐ great products
*by R***U on December 30, 2025*

west system is great products

### ⭐⭐⭐⭐⭐ Great filler
*by K***A on June 25, 2025*

I use West System products exclusively when doing marine fiberglass repairs/modifications. There are many different filler options, so choose the one that best fits your needs. Mix the resin, add the filler and mix to your desired consistency, then apply. For me, usually similar to mayonnaise works best. Drying time will depend on your choice of hardener and if you've adjusted the resin/hardener ratio.

## 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.il/products/20049723-west-system-404-high-density-filler-45-oz-for-bonding](https://www.desertcart.co.il/products/20049723-west-system-404-high-density-filler-45-oz-for-bonding)

---

*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-09-09*