--- product_id: 404835055 title: "White Glass Microspheres - Filler for Epoxy and Polyester Resin - Quart Tub" brand: "fasco epoxies" price: "12650 som" currency: KGS in_stock: true reviews_count: 5 category: "Fasco Epoxies" url: https://www.desertcart.kg/products/404835055-white-glass-microspheres-filler-for-epoxy-and-polyester-resin-quart store_origin: KG region: Kyrgyzstan --- # Engineered hollow glass microspheres for stability Lightweight filler boosts strength-to-weight ratio Easy sanding for flawless surface finishing White Glass Microspheres - Filler for Epoxy and Polyester Resin - Quart Tub **Brand:** fasco epoxies **Price:** 12650 som **Availability:** ✅ In Stock ## Summary > ⚡ Elevate your resin game with the ultimate lightweight filler! ## Quick Answers - **What is this?** White Glass Microspheres - Filler for Epoxy and Polyester Resin - Quart Tub by fasco epoxies - **How much does it cost?** 12650 som with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/404835055-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 - • **Mix & Master:** Pairs perfectly with cabosil for a versatile, general-purpose putty that adapts to your toughest repairs. - • **Smooth Operator:** Effortlessly sands to perfection, giving your epoxy or polyester resin a flawless, professional finish every time. - • **Dimensional Dynamo:** Engineered hollow glass microspheres enhance dimensional stability, preventing cracks and warping. - • **Pro-Grade Performance:** Trusted by pros with a 4.8-star rating from 336 reviews—join the elite crafting community now. - • **Featherweight Strength:** Revolutionize your resin projects with ultra-light, high-strength filler that won’t weigh you down. ## Overview White Glass Microspheres by Fasco Epoxies are microcellular hollow glass particles designed as a lightweight filler for epoxy and polyester resins. They improve the weight-to-strength ratio and dimensional stability of resin mixtures, sand easily for smooth finishes, and can be combined with cabosil to create a versatile putty. Ideal for professional-grade repairs and crafting, this 946 ml quart tub is highly rated for enhancing resin durability without adding bulk. ## Description Micro cellular hollow fiberglass particles for adding to resin as a filler reinforcement for easy to sand lightweight filling. White in color. Sometimes called Glass Bubbles or Glass Microspheres. 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: Micro Balloons - Easy to use micro balloons to act as filler for windsurf board repair. Mixes well with epoxy. ## 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 | | Brand | Fasco Epoxies | | Colour | White | | Compatible Material | Fibreglass, Glass | | Container Type | Pail | | Customer Reviews | 4.8 out of 5 stars 336 Reviews | | Item Form | Liquid | | Item Package Quantity | 1 | | Item Volume | 946.35 Millilitres | | Item Weight | 1 Pounds | | Item form | Liquid | | Manufacturer | Fasco Epoxies Inc. | | Manufacturer Part Number | FIL02Q | | Material | Glass | | Model Number | FIL02Q | | Other Special Features of the Product | 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 Special feature Microcellular hollow glass microspheres for improved weight-to-strength ratio and dimensional stability See more | | Specific Uses For Product | Epoxy Resin, Polyester Resin | | Specific uses for product | Epoxy Resin, Polyester Resin | | UPC | 819794020770 | | Unit Count | 946 millilitre | | Water Resistance Level | Not Water Resistant | ## Product Details - **Brand:** Fasco Epoxies - **Item form:** Liquid - **Material:** Glass - **Specific uses for product:** Epoxy Resin, Polyester Resin ## 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 21 August 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. ### ⭐⭐⭐⭐⭐ Micro Balloons *by E***S on 21 July 2025* Easy to use micro balloons to act as filler for windsurf board repair. Mixes well with epoxy. ### ⭐⭐⭐⭐⭐ Good Stuff *by Y***8 on 22 June 2023* I have been using micro balloons in my hobby of building and flying RC model airplanes for over 50 years. Mix the resin and hardener together first and then add the micro balloons a little bit at a time until you get the desired consistency. Mixing them with epoxy will give a stronger bond but is nearly impossible to sand. Mixing them with finishing resin makes for lighter weight and easy sanding for filling in dings and hangar rash in foamies, fillets and damage repair. ## 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.kg/products/404835055-white-glass-microspheres-filler-for-epoxy-and-polyester-resin-quart](https://www.desertcart.kg/products/404835055-white-glass-microspheres-filler-for-epoxy-and-polyester-resin-quart) --- *Product available on Desertcart Kyrgyzstan* *Store origin: KG* *Last updated: 2026-08-03*