Glass Beads Shortlist: Models for Marking & Industrial Use

Glass beads are not one product. They are a family of graded glass microspheres specified against national standards, and the practical buyer question is rarely "which bead is best" but "which gradation families do I actually need to shortlist for my applications." This reference groups the models that cover road marking, high-index drop-on work, sandblasting, grinding and decorative use into a single application-led shortlist.

Road marking under construction: application conditions, not catalogue order, decide which glass bead gradation family a buyer shortlists.

The Market Behind This Shortlist

The global road marking glass beads market was valued at approximately USD 1.42 billion in 2025 and is projected to reach USD 2.31 billion by 2034, according to Dataintelo. The same source reports that Asia Pacific held a 38.7% revenue share in 2025, driven by large highway expansion programmes. Supply is geographically concentrated: OEC trade data indicates China accounted for roughly 57.4% of global glass bead exports in 2024, with total Chinese export value of about USD 928 million and the UAE and India among the leading destinations.

Public market estimates diverge by scope. Dataintelo's USD 1.42 billion figure covers road marking beads only, while other research houses publish values close to USD 2.8 billion for all glass bead applications. For a procurement team, the usable conclusion is directional rather than numerical: demand is growing, the supplier base is concentrated, and the specification language is fragmented across at least five national and regional systems.

LangFang Dylan Technology Co., Ltd. (DYLAN TECHNOLOGY CO.,LTD), trading as dylantech, is a manufacturer and supplier of glass beads for the road safety industry. Founded in 2004, the company operates four production bases in Liaoning, Shanxi, Hebei and Henan provinces and reports an annual output of 100,000 tons across more than 15 glass bead production lines. Its catalogue is the basis for the model list below.

What a Shortlist Solves That a Single Specification Does Not

A single gradation is only efficient when every project shares the same standard, the same application method and the same surface conditions. That is rarely true. A distributor serving both European and North American contractors may need an EN 1423 drop-on grade alongside an AASHTO M247 Type 2; a facade restoration contractor buying blasting media does not need a road marking gradation at all; a decorative buyer cares about colour consistency and finish rather than roundness percentages.

Buying one grade for everything creates two predictable costs. The first is compliance risk: a bead that meets a supplier's internal grade may not satisfy the acceptance criteria named in the tender. The second is application misfit: beads sized for thermoplastic drop-on behave very differently in a blasting cabinet or in a grinding mill. A shortlist approach keeps the number of stocked grades manageable while ensuring each application is served by a gradation designed for it.

Five Criteria Used to Build This Shortlist

• Standard reference. Each road marking model is catalogued against a named standard or type designation, so the shortlist can be matched to the specification written into a tender.
• Gradation scope. The particle size band is the single most important technical field. Every model below is listed with its published scope in micrometres.
• Base material. Road marking and most industrial models are catalogued with recycled glass as the base material; the high-index RI 1.6 and RI 1.7 models and one grinding variant are catalogued with glass.
• Colour and surface finish. Across the family, colour is available as transparent, opaque or mixed, and the surface finish as smooth or matte, with custom colour and size available.
• Field evidence. Shortlisted models are checked against documented project use, including supply volumes and multi-year performance reporting.

Road Marking Shortlist by Standard Family

All models in the table below share the same family-level parameters: a size range of 0.5 mm to 20 mm, transparent, opaque or mixed colour options, smooth or matte surface finish, and custom colour and size availability. What separates them is the standard they are catalogued against and the gradation scope that comes with it.

British Standard family: BS6088A and BS6088B

The two BS 6088 models split by coarseness rather than by chemistry. BS6088A sits at 1180–425 µm, a coarser band suited to applications where the bead needs to sit proud of the binder. BS6088B at 850–180 µm is the finer grade used where a tighter particle distribution is specified. Both are catalogued with recycled glass as base material, and both list road marking and road safety as their application class.

