Features & Benefits
- Prevents epoxy runoff in vertical and overhead joints
- Improves strength, abrasion resistance, and consistency
- Epoxy thickening additive
- Cures to an off-white color
- Home Page /
- Automotive /
- Car Care /
- Finishing /
- Corrosion & Rust Inhibitors /
- WEST SYSTEM 406 Colloidal Silica Epoxy Filler...
0 ratings
Item #:
33831159
WEST SYSTEM 406 Colloidal Silica Epoxy Filler Thickening Additive for WEST SYSTEM Epoxy | Viscosity Control for Strong Structural Bonds | Made in the
Item #:
33831159
€ 29
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Thursday, August 27
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
West System 406-2 Colloidal Silica is an epoxy thickening additive that prevents epoxy runoff in vertical and overhead joints and improves the strength, abrasion resistance, and consistency of epoxy fairing compounds.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Thickening Agent
Colloidal silica enhances viscosity, perfect for creating thick epoxy mixtures, addressing users' needs for improved adhesion and strength in their bonding projects.
High Strength
When mixed with epoxy, it significantly increases the strength of the bond, making it ideal for demanding applications on marine, automotive, and home repair projects.
Versatile Use
Suitable for various epoxy systems, this product offers flexibility for users tackling a wide range of crafting, marine, and construction projects, ensuring excellent performance across applications.
Product Details
- Epoxy thickening additive to control viscosity
- Prevents epoxy runoff in vertical and overhead joints
- Improves strength, abrasion resistance, and consistency of epoxy fairing compounds
- Cures to an off-white color
- Creates a smooth mixture for general epoxy bonding and filleting
- Manufactured by Gougeon Brothers, an employee-owned family-run company
| Specific Uses For Product | specific_uses_for_product |
| Item Form | Powder |
| Other Special Features of the Product | special_feature |
| Container Type | container |
| Item Package Quantity | 1 |
| Volume | 1.7 Fluid Ounces |
| Material Type | Plastic |
| Color | white |
| Brand Name | West System |
| Model | 406-2 |
| Unit Count | 1.0 Ounce |
| UPC | 811343011482 |
| Number of Pieces | 1 |
| Manufacturer | Gougeon Brothers, Inc. |
| Part Number | 406-2 |
| Item Type Name | West System 406-2 Colloidal Silica 1.7 oz |
| Included Components | urea-resin-adhesives |
| Brand | West System |
| Material | Plastic |
| Special Feature | special_feature |
| Item Weight | 0.2 lbs (90 grams) |
Who Should Buy?
-
Marine Repair Enthusiasts
Ideal for boat owners needing a strong, waterproof filler for repairing hulls and structural components.
-
DIY Project Craftsmen
Perfect for hobbyists who require a versatile and durable epoxy adhesive for various home improvement tasks.
-
Professional Woodworkers
Valuable for craftsmen seeking a reliable, high-strength bonding agent for intricate woodworking projects.
-
Casual Users
Not suitable for those who need a quick, easy fix without extensive knowledge of epoxy applications.
Product Description
WEST SYSTEM 406 Colloidal Silica Epoxy Filler Thickening Additive for WEST SYSTEM Epoxy | Viscosity Control for Strong Structural Bonds | Made in the USA
About This Item
Introducing the West System 406-2 Colloidal Silica 1.7 oz, the perfect epoxy thickening additive for all your bonding and filleting needs. Whether you're working on vertical or overhead joints, this colloidal silica prevents epoxy runoff, ensuring a clean and precise application every time. What sets the West System 406-2 Colloidal Silica apart is its incredible strength. This filler is designed to create a smooth mixture, making it ideal for general epoxy bonding and filleting.
Its versatility shines through as it can be combined with other fillers to improve strength, abrasion resistance, and consistency of epoxy fairing compounds. The result is a surface that is not only tough but also smooth, ensuring a professional finish. Engineered by West System, a trusted name in epoxy products, this 1.7 oz container of colloidal silica is a must-have for any boat repair or marine project. Its high-quality formula is specifically designed for use in fiberglass, ensuring that your repairs are strong and durable.
Whether you need to fix a small crack or reinforce an entire section, this colloidal silica is up to the task. Not only is it perfect for boat repairs, but the West System 406-2 Colloidal Silica is also suitable for various other applications. From sealing and coating to laminating and bonding, this epoxy filler provides the strength and consistency you need to tackle any project. Its waterproof properties make it an excellent option for wood and fiberglass, ensuring long-lasting results. Don't settle for subpar epoxy products when you can trust West System to deliver exceptional quality and performance.
Add the West System 406-2 Colloidal Silica 1.7 oz to your cart today and experience the difference for yourself. With this epoxy thickening additive, you can achieve professional results every time.
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is West System 406-2 Colloidal Silica used for?
