WEST SYSTEM 403-28 Microfibers, 20 oz
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WEST SYSTEM 403-28 Microfibers, 20 oz
WEST SYSTEM Fillers modify the consistency of epoxy, greatly increasing its versatility for a wide array of applications
WEST SYSTEM 403-28 Microfibers, 20 oz
商品＃: 23836966

WEST SYSTEM 403-28 Microfibers, 20 oz

商品＃: 23836966

JPY 11413

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Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from アメリカ

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アメリカ USA ストアからの輸入品
今すぐ注文すると 頃に届きます 土曜日, 7月 11
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WEST SYSTEM Fillers modify the consistency of epoxy, greatly increasing its versatility for a wide array of applications
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この商品の利点

Exceptional Strength
WEST SYSTEM 403-28 Microfibers enhance the strength and durability of epoxy systems, providing superior bonding and resistance to impact, making it ideal for demanding applications.
Versatile Applications
These microfibers are suitable for various projects, ranging from boat construction to general repairs, making them a versatile choice for professionals and DIY enthusiasts alike.
Easy Mixing
The lightweight nature of WEST SYSTEM 403-28 Microfibers allows for easy mixing with epoxy, ensuring a smooth application while reducing the overall weight of the cured product.

製品詳細

Shop the best deals on WEST SYSTEM 403-28 Microfibers at Ubuy 日本. Discover great discounts and fast delivery for all your fiberglass filling needs.
  • Thickens epoxy resin and hardener for multi-purpose adhesive
  • Ideal for bonding wood with good gap-filling qualities and excellent wetting-out/penetrating into wood fibers
  • Creates non-slumping adhesive with high-density filler for bonding wood joints
  • Amount of filler added controls epoxy's viscosity with no strict formula
  • Chart offers guidelines for different consistencies of thickened epoxy: catsup, mayonnaise, and peanut butter
  • Ability to create own epoxy/filler recipe for consistent viscosity across multiple batches
Item Weight1.5 lbs (680 grams)

どんな人にお勧めですか？

Suitable For
  • Boat Builders

    Ideal for enhancing epoxy applications in boat construction and repair, providing improved strength and durability.

  • DIY Enthusiasts

    Perfect for home improvement projects requiring reinforced adhesive, ensuring a stronger bond for various materials.

  • Composite Repairs

    Useful for those working with fiberglass or carbon fiber, offering additional structural integrity in repairs and modifications.

Not Suitable For
  • Casual Users

    Not suitable for individuals needing a simple adhesive solution that requires no additional reinforcing.

  • Non-Professionals

    Less effective for individuals unfamiliar with epoxy use, as it may complicate basic projects.

  • Short-Term Fixes

    Not ideal for temporary repairs where permanent bonding strength is not necessary for success.

製品説明書

WEST SYSTEM 403-28 Microfibers, 20 oz

何か質問はありますか？ おしゃべりしましょう

顧客の質問と回答

  • 質問: What are WEST SYSTEM 403-28 Microfibers used for?

    答え: WEST SYSTEM 403-28 Microfibers are primarily utilized as a filler for epoxy resin applications. They enhance the physical properties of the epoxy, making it thicker and more suited for vertical surfaces, while also improving bonding strength. This is especially useful in boat repairs and construction where robust adhesion is crucial. Additionally, these microfibers can be used in applications requiring gap-filling or inlay work, offering an excellent solution for achieving smooth finishes in various projects.
  • 質問: How do I mix WEST SYSTEM 403-28 Microfibers with epoxy resin?

    答え: To use WEST SYSTEM 403-28 Microfibers, start by preparing your epoxy resin according to the manufacturer's instructions. Gradually add the microfibers to the mixed epoxy until the desired consistency is achieved. A thicker paste is recommended for vertical or overhead applications to prevent sagging. This allows for effective filling and bonding in construction or repair projects, ensuring long-lasting results in your work.
  • 質問: Are WEST SYSTEM 403-28 Microfibers safe to use?

    答え: While WEST SYSTEM 403-28 Microfibers are generally safe when used correctly, it’s important to follow safety protocols. Wearing gloves, a mask, and protective eyewear is advisable to prevent any irritation or allergic reactions. Proper ventilation during application also minimizes inhalation hazards. These precautions ensure a safe working environment, making it suitable for both hobbyists and professionals in various crafting and boating projects.
  • 質問: Can I use WEST SYSTEM 403-28 Microfibers for sanding?