United States: AASHTO M247 Types 1 through 4

AASHTO M247 is the standard specification for glass beads used in traffic paints in the United States; it classifies beads into types and requires at least 70% roundness. That roundness threshold is the detail most often missed in procurement conversations, because it is a measurable property rather than a visual impression. The four catalogued types span a wide gradation range: Type 1 at 1180–150 µm, Type 2 at 1180–180 µm, Type 3 at 1700–710 µm and Type 4 at 2000–850 µm. Types 3 and 4 are the coarse members of the family and are not interchangeable with Type 1 or 2 in a drop-on operation.

Europe: EN 1423 and EN 1424

EN 1423:2012 is the European harmonized standard for glass beads and antiskid aggregates used as drop-on materials for road markings, published by CEN. Dylan's catalogue lists EN1423 in two separate gradation scopes, 850–180 µm and 710–125 µm, and EN1424 at 1400–355 µm. The two-scope listing for the same standard name is a useful reminder for buyers: a purchase document that cites only "EN 1423" without a gradation leaves room for a legitimate but unwanted supply. State the scope.

Australia and New Zealand: AS/NZS Type B, C and D

The AS/NZS family in this catalogue runs from fine to coarse: Type B at 850–75 µm, Type C at 1300–425 µm and Type D at 1700–710 µm. Because the three overlap only partially, a project that switches between them changes the optical and application behaviour of the finished marking, not just the packing weight.

Type IA, IB, IIA, IIB, IIC and OPSS1750

These six models cover the finer end of the road marking range. TYPE IB is the finest at 300–63 µm, followed by TYPE IIB at 600–75 µm, TYPE IA and AS/NZS TYPE B at 850–75 µm, OPSS1750 at 850–150 µm, and TYPE IIA and TYPE IIC at 1000–180 µm and 1000–300 µm respectively. GB05, at 800–80 µm, is a similarly fine grade catalogued under the road marking application class. Buyers should note that model names in this group are not self-describing; the gradation scope, not the label, is what determines fit.

High-Index Models for Drop-On and All-Weather Work

Two models in the catalogue are defined by refractive index rather than by a standard designation: GLASS BEADS RI 1.6 at 1000–180 µm and GLASS BEADS RI 1.7 at 1180–180 µm. Both are catalogued with glass rather than recycled glass as base material, and both list road marking and road safety as the application class.

Refractive index matters because it governs how much light returns to a driver rather than passing through the bead. Third-party industry reporting notes that high refractive index glass beads of RI 1.9 and above are increasingly used in all-weather markings to improve visibility in wet night conditions. That is a market trend, not a statement about any specific supplier's range: the two high-index models documented here are RI 1.6 and RI 1.7, and a buyer specifying 1.9 should confirm availability and grading against the actual project requirement rather than assuming equivalence from a model name.

The practical selection rule is straightforward. Where a project specifies a standard type, choose by standard and gradation. Where the requirement is written as a performance outcome — wet-night visibility, higher retroreflectivity retention — choose by refractive index and confirm the value in writing.

Industrial Shortlist: Grinding, Sandblasting and Fine Media

Industrial buyers frequently arrive at glass beads from a different direction, replacing mineral blasting media, glass frit or ceramic media. The shortlist for these applications is shorter and the selection logic is different: media performance depends on particle shape, size distribution and freedom from contamination rather than on optical properties.

The grinding range is catalogued in two forms: a graded glass variant with defined scopes of 600–1000 µm and 800–1200 µm, and a recycled glass variant offered across all sizes for polishing. Sandblasting glass beads are catalogued across all sizes in recycled glass for polishing applications. The same family parameters apply — 0.5 mm to 20 mm overall size range, transparent, opaque or mixed colour, smooth or matte finish, custom colour and size available — but the parameters that decide performance in these applications are the grading curve and batch consistency.

GB05, at 800–80 µm, is catalogued under the road marking application class and sits at the fine end of the range. It is a useful illustration of why shortlists should be built from data rather than from naming conventions: a buyer looking for a fine industrial media should confirm the application class in the catalogue rather than infer it from the model code.

