---
product_id: 164415976
title: "Fasco Epoxies White Glass Microspheres - Filler for Epoxy and Polyester Resin - Quart Tub"
brand: "fasco epoxies"
price: "17844 Ft"
currency: HUF
in_stock: true
reviews_count: 8
category: "Fasco Epoxies"
url: https://www.desertcart.hu/products/164415976-fasco-epoxies-white-glass-microspheres-filler-for-epoxy-and-polyester
store_origin: HU
region: Hungary
---

# Engineered hollow borosilicate glass microspheres Lightweight filler, boosts strength-to-weight ratio Easy sanding for smooth finishes Fasco Epoxies White Glass Microspheres - Filler for Epoxy and Polyester Resin - Quart Tub

**Brand:** fasco epoxies
**Price:** 17844 Ft
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your resin game with featherlight strength and flawless finishes!

## Quick Answers

- **What is this?** Fasco Epoxies White Glass Microspheres - Filler for Epoxy and Polyester Resin - Quart Tub by fasco epoxies
- **How much does it cost?** 17844 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/164415976-fasco-epoxies-white-glass-microspheres-filler-for-epoxy-and-polyester)

## 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

- • **Smooth Operator:** Sands effortlessly to create flawless, professional-grade surfaces every time.
- • **Featherlight Strength:** Enhances epoxy and polyester resins with ultra-light glass microspheres for superior weight-to-strength balance.
- • **Safe & Clean Handling:** White, low-dust formula designed for easy mixing and minimal airborne particles—just mask up and create.
- • **Versatile Putty Power:** Combine with cabosil for a customizable, durable general-purpose putty that adapts to your project needs.
- • **Dimensional Stability Boost:** Engineered microspheres improve stability, reducing shrinkage and cracking in cured resins.

## Overview

Fasco Epoxies White Glass Microspheres are engineered hollow borosilicate glass particles designed as a lightweight filler for epoxy and polyester resins. They improve the weight-to-strength ratio, enhance dimensional stability, and sand easily for smooth, professional results. When mixed with cabosil, they form a versatile putty ideal for various repair and fabrication projects. Packaged in a quart tub, this water-resistant filler is perfect for vehicle body repairs, woodworking, and composite applications.

## 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 |
| Best Sellers Rank | #52,925 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #87 in Wood Filler |
| Brand | Fasco Epoxies |
| Color | White |
| Date First Available | November 19, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid, Paste |
| Item Package Quantity | 1 |
| Item Volume | 946.35 Milliliters |
| Item Weight | 1 pounds |
| Item model number | FIL02Q |
| Manufacturer | Fasco Epoxies Inc. |
| Material | Borosilicate Glass |
| Package Dimensions | 6.73 x 3.74 x 3.7 inches |
| Package Information | Pail |
| UPC | 819794020770 |
| Unit Count | 32 Fluid Ounces |
| Viscosity | Medium to High Viscosity |
| Viscosity Level | Medium to High |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Fasco Epoxies
- **Color:** White
- **Item Form:** Liquid, Paste
- **Item Package Quantity:** 1
- **Material:** Borosilicate Glass

## Images

![Fasco Epoxies White Glass Microspheres - Filler for Epoxy and Polyester Resin - Quart Tub - Image 1](https://m.media-amazon.com/images/I/712adJW0+yL.jpg)
![Fasco Epoxies 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.

### ⭐⭐⭐⭐⭐ Micro Balloons
*by E***S on July 21, 2025*

Easy to use micro balloons to act as filler for windsurf board repair. Mixes well with epoxy.

### ⭐⭐⭐⭐⭐ Consistent product 👌🏻
*by K***. on October 2, 2025*

Absolutely the Best!

## 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)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-05*