EXPOLISH Technical Product Catalogue

Advanced Polishing Materials for Precision Surfaces.

A comprehensive range of aluminum oxide, cerium oxide, zirconium oxide and colloidal silica products engineered for demanding finishing applications - from automotive clearcoats and optical glass to sapphire substrates and metal polishing.

Explore Applications ↓ Technical Specifications

AutomotiveMarineAerospaceOphthalmicPrecision OpticsDisplaySapphireMetals

Performance By Design

Controlled particles. Predictable finishing.

The source catalogue emphasizes particle-size distribution, particle hardness and classification as key levers for balancing stock removal, haze control, surface quality and process stability.

Controlled particle size

Narrow, carefully controlled particle-size distributions are used to optimize cutting performance and surface finish.

Tailored hardness

Particle hardness is selected or controlled for different substrates, polishing systems and throughput requirements.

Powder & slurry options

Product families include powders and ready-to-use or concentrated slurries, depending on the application.

Process-oriented performance

Catalogue benefits include stable viscosity or Baumé, low dust or foam, easy cleaning, suspension stability and long service life where specified.

Application Portfolio

Materials for eight demanding finishing environments.

Jump directly to an application area. Every technical table below reproduces the values presented in the source catalogue.

Automotive

Clearcoat & paint finishes

Aluminum oxide polishing bases from fine finish to high cut.

Automotive Glass

Windshields, windows & mirrors

Cerium oxide powders and slurry for haze-removal polishing.

Marine

Gelcoat finishing

High-cut aluminum oxide options for boats, yachts and marine craft.

Aerospace

Cabin transparencies

Aluminum oxide materials targeting clarity and structural-quality surfaces.

Ophthalmic

Prescription & sun-wear lenses

Aluminum-oxide slurries and cerium-oxide lens-polishing materials.

Precision Optics

Glass & ceramic optics

Cerium and zirconium oxide product families with tightly controlled particles.

Display & Sapphire

Display glass & sapphire substrates

Fine-particle materials for cover glass, LED substrates and sapphire.

Metal Polishing

Molds, stainless, aluminum & alloys

Colloidal silica and aluminum oxide slurry solutions.

Quick model finder

Search the specification tables by product code or value, for example “DS605”, “YL-97”, “40%” or “10.5-11.5”.

Technical Catalogue

Detailed product specifications.

Units, ranges and inequality signs are reproduced from the catalogue. Where the source does not provide a value, an em dash is used.

Aluminum Oxides for Automotive Finishes

Aluminum oxide powders are presented as a base for polishes and glazes used on automotive clearcoat finishes across OEM, body-shop, detailing and DIY applications. Particle size and hardness can be tailored to formulation needs. The catalogue highlights controlled particle-size distribution for cut/finish balance, stable viscosity, good handling, low dusting, easy cleaning, compatibility with natural and synthetic pads, and use with both rotary and dual-action polishers.

Automotive Clearcoat

Type	Cut Rate 10 = High	Haze 1 = Low	Hardness 10 = Hard	D50 (μm)	D100 (μm)	Solids Content	pH (15%)
Fine Polish
YL-97	2	1	2	0.3-0.5	<3	29-31%	6.5-8.5
YL-98	2	1	2	0.8-1.0	<8	29-31%	6.5-8.5
YL-37	3	1	5	0.9-1.3	≤10	29-31%	8.0-10.0
YL-20	4	2	2	1.4-1.6	≤10	29-31%	10.5-11.5
DA 106S	4	2	2	1.4-1.6	≤10	29-31%	7.0-9.0
YL-14	2	2	4	1.3-1.7	≤10	29-31%	8.0-10.0
YL-15	3	2	5	1.3-1.7	≤10	29-31%	8.0-10.0
Good Cut / Fine Finish
YL-72	3	3	3	2.0-2.4	≤20	29-31%	8.0-9.5
YL-11	4	3	3	2.5-3.5	<15	Powder	9.5-10.5
YL-13	5	3	5	3.1-6.1	<50	Powder	9.5-10.5
YL-9	5	3	7	3.0-4.5	≤15	Powder	8.0-10.0
Rapid Cut / Good Finish
DA 089 P	6	3	8	5.0-7.0	≤40	Powder	8.0-10.0
YL-2	6	5	8	6.0-9.0	≤50	Powder	9.0-11.0
YL-81	7	4	8	8.0-10.0	≤50	Powder	8.0-10.0
YL-3	7	4	7	9.0-12.0	≤60	Powder	9.0-11.0
High Cut
DA 096 P	8	4	6	8.0-11.0	≤50	Powder	8.0-10.0
DA 087P	8	5	7	8.0-11.0	≤50	Powder	8.0-10.0
DA 097P	8	5	8	8.5-11.5	≤50	Powder	7.5-9.5
YL-24	8	6	8	11-14	≤75	Powder	9.0-10.5
YL-38	9	7	8	28-32	≤100	Powder	8.0-10.0

