--- product_id: 164415976 title: "White Glass Microspheres - Filler for Epoxy and Polyester Resin - Quart Tub" brand: "fasco epoxies" price: "R$322" currency: BRL in_stock: true reviews_count: 8 category: "Fasco Epoxies" url: https://www.desertcart.com.br/products/164415976-white-glass-microspheres-filler-for-epoxy-and-polyester-resin-quart store_origin: BR region: Brazil --- # Engineered hollow borosilicate glass Improves weight-to-strength ratio Easy sanding filler White Glass Microspheres - Filler for Epoxy and Polyester Resin - Quart Tub **Brand:** fasco epoxies **Price:** R$322 **Availability:** ✅ In Stock ## Summary > ⚡ Elevate your resin game with featherlight strength and flawless finish! ## Quick Answers - **What is this?** White Glass Microspheres - Filler for Epoxy and Polyester Resin - Quart Tub by fasco epoxies - **How much does it cost?** R$322 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/164415976-white-glass-microspheres-filler-for-epoxy-and-polyester-resin-quart) ## Best For - fasco epoxies enthusiasts ## Why This Product - Trusted fasco epoxies brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Pure White Aesthetic:** Adds a clean, bright tone to your resin projects for a premium look - • **Versatile Putty Maker:** Mix with cabosil for a professional-grade general purpose putty - • **Effortless Sanding Finish:** Smooth, easy-to-shape filler for flawless surface prep - • **Lightweight Strength Booster:** Enhances epoxy and polyester resins without adding bulk - • **Dimensional Stability Champion:** Prevents cracking and warping for long-lasting durability ## Overview Fasco Epoxies White Glass Microspheres are microcellular hollow borosilicate glass spheres designed to enhance epoxy and polyester resins by improving weight-to-strength ratio and dimensional stability. This white filler sands easily, making it ideal for lightweight fairing compounds and putty when combined with cabosil. Perfect for professionals seeking durable, smooth, and visually clean resin repairs or builds. ## Description Fasco Epoxies White Glass Microspheres - Filler for Epoxy and Polyester Resin - Quart Tub: desertcart.com: Tools & Home Improvement Review: Airborn glass spheres - Be sure to wear a dust mask around using this stuff. It quickly aerosols when scooping it out, but not overly so, like a powder that seems to evaporate into the air vs staying on the spoon. One can scoop it out without issue. As to mixing it with resin I had varying results. The goal was to reduce how brittle epoxy resin is. I think it achieved this, with one or two plastic spoons worth in measure. This would also depend on how much resin its being put into. Stir until it has a kind of foamy creamy texturing, having premixed the resin beforehand. In cold casting into a silicon mold, I noticed that it tended to sink to the very bottom and create some small air pockets in the final casting. Using less of this powder reduced the issue but also left the resin more brittle. Using a lot of this powder may lead to a semi flexible casting. Elsewise I guess it works as intended. It also adds a white color to the mixture. I didn't experience a dust cloud when opening the initial foil seal, or afterwards. Just use care to open the lid slowly, and maybe wear some eye protection. Review: works well - Very easy to use and sands easily ## Features - Sands Easy Added to epoxy or polyester to make a lightweight fairing compound - Also Called Glass Bubbles - Microspheres Improves the Weight to Strength Ratio Improves Dimensional Stability - When added with our cabosil (equal parts by volume) it makes a great general purpose putty - engineered hollow glass microspheres ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07KPL163Y | | Best Sellers Rank | #79,161 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #108 in Wood Filler | | Brand | Fasco Epoxies | | Brand Name | Fasco Epoxies | | Color | White | | Compatible Material | Glass | | Container Type | Pail | | Customer Reviews | 4.8 out of 5 stars 356 Reviews | | Item Form | Liquid, Paste | | Item Package