Hollow Glass Microspheres — Low Density Functional Filler
Allzone Trading supplies hollow glass microspheres to casting resin formulators, composite fabricators, cultured marble producers and coatings manufacturers across Canada. Microspheres reduce density and shrinkage in resin systems while keeping the mix pourable, which is why they are standard in syntactic and lightweight cast products. Crush strength, density and particle size are confirmed against supplier technical data at quotation.
At a glance
- Product
- Hollow Glass Microspheres
- Grades
- Confirmed at quotation
- Typical applications
- Lightweight polyurethane and epoxy castings · Syntactic foam and buoyancy materials · Cultured marble and cast polymer products
- Packaging
- Packaging and pack size confirmed at quotation against the grade supplied
- • Certificate of Analysis is provided against the confirmed shipment, grade and batch.
- • Manufacturer TDS and SDS are subject to grade and supplier confirmation and are available on request.
- • Grades, packaging and origin above are indicative sourcing options and are confirmed at quotation.
Available grades from container-direct sourcing
Typical applications
- Lightweight polyurethane and epoxy castings
- Syntactic foam and buoyancy materials
- Cultured marble and cast polymer products
- Tooling boards, pastes and fairing compounds
- Lightweight coatings and surfacing films
- Weight reduction in composite laminates
Why Canadian buyers choose us
- Enquiries handled against your part, mould and process — not a fixed stock list
- Grade, working properties and mix data confirmed in writing before order confirmation
- Supplier technical data sheet and safety data sheet provided for the grade actually offered
- LTL and FTL freight to studios, precast plants, fabricators and distributors across Ontario, Quebec and Western Canada
- Quantities reviewed per enquiry, from trial kits through to pallet and container programmes
Typical industries served
Technical & procurement detail
Weight down without foaming the part+
Chemical foaming creates open structure and unpredictable surfaces. Microspheres lower density while keeping the casting solid, machinable and dimensionally stable, which is why appearance and tooling parts use them instead of blown foam.
Crush strength is the selection criterion+
Spheres that survive hand mixing may collapse under pressure casting or high-shear dispersion, and collapsed spheres simply become dense filler. Grade selection starts from the processing pressure the material will actually see.
Viscosity and loading limits+
Microspheres raise viscosity quickly, so there is a practical loading ceiling before the mix stops pouring. Formulators balance loading against the process and often combine microspheres with a low-viscosity resin to keep the system workable.
Specification options+
Working properties are configurable options within this canonical product, not separate products. Depending on the family, that can include grade, viscosity, mix ratio, pot life and demould time, hardness, colour, particle size or fibre length, and pack format. No configuration is presented as stocked or approved until it is confirmed against the supplier's technical data for the exact material offered. Supplier grade names, factory codes and manufacturer brands are not published here.
What to include in your enquiry+
Tell us the resin system, processing method and pressure, target density, monthly volume and delivery location.
Frequently asked questions
How much density reduction is possible?+
It depends on loading and the base resin, and is established by trial rather than presented as a general figure.
Are surface-treated grades available?+
Surface treatment and particle size are specification options confirmed against supplier technical data for the grade offered.
Are technical documents provided before ordering?+
Yes. The supplier technical data sheet and safety data sheet for the exact grade offered are provided with the quotation, and the working properties in those documents govern — not any general description on this page.
What quantities are quoted?+
Quantities are reviewed per enquiry, from trial quantities through to pallet and full container programmes for production users and distributors.
Related products
Materials commonly quoted alongside Hollow Glass Microspheres by the same plants.
White Portland Cement
Cast stone and architectural precast units
Calcium Aluminate Cement
Rapid-set repair mortars and patching compounds
Silica Fume (Microsilica)
Anti-caking and free-flow agent — gFRC mixes for improved density and reduced permeability
Need a quote on Hollow Glass Microspheres?
Request pricing, TDS/SDS and available documentation. We usually acknowledge enquiries within one business day; samples are subject to supplier availability and product classification.