Cerium Oxides for Automotive Finishes

Cerium oxide is presented as a polishing base for removing haze from windshields, windows and mirrors, with both powder and slurry forms represented.

Automotive Glass

Product	Form	D50 (μm)	Dmax (μm)	pH	Hardness
C-2	Powder	7	28	8-10	Medium
C-3	Powder	12	40	8-10	Medium
C-7	Powder	12	40	8-10	Hard
C-8	Powder	5	20	8-10	Medium
C-9	Slurry	3	15	8-10	Soft

Aluminum Oxides for Marine Gelcoats

Designed for compounds and polishes used on marine gelcoats across water-sports craft, fishing boats, recreational and commercial vessels, military power boats, sailboats and yachts. The catalogue positions these grades for high cut rates and improved throughput while maintaining a smooth finish.

Marine Gelcoat

Type	Cut Rate 10 = High	Haze 1 = Low	Surface Area (m²/g)	D50 (μm)	D100 (μm)	Solids Content	pH (15%)
Fine Polish
YL-12	2	1	30-40	0.9-1.2	≤10	29-31%	10.5-11.5
YL-17	3	2	20-30	1.9-2.1	≤20	29-31%	10.5-11.5
Good Cut / Fine Finish
YL-8	5	3	20-30	2.3-3.5	≤25	Powder	10.0
YL-1	5	3	15-25	3.5-5.0	≤30	Powder	9.0-11.0
Rapid Cut / Good Finish
YL-2	7	5	5-10	6.0-9.0	≤100	Powder	9.0-11.0
YL-19	6	4	20-30	7.5-8.5	≤90	29-31%	9.5-10.5
YL-3	7	4	10-15	9-12	≤100	Powder	9.0-11.0
High Cut
YL-7	8	7	9-14	11-15	≤100	Powder	9.0-10.5
YL-4	7	8	5-10	15-18	≤100	Powder	8.0-10.0
YL-5	8	7	15-20	17-22	≤100	Powder	10

Aluminum Oxides for Aerospace

Formulated aluminum oxide slurries and powders are presented for cabin transparencies in private, commercial and military aircraft. The source catalogue emphasizes continuous control of particle hardness and particle-size distribution to produce defect-free transparent surfaces with clarity and structural stability.

Aerospace Transparency

Type	Cut Rate 10 = High	Haze 1 = Low	Surface Area (m²/g)	D50 (μm)	D100 (μm)	Solids Content	pH (15%)
Fine Polish
YL-12	2	1	30-40	0.9-1.2	≤10	29-31%	10.5-11.5
YL-17	3	2	20-30	1.9-2.1	≤20	29-31%	10.5-11.5
Good Cut / Fine Finish
YL-8	5	3	20-30	2.3-3.5	≤25	Powder	10.0
YL-1	5	3	15-25	3.5-5.0	≤30	Powder	9.0-11.0
Rapid Cut / Good Finish
YL-2	7	5	5-10	6.0-9.0	≤100	Powder	9.0-11.0
YL-19	6	4	20-30	7.5-8.5	≤90	29-31%	9.5-10.5
YL-3	7	4	10-15	9-12	≤100	Powder	9.0-11.0
High Cut
YL-7	8	7	9-14	11-15	≤100	Powder	9.0-10.5
YL-4	7	8	5-10	15-18	≤100	Powder	8.0-10.0
YL-5	8	7	15-20	17-22	≤100	Powder	10

Aluminum Oxide for Ophthalmic Lens Polishing

Two ophthalmic polishing slurries are presented for prescription-lab production. DA012S is designed for digital systems and can also be used as an all-in-one slurry; DA021S is positioned as a lower-cost choice for traditional or conventional surfacing. The catalogue cites proprietary particle/formulation methods, brilliant scratch- and haze-free surfaces across lens types, Baumé stability, low foam, easy cleaning and long life in high-volume slurry systems. Both are available for private labeling.

