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
Material identity
Hollow Glass Microspheres — identifiers and the names buyers use
- Material type
- Hollow borosilicate-type glass microspheres
Also searched as
Industry terminology
Identifiers are published for material identification. The exact specification of any offered grade is confirmed against supplier documentation at quotation.
Buyer intent coverage
Hollow Glass Microspheres — what it is, where it is used, how it is chosen
Hollow glass microspheres reduce the density of a resin or cementitious system without the coarse texture of a lightweight aggregate. Composite fabricators use them in fairing and syntactic systems, and cultured marble and decorative producers use them to lighten castings. The property that governs selection is crush strength: the spheres have to survive the mixing and processing pressures of the shop, and that is a supplier-declared value for each product.
Primary uses
- Density reduction
- Resin extension
- Syntactic filling
Applications
- Lightweight resin castings and syntactic systems
- Tooling pastes and fairing compounds
- Lightweight decorative and prop casting
- Coatings and putties requiring low density
Advantages
- Reduces density while keeping a fine, smooth texture that coarse aggregates cannot deliver
- Extends resin volume, which affects both weight and material cost per part
- Works in both polymer and cementitious systems within the supplier's stated limits
Limitations to consider
- Spheres crush under excessive mixing or processing pressure, which destroys the benefit being paid for
- Very low bulk density makes handling, dust control and freight economics awkward
- Crush strength, density and loading limits are declared by the supplier for the exact product
- Dosage, addition rate, water content and binder proportions are decided by your own mix design and trial batches, not by a catalogue figure. Supplier literature ranges are a starting point for that development work and are not reproduced here as a specification.
- Mix ratio, pot life, working time, demould time, full-cure schedule, hardness, tear strength, elongation, shrinkage, viscosity and temperature resistance are properties of one specific supplier system. They are never quoted here from memory or by analogy with a similar product; they are read from the supplier data sheet for the exact material offered and confirmed at quotation.
How to choose the right grade
- Start from the element being produced and the specification it has to satisfy, because binder, aggregate and admixture choices are decided together rather than one at a time
- State the placing method — poured, vibrated, sprayed or pressed — since rheology requirements follow from it
- Describe the curing regime and the plant conditions, including whether production continues through a Canadian winter
- State the processing pressures and mixing energy in your process so crush strength is matched to them
- Confirm the resin or matrix system the spheres will be dispersed into
- Mould-making and casting behaviour depends on the pattern, the shop temperature and humidity, the mixing method and the operator. A production-representative trial on your own pattern and in your own shop conditions is the only honest way to qualify a material before a run is committed.
- Exact specification is confirmed against supplier documentation at quotation.
Typical grades
- Products the supplier classifies by density and crush strength
- Surface-treated products where matrix compatibility requires them
- Buyers search this category by grade name, and those names describe what the workshop needs rather than what is asserted here. Which grade a specific offer corresponds to, and what the supplier declares for it, is read from the technical documentation issued for the exact material quoted.
- Materials in this category interact: rubbers, releases, sealers, resins, pigments and fillers can inhibit cure, stain a surface or shorten mould life when they are combined outside the combinations the supplier has tested. State every material already in the process at enquiry so compatibility is checked against supplier documentation rather than discovered on the shop floor.
- Reactive materials age in the container, and moisture-sensitive systems age faster once opened. Order against real consumption rather than against a discount, and confirm the shelf life the supplier states for the exact product and pack.
Comparable materials — how Hollow Glass Microspheres sits against alternatives
- Mineral fillers where density is not a constraint
- Expanded glass where a coarser, lower-cost lightweight is acceptable
- Shops looking for an alternative, replacement or second-source supplier should state the incumbent product, the supplier system currently approved and the property being matched. Equivalence on family name alone is not equivalence in production: cure profile, surface behaviour, colour and release characteristics all shift between sources, so a side-by-side trial is planned before a changeover.
Comparable-material reference. Grade selection is confirmed at RFQ against your process.
Procurement coverage
How to specify, order and receive Hollow Glass Microspheres
Written for procurement, quality and technical buyers in Canada and the United States. No numeric price, MOQ, stock or lead-time value is published — those are confirmed per shipment in the quotation and against the confirmed batch.
How buyers specify at RFQ
- The exact product identity and supplier system the shop needs, including the component set for a multi-part system
- The process it will be used in, and the equipment used to mix, pour, spray or apply it
- The pattern, mould or substrate it will contact, and every other material already in that process
- The properties the supplier must declare on the data sheet for your application
- The documentation set required before the material can enter production
- Exact specification is confirmed against supplier documentation at quotation.
Packaging options (industry-standard)
- Bag formats are the usual option for powders and dry blends
- Bulk bag (FIBC) formats are used by producers running continuous volume
- Smaller pails or boxes are used where the material is dosed in small quantities
- Packaging options and available pack sizes are confirmed with each quotation.
Storage & handling
- Store sealed, dry and off the floor; humidity swings change the behaviour of powders and dry blends
- Segregate from incompatible chemistry and protect from contamination by other powders in the shop
- Control dust at transfer points in line with the safety data sheet for the product
- Rotate stock by receipt date and record the lot used against each production batch
- Canadian winter transport and storage matter here: several materials in this category thicken, crystallise, freeze or lose performance at low temperature, and recovery behaviour after freezing is product-specific. Confirm cold-weather handling and shop conditioning guidance against the supplier documentation before a winter delivery.
- This category includes reactive chemistry, respirable mineral dust, peroxides and solvent-borne products. Ventilation, personal protection, segregated storage and disposal requirements come from the safety data sheet for the exact product and from the requirements of the provincial regulator for your site.
Documentation available
- Technical data sheet (TDS) for the exact product offered, stating working properties as the supplier declares them
- Safety data sheet (SDS) in the format required for Canadian import, in English and French where the receiving site requires it
- Certificate of analysis (COA) or batch documentation where the supplier issues it for the confirmed lot
- Handling, mixing and storage instructions issued by the supplier for the exact system
- Test reports or conformity statements where the project specification requires them and the supplier issues them
- Documentation is confirmed per batch at quotation; availability depends on the grade and supplier offered.
- Ask for the documentation pack against the exact product at the enquiry stage rather than after the order. Documentation availability differs by supplier and by manufacturing site, and in this category the data sheet is the only place where the working properties of a system are legitimately stated.
RFQ checklist for hollow-glass-microspheres-canada
Include these fields to receive an accurate Canada-landed quotation
- The exact product or supplier system required, and the incumbent it is replacing where there is one
- The process, equipment and shop conditions the material will be used in
- Volume per order and expected annual usage, so the offer is built on real consumption
- Pack format your shop or plant can physically receive and handle
- Documentation required before the material can be used in production
- Delivery province or receiving location in Canada
- The mix design the material enters, and the role it plays in that mix
- The element produced and the specification or project requirement it is built to
- Consumption per batch and expected annual volume, so bulk versus bagged supply can be compared
- Landed cost in Canada is driven by pack format, delivery province and receiving arrangements as much as by unit price, and dense mineral products and dilute liquids both carry weight that is not function. Quotations are compared delivered to your shop or plant rather than ex-works.
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.
Technical knowledge for Hollow Glass Microspheres Supplier — Canada
Engineering and purchasing guidance written for this material — understand it, apply it, compare options, specify a grade, and fix production problems.
Comparison Articles
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.