Quantity | 1 | | Item Weight | 16 ounces | | Manufacturer | Fasco Epoxies Inc. | | Material | Borosilicate Glass | | Material Type | Borosilicate Glass | | Model | FIL02Q | | Number of Packs | 1 | | Other Special Features of the Product | Microcellular hollow glass microspheres for improved weight-to-strength ratio and dimensional stability | | Part Number | FIL02Q | | Special Feature | Microcellular hollow glass microspheres for improved weight-to-strength ratio and dimensional stability Special Feature Microcellular hollow glass microspheres for improved weight-to-strength ratio and dimensional stability See more | | UPC | 819794020770 | | Unit Count | 32 Fluid Ounces | | Viscosity Level | Medium to High | | Volume | 946.35 ml | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** Fasco Epoxies - **Color:** White - **Item Form:** Liquid, Paste - **Material:** Borosilicate Glass ## Images ![White Glass Microspheres - Filler for Epoxy and Polyester Resin - Quart Tub - Image 1](https://m.media-amazon.com/images/I/61Rg6ThK9cL.jpg) ![White Glass Microspheres - Filler for Epoxy and Polyester Resin - Quart Tub - Image 2](https://m.media-amazon.com/images/I/71yC+9Ak6GL.jpg) ## Questions & Answers **Q: Do microballoons dry clear?** A: In my experience, clarity depends on the amount of microballoon powder added. I am using with finishing epoxy, which normally dries clear. To get the consistency I need, there is a slight whitish haze to the dried result. **Q: volume or mass ?. In planet earth we use to have measurements "Quart Tub" really?** A: Volume. Canister was full. Material very light. Worked well with Poly resin for faring. **Q: would this work to fix a snapped surfboard?** A: It doesn’t have any repair properties, it just adds volume to your epoxy **Q: Is this hydrophobic fumed silica?** A: This is not fumed silica, but this also is not a hydrophobic filler. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Airborn glass spheres *by A***M on August 21, 2023* Be sure to wear a dust mask around using this stuff. It quickly aerosols when scooping it out, but not overly so, like a powder that seems to evaporate into the air vs staying on the spoon. One can scoop it out without issue. As to mixing it with resin I had varying results. The goal was to reduce how brittle epoxy resin is. I think it achieved this, with one or two plastic spoons worth in measure. This would also depend on how much resin its being put into. Stir until it has a kind of foamy creamy texturing, having premixed the resin beforehand. In cold casting into a silicon mold, I noticed that it tended to sink to the very bottom and create some small air pockets in the final casting. Using less of this powder reduced the issue but also left the resin more brittle. Using a lot of this powder may lead to a semi flexible casting. Elsewise I guess it works as intended. It also adds a white color to the mixture. I didn't experience a dust cloud when opening the initial foil seal, or afterwards. Just use care to open the lid slowly, and maybe wear some eye protection. ### ⭐⭐⭐⭐⭐ works well *by S***E on July 28, 2026* Very easy to use and sands easily ### ⭐⭐⭐⭐⭐ good epoxy filler compound at a great price *by G***D on August 20, 2025* great product, good replacement for the SIG micro ballons I have used in the past on my models ## Frequently Bought Together - Fasco Epoxies White Glass Microspheres - Filler for Epoxy and Polyester Resin - Quart Tub - Fasco Epoxies - Fasco Cab-O-SIL Fumed Silica thickener in Quart tub - TotalBoat 5:1 Marine Epoxy Resin Kit for Bonding, Filleting, Coating, and Laminating - Use for Fiberglass, Wood, Carbon Fiber, Boat Building, Repairs, Woodworking (Gallon, Slow Hardener, Pumps) --- ## 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.com.br/products/164415976-white-glass-microspheres-filler-for-epoxy-and-polyester-resin-quart](https://www.desertcart.com.br/products/164415976-white-glass-microspheres-filler-for-epoxy-and-polyester-resin-quart) --- *Product available on Desertcart Brazil* *Store origin: BR* *Last updated: 2026-10-22*