Ophthalmic Lenses

OptimAL DA012S

A high-Baumé plastic polish designed for high cut rate and surface quality on digital polishing systems. It is supplied as a fully formulated, ready-to-use slurry and is described as delivering high cut rates on CR39, mid- and high-index lenses and acrylics, with surface quality suitable for AR coating.

Abrasive

Aluminum Oxide slurry

Baumé

26.5° ± 1

3.0-4.0

Packaging

4 gallons per case
5 gallon pails

OptimAL DA021S

A mid-value plastic polish designed for traditional/conventional polishing systems. The source describes good cut rate and surface quality at lower cost for price-sensitive markets, with better suspension and life and less foam than other traditional products.

Abrasive

Aluminum Oxide slurry

Baumé

24° ± 1

3.0-4.0

Packaging

4 gallons per case
5 gallon pails

Cerium Oxide for Ophthalmic Lenses

Cerium oxide products are offered for polishing glass lenses used in prescription, reading and sun-wear applications. The catalogue states that these materials are suited to both low- and high-speed polishing and work with a variety of polishing pads.

Glass Lenses

Parameter	Unit	Typical Data	LSL	USL
D50	μm	1.43	1.0	2.0
D97	μm	5.45	—	7
Bulk density	g/cm³	1.64	1.4	1.8
pH	—	7	6	8

Cerium Oxide for Precision Optics - Slurry Grades

Precision optics covers a wide range of glass types and processes. The catalogue offers multiple cerium-oxide powders and slurries, starting from custom-designed raw materials and particle formation methods intended to produce consistent particle shape and hardness.

Precision Optics

Type	D50 (μm)	D97 (μm)	Concentration (wt.%)	pH	Typical SR on 9B (mg.)
D605S	0.8-1	5.0	50%	8.0-10.0	153
DS605	0.3-0.5	<2.0	30%	6.0-9.0	147
DS606	1.4-1.6	<7.0	30%	6.0-9.0	145
TJX-438	0.5-0.7	<4.0	30%	10-10.5	—
DS650	0.6-0.8	<6.0	45%	9.5-10.0	108
DS670	0.3-0.5	<6.0	15%	6.0-8.0	—
FCYA11	0.4-0.6	1.0-1.5	40%	7.0-9.0	132
FCYA12	0.15-0.3	0.6-0.9	40%	8.0-10.0	111
FCYA13	0.6-0.8	4-5	40%	8.0-10.0	133
FCYA14	0.3-0.5	1.5-3	40%	8.0-10.0	132
FCYA15	0.35-0.55	1-3	40%	9.0-11.0	146
FCYA17	0.4-0.6	1-3	40%	9.0-11.0	115

Cerium Oxide for Precision Optics - Powder Grades

The catalogue states that particle-size reduction and classification are used to produce narrow particle-size distributions and eliminate oversize particles that can cause scratches and defects.

Narrow Distribution

Type	TREO (%)	CeO₂ / TREO (%)	D50 (μm)	Concentration (wt.%)	pH	Suspension
CA 1603	/	/	1.0-2.0	100%	6.8-8.0	Yes
TJP621	91-97	65-72	1.8-2.2	100%	6.0-10.0	Yes
TJW001	≤95	≤98	0.6-1.1	100%	6.0-9.0	Yes
TJW002	≤95	≤98	1.2-1.4	100%	6.0-8.0	Yes
TJP905	≤90	≤98	2-3	100%	6.0-8.0	Yes
TJP685	>85	>60	0.4-0.6	100%	6.0-9.0	Yes
TJP824	>85	>60	0.4-0.6	100%	6.0-9.0	Yes
TJP825	>85	>60	1.2-1.6	100%	9.0-10.0	Yes

Catalogue fidelity note: the TREO and CeO₂/TREO inequality signs above are intentionally reproduced exactly as shown in the supplied catalogue.

Zirconium Oxide for Precision Optics

These zirconium oxides are presented for producing very fine surface finishes on glass and ceramic substrates. The source describes statistical process control for consistent particle hardness and proprietary classification for narrow particle-size distributions, high stock removal and scratch-free surface quality. Powder or slurry supply is stated as available.