    答え: No, WEST SYSTEM 403-28 Microfibers are not intended for sanding purposes. Instead, they serve as a filler for thickening epoxy resin to achieve a desired texture and bonding capability for vertical applications. If you’re looking to create a smoother finish post-application, once the epoxy has fully cured, traditional sanding techniques can be applied to achieve the desired surface finish.
  • 質問: What is the shelf life of WEST SYSTEM 403-28 Microfibers?

    答え: When stored properly, WEST SYSTEM 403-28 Microfibers can have a long shelf life. It's crucial to keep them in a cool, dry place and ensure that the container is tightly sealed to prevent moisture from affecting the granules. This is important because exposure to damp conditions can alter the performance and effectiveness in your epoxy applications, making it vital for users in crafting and building to observe these storage recommendations.
  • 質問: Are there specific projects that benefit from using WEST SYSTEM 403-28 Microfibers?

    答え: Yes, several projects benefit from using WEST SYSTEM 403-28 Microfibers, particularly in marine applications. They are ideal for boat repairs, where a thickened epoxy is required to bridge gaps, fill voids, or bond to vertical surfaces without drooping. This makes them perfect for scenarios such as repairing transoms, hulls, or deck fittings, ensuring structural integrity and durability in tough marine environments.
  • 質問: Can WEST SYSTEM 403-28 Microfibers be used with other brands of epoxy?

    答え: While WEST SYSTEM 403-28 Microfibers are formulated for optimal performance with WEST SYSTEM epoxies, they may be compatible with other epoxy brands. It’s essential to test compatibility for the best results. If you’re working on projects using different epoxy systems, understanding the specific chemical interactions is crucial to maintain adhesive strength and effectiveness in your applications.
  • 質問: What is the optimal temperature for applying WEST SYSTEM 403-28 Microfibers?

    答え: The optimal temperature for applying WEST SYSTEM 403-28 Microfibers in epoxy is between 60°F and 90°F. Within this range, the epoxy cures effectively, ensuring strong bonds and proper thickness. Colder temperatures can slow curing times and affect viscosity, while hotter conditions may cause premature curing. Therefore, understanding these temperature dynamics is important for achieving the desired consistency and performance in your projects.
  • 質問: How do I clean up after using WEST SYSTEM 403-28 Microfibers?

    答え: After using WEST SYSTEM 403-28 Microfibers, clean up any spills or excesses using a solvent such as acetone before the epoxy has cured. For tools or containers, do so immediately; however, once the epoxy hardens, removal becomes significantly more difficult. Using disposable tools is often a convenient method for application and cleanup, minimizing mess and ensuring effective use of the materials.
  • 質問: Where can I buy WEST SYSTEM 403-28 Microfibers in Japan?

    答え: You can purchase WEST SYSTEM 403-28 Microfibers from Ubuy, which is one of the reliable platforms for securing marine supplies and epoxy products. They offer a comprehensive selection of products, including specialized materials needed for your repair or crafting projects. With Ubuy, you can easily find and order WEST SYSTEM microfibers, ensuring you have the right tools for your next endeavor.

WestSystem Wood Filler Editorial Review

The WEST SYSTEM 403-28 Microfibers is a versatile product that can be used as a thickener or extender for epoxy mixes. It provides body to the mixture, making it ideal for use as a filler. However, it should be noted that the 403 Microfibers is white in color and may slightly alter the color of gel coat when used to thicken it. For gel coat applications on vertical surfaces to prevent sagging, the 406 Colloidal Silica may be a better choice. The fibers in the 403 Microfibers are made from a blend of cellulose pulp and silica. It can be mixed with sawdust to achieve a color match with woodwork, and it is also easy to sand.

お客様のレビュー＆評価

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この商品のレビュー

お考えをお聞かせください

長所

  • Versatile product that can be used as a thickener or extender for epoxy mixes
  • Provides body to the mixture, making it ideal for use as a filler
  • Can be mixed with sawdust to achieve a color match with woodwork
  • Easy to sand

短所

  • White color may slightly alter the color of gel coat

Platform Trust & Buyer Confidence

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Mohd
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“The product received very good packaging & safe…Thank You”

16 June 2026 · via Trustpilot
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“Accurate delivery timing given”

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6/7/2026 · via Trustpilot
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“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”

12 June 2026 · via Trustpilot
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JPY 11413

今すぐ注文すると 頃に届きます 土曜日, 7月 11

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  • fedex
  • dhl
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特徴と利点

  • WEST SYSTEM offers high-quality epoxy resins, hardeners, fillers, and additives
  • Proprietary, structural, and marine grade formulations
  • Products have set the standard for epoxy quality since 1969
  • Selection guide for choosing the right products
  • Fillers greatly increase epoxy's versatility

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