Answer: West System 406-2 Colloidal Silica is primarily used as a thickening agent in epoxy applications. It is designed to add viscosity to epoxy formulations, making it ideal for filling gaps, providing structural stability, and improving overall performance in bonding applications. The silica provides excellent shear strength and helps in creating a manageable consistency that can be easily applied to vertical surfaces or overhead areas. -
Question:
How do you mix West System 406-2 Colloidal Silica with epoxy?
Answer: To mix West System 406-2 Colloidal Silica with epoxy, start by measuring your desired amount of epoxy resin and hardener according to the instructions. Gradually add the colloidal silica to the mixed resin and hardener, stirring continuously until you achieve a uniform mixture. This method ensures the silica is evenly distributed, allowing for optimal thickening and adhesive properties, making it suitable for various applications, such as filling voids or creating fillets in structural bonding. -
Question:
Can West System 406-2 Colloidal Silica be used for vertical surfaces?
Answer: Yes, West System 406-2 Colloidal Silica is ideal for applications on vertical surfaces. Its thickening properties allow the epoxy mixture to maintain its shape and prevent sagging or dripping when applied upright. This makes it especially useful for reinforcing joints, making repairs, or filling gaps in overhead or vertical applications on boats, furniture, and more, where traditional epoxy may flow too easily. -
Question:
Is West System 406-2 Colloidal Silica suitable for marine applications?
Answer: Absolutely! West System 406-2 Colloidal Silica is commonly used in marine applications due to its compatibility with West System epoxy formulations. It enhances the adhesive properties of the epoxy while providing excellent resistance to water and environmental stress. This makes it perfect for boat repair, maintenance, and construction tasks, ensuring a strong, durable bond that withstands harsh marine conditions. -
Question:
What is the ideal application temperature for West System 406-2 Colloidal Silica?
Answer: The ideal application temperature for West System 406-2 Colloidal Silica, when mixed with epoxy, is between 60°F to 90°F (15°C to 32°C). Within this range, the epoxy will cure effectively, ensuring strong adhesion and optimal performance. Applying outside of this temperature range might affect the curing time and strength of the epoxy, making it less effective for bonding and repair tasks. -
Question:
How much West System 406-2 Colloidal Silica should I use?
Answer: The amount of West System 406-2 Colloidal Silica to use depends on the desired viscosity of your epoxy mixture. Typically, a small amount, around 5-15% of the total epoxy weight, is sufficient for most applications. Adjusting the amount will help you achieve the perfect consistency for specific jobs, whether you're aiming for a gooey paste for gap filling or a more fluid mix for spreading over surfaces. -
Question:
Can I use West System 406-2 Colloidal Silica with other brands of epoxy?
Answer: While West System 406-2 Colloidal Silica is formulated to work best with West System epoxy products, it can sometimes be used with other brands of epoxy, provided they are compatible. It's crucial to refer to the other manufacturer's instructions and ensure that the chemical components align. For users looking to maximize performance and reliability, using West System products together is recommended to achieve consistent results. -
Question:
Does West System 406-2 Colloidal Silica have any specific storage requirements?
Answer: Yes, West System 406-2 Colloidal Silica should be stored in a cool, dry place, away from direct sunlight and moisture. Keeping the container sealed will prevent contamination and ensure the product remains effective for future use. Proper storage is key to maintaining the silica’s quality, making sure it performs optimally when mixed with epoxy for your next project. -
Question:
What does 406-2 mean in West System 406-2 Colloidal Silica?
Answer: The designation 406-2 in West System 406-2 Colloidal Silica refers to its formulation type and packaging size. The '406' signifies the specific thickening agent designed to enhance epoxy performance, while the '2' indicates it is a smaller size (1.7 oz) suitable for smaller projects or for users who want to test the product before committing to larger sizes. This classification helps users easily identify the product that best suits their needs. -
Question:
Where can I buy West System 406-2 Colloidal Silica 1.7 oz?
Answer: You can buy West System 406-2 Colloidal Silica 1.7 oz at Ubuy, a reliable platform for purchasing a wide range of products. Ubuy offers an efficient shopping experience with a variety of options and convenient service, making it a great choice for acquiring this specialized product.
WestSystem Corrosion & Rust Inhibitors Editorial Review
This product is a silica filler designed to be used with epoxy for repairs. Customers have reported that it works well and is easy to use. Some have noted that they needed more than expected to achieve the desired thickness, and that it can be quite powdery and dusty, requiring safety precautions when handling. One customer received a damaged shipment with silica powder spilled inside the box, creating a safety hazard. Overall, customers who have used this product for small repairs have found it to be effective and worth the money, but some have noted that it may be expensive for larger repairs.
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Pros
- Easy to use
- Works well for small repairs
- Similar to other brand products
- Delivered quickly
- Top-notch product
Cons
- May be expensive for larger repairs
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer
“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
€ 29
Order now and get it around Thursday, August 27
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.