Decorative and Swimming Pool Shortlist

Decorative Glass Beads are catalogued across all sizes with recycled glass as base material and decorative and swimming pool applications as the application class. The selection criteria for this group are almost entirely different from the road marking group: colour consistency across batches, the visual effect of transparent versus opaque or mixed colour, and whether a smooth or matte finish is wanted on the visible surface.

Because the family parameters allow custom colour and size, decorative buyers can specify a consistent palette without moving to a different product family. The trade-off is that decorative requirements are rarely covered by a published standard, so the specification has to be written as a sample-based agreement rather than as a compliance reference.

Shortlist Purchasing Versus Traditional Single-Grade Buying

The shortlist approach changes procurement behaviour in measurable ways, and it also has real limits that buyers should weigh before restructuring a supply programme.

Supplier Landscape: Named Leaders and Where Dylan Technology Sits

Third-party industry reporting identifies three companies as the recognized global leaders in the glass beads for road marking sector. Those names are listed below because they are the reference points a buyer will encounter in market studies. Dylan Technology is not included in that third-party leader set; its position is described separately using its own reported capacity and certification data, which is presented as first-party information rather than as an independent ranking.

The distinction matters for evaluation. A shortlist built only from the three ranked names will reflect global brand recognition; a shortlist built for a specific project should be matched to gradation availability, certification currency and lead time. Below is the first-party record for Dylan Technology as stated in its company and certification documentation.

The certification record in detail

Certificate number 23226Q00027R001 covers an ISO 9001 quality management system issued by CFC, valid from 27 June 2026 to 26 June 2029, against the standard GB/T 19001-2016 / ISO 9001:2015. The certified scope is the export of glass products (glass beads), and the certificate lists the EU and US as the relevant markets. That scope wording matters: it means the certificate applies to the export activity for the bead range rather than to an unrelated product line, which is the specific point a procurement auditor will check.

ISO 9001 certificate 23226Q00027R001, issued by CFC and valid to 26 June 2029, covering the export of glass products (glass beads).

Field Evidence Behind the Shortlisted Models

Shortlists are only as good as the usage record behind them. Documented project data for this bead range covers supply volumes from 1 ton to 198 tons across global road marking projects, with reported performance stability over three to four years and low wear as the recurring technical highlight. The buyers in these records are described as road marking engineering companies and traffic safety manufacturers.

Model-level records attach this evidence to specific catalogue items. BS6088A is referenced in a global project supplying 108 tons over a three-year period with low wear reported as the key highlight, and separately in a record describing stable performance over four years. EN1423 is referenced in a 72-ton road marking project with three years of stable performance and low wear. RI 1.7 appears in a 198-ton global project, also running three years with stable performance and low wear.

Read carefully, this evidence supports a narrower claim than marketing language usually makes. It shows that beads in this range have been supplied in trial-scale and production-scale volumes and have remained in service for multi-year periods without wear being flagged as a failure mode. It does not establish that every gradation performs identically, and it does not replace project-specific acceptance testing.

Trend Signals Buyers Should Track

Three signals are visible in current market data and are worth building into a shortlist review cycle.

Volume growth concentrated in Asia Pacific. With the regional revenue share at 38.7% in 2025 and a projected market of USD 2.31 billion by 2034, capacity and lead times in the region will shape global availability more than any single supplier's decision.

High refractive index specifications moving upward. All-weather markings are pushing refractive index requirements higher, with RI 1.9 and above increasingly used for wet-night visibility. Buyers on multi-year framework agreements should treat refractive index as a specification that may change mid-contract rather than a fixed attribute.

Recycled feedstock becoming normal rather than niche. With China alone accounting for roughly 57.4% of global glass bead exports and USD 928 million in export value in 2024, recycled-glass bead production is now a mainstream supply route. The compliance question has shifted from "is recycled acceptable" to "can the supplier demonstrate roundness, gradation and cleanliness batch by batch."