Glass & Ceramics

Type	D50 (μm)	Concentration (wt.%)	pH	Color	Suspension
DZr-O	1.4-1.6	20	5-6	Pink	Yes
DZr-P	1.4-1.6	25	6-7	Pink	Yes
DZr-P1	1.6-1.8	28	6-7	White	Yes
DZr-H11	1.4-1.6	20	11-13	White	Yes
FY103	0.9-1.2	25	6-7	Pink	Yes
FY104	0.9-1.2	25	6-7	White	Yes
DS627	0.3-0.5	20	11-13	White	Yes

Cerium Oxide for Display Glass

For glass substrates ranging from large LED displays to mobile-phone cover glass, the catalogue presents cerium- and zirconium-oxide polishing materials designed around tightly controlled particle hardness, high throughput and high yield, with the objective of minimizing polishing cost per finished piece.

Display Glass

Type	Solids (% by wt.)	D50 (μm)	D97 (μm)	pH	TREO (% by wt.)	CeO₂/TREO (% by wt.)
DS603	40%	0.3-0.6	≤2	9-10	≥85%	≥60%
DS605	50%	0.8-1.0	≤4	9-10	≥90%	≥60%
DS607	40%	0.7-0.9	≤3	9-10	≥90%	≥60%
DS615	40%	0.2-0.4	≤2	11.5-12.5	≥95%	≥99%
DS623	10%	0.5-0.7	≤7	11-13	≥85%	≥60%
DS601	40%	0.1-0.3	≤1	9-11	≥85%	≥60%

Aluminum Oxide & Colloidal Silica for Sapphire Substrates

Aluminum oxides are presented as a base for sapphire-substrate polishing slurries. The catalogue states that thermal treatment in electronic-specification kilns produces aggressive particles for this demanding application.

Sapphire Substrate

Type	Form	D50 (μm)	Dmax (μm)	pH	Alpha Al₂O₃
SA-0.3	Slurry	0.3	1.2	8-10	100%
SA-0.5	Slurry	0.5	1.5	8-10	100%
SA-0.7	Slurry	0.7	1.8	8-10	100%

Type	Form	D50 (μm)	pH	Hardness
S-5	Slurry	50	10.5-11.5	Medium
S-7	Slurry	70	10.5-11.5	Medium

Colloidal Silicas & Aluminum Oxides for Metal Polishing

Colloidal silica and aluminum oxide slurries are presented for polishing metal molds used by the plastics and optics industries, as well as stainless steel, aluminum and various alloys. A range of particle hardnesses, shapes and sizes is offered, with specialty formulations available for enhanced performance.

Metal Finishing

Type	Form	D50 (nm)	pH	Specific Gravity (g/ml)	SiO₂
TJX-560-80	Slurry	70-95	10.5-11.5	1.1-1.2	20%
TJX-560-100	Slurry	90-120	10.5-11.5	1.1-1.2	20%
TJX-630-80	Slurry	70-95	10.5-11.5	1.4	30%

About EXPOLISH

Polishing materials and surface-finishing technology from Hangzhou, China.

EXPOLISH is the brand of Hangzhou Explore Polishing Technology Co., Ltd., focused on polishing materials, advanced abrasives, surface-functional materials and related finishing technologies for industrial and professional applications.

Company Identity

Our registered business scope includes new-material technology R&D, rare-earth functional materials, surface-functional materials, specialty chemical products excluding hazardous chemicals, non-metallic mineral products, electronic materials, machinery R&D and sales, as well as import and export activities.

BrandEXPOLISH

English Legal NameHangzhou Explore Polishing Technology Co., Ltd.

Chinese Legal Name杭州探索抛光技术有限公司

Unified Social Credit Code91330114MAKJMCT16A

Registration No.330114000734317

EstablishedAugust 7, 2026

Company TypeLimited Liability Company (Sole Natural-Person Ownership)

Registration AuthorityQiantang District Administration for Market Regulation, Hangzhou

Contact & Registered Address

Hangzhou Explore Polishing Technology Co., Ltd.

杭州探索抛光技术有限公司

Registered Address · EN Room 618, Block B, Building 7, No. 616 Dongwei Road, Hezhuang Subdistrict, Qiantang District, Hangzhou, Zhejiang, China

注册地址 · 中文 浙江省杭州市钱塘区河庄街道东围路616号7幢B座618室

Emailinfo@expolish.com

Corporate Websitewww.expolish.com

Technical Websiteceriumoxide.org

The address shown above is the company’s registered address. Product specifications should be confirmed for the current grade, application and commercial order before use.