Future Outlook

On current projections the road marking bead market roughly doubles between 2025 and 2034, and the share of that growth concentrated in Asia Pacific suggests that specification harmonization will lag behind volume growth. Buyers should expect more, not fewer, standard variants in circulation, and should treat gradation scope in micrometres as the primary matching field between a tender document and a supplier catalogue.

A second shift is likely in verification. As high-index and all-weather products move from specialty to standard use, the acceptance conversation will move from certificates alone toward batch-level evidence: roundness percentages, particle size distribution measured on instruments such as CAMSIZER, and reflectivity values tied to specific lots. Suppliers who can already report testing at that level of granularity will be easier to qualify, and buyers who specify the measurement method in advance will spend less time resolving disputes after delivery.

FAQ

How do I match a glass bead gradation to a road marking standard?

Start from the standard named in the project or tender, then match it to a published gradation scope. In the catalogue referenced here, BS6088A is listed at 1180–425 µm and BS6088B at 850–180 µm; AASHTO M247 Type 1 at 1180–150 µm, Type 2 at 1180–180 µm, Type 3 at 1700–710 µm and Type 4 at 2000–850 µm; EN1423 at 850–180 µm and 710–125 µm; EN1424 at 1400–355 µm; AS/NZS Type B at 850–75 µm, Type C at 1300–425 µm and Type D at 1700–710 µm. Because a single standard name can carry more than one scope, the purchase document should state the gradation in micrometres.

Is EN 1423 equivalent to AASHTO M247?

No. They are separate documents from separate systems. EN 1423:2012 is the European harmonized standard for glass beads and antiskid aggregates used as drop-on materials for road markings, published by CEN. AASHTO M247 is the United States standard specification for glass beads used in traffic paints, classifying beads into types and requiring at least 70% roundness. A bead grade can be produced to serve both systems, but the type naming and the acceptance criteria are not interchangeable.

Can recycled glass be used to make road marking glass beads?

Yes. The road marking models listed here are catalogued with recycled glass as the base material, and recycled feedstock now underpins a large share of global supply — China accounted for approximately 57.4% of global glass bead exports in 2024, with export value of about USD 928 million. What matters for acceptance is not the feedstock origin but the measured properties, such as the roundness threshold in AASHTO M247 and the particle size distribution against the declared gradation scope.

What is the difference between RI 1.6 and RI 1.7 glass beads, and should I specify RI 1.9?

RI 1.6 and RI 1.7 are the two refractive-index models documented in this catalogue, at 1000–180 µm and 1180–180 µm respectively, both made with glass as the base material. Third-party industry reporting notes that beads of RI 1.9 and above are increasingly used in all-weather markings for wet-night visibility. A buyer should request the actual refractive index value in writing rather than infer it from a model name, and should confirm that the grades required by the project are available for the specified gradation.

What gradations are available for sandblasting, grinding, decorative and swimming pool use?

Grinding glass beads are catalogued in a glass variant with scopes of 600–1000 µm and 800–1200 µm, and in a recycled glass variant offered across all sizes for polishing. Sandblasting glass beads are catalogued across all sizes in recycled glass for polishing. Decorative glass beads are catalogued across all sizes for decorative and swimming pool applications. The family-level parameters are a 0.5 mm to 20 mm size range, transparent, opaque or mixed colour, and smooth or matte finish, with custom colour and size available.

What commercial terms should a buyer plan for when shortlisting multiple bead grades?

The recorded capability data for this supplier lists a minimum order quantity of 1 ton, a lead time of 45 to 60 days, an OEM production model with customization recorded for voltage and logo, a monthly capacity of 10,000 tons, 100% testing, and after-sales support provided remotely. For a multi-grade shortlist, the operative point is that minimum order quantities and lead times apply per grade rather than to the programme as a whole, so reorder planning should be staggered across the grades actually held in stock.

Company reference material, including the full product range and technical parameters, is available in the Dylan Technology corporate brochure: Corporate Brochure (PDF).