Custom Polishing Fluid Complete Precision Polishing Solution for CD Discs

HOT PRODUCTS： 二合一研磨液氧化硅抛光液氧化铈抛光液

Case Overview

CD discs are primarily fabricated from soft polycarbonate (PC) plastic or glass substrates, topped with an aluminum reflective data coating. Laser data playback demands ultra-high standards for surface smoothness and flatness.
Our  custom CD polishing fluid represents the premium option for damage-free, durable CD surface finishing. Built on CMP (Chemical Mechanical Planarization) chemo-mechanical polishing mechanism, it effectively eliminates prevalent faults such as surface scratches, haze, disc skipping, choppy playback and laser reflection malfunction.
For this polishing project, the customer implemented our recommended MYH-SOP315 CD-specialized polishing fluid. The product removes the flawed outer surface layer while offering full protection to the inner aluminum reflective film of CD media. No damage will be caused to the laser signal layer, completely resolving all surface-related defects encountered.

Before & After Polishing

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Left: Before Polishing

The CD surface is covered with micro scratches and large-area hazy oxidized tarnish, resulting in turbid light transmission across the disc. Such surface defects block the laser optical path during data reading, triggering disc skipping, playback stuttering and disc recognition failure. The disc suffers severe surface abrasion with a dull gray appearance.

Right: After Polishing with Mingyanhai Specialized Polishing Fluid for CDs

The disc instantly restores a crystal-clear mirror finish. All micro scratches, abrasions and surface haze are completely removed. Surface flatness is greatly improved, with no whitening, corrosion or secondary scratches generated on the polycarbonate substrate.
The optical performance of the aluminum reflective layer is fully restored, enabling smooth and uninterrupted disc reading. The disc features brand-new luster and pure light transmittance, achieving the mirror-grade optical effect of a brand-new CD.

Industry Professional Term Explanations


Product Advantages

Material Performance Comparison (CD-Optimized Formula)

❌ Diamond polishing slurry: Excessively high abrasive hardness induces irreversible micro-scratches on soft polycarbonate substrates, resulting in permanent disc failure and complete scrappage.
❌ Ceria-based polishing slurry: Features strong alkaline corrosiveness, which causes PC substrate whitening, surface degradation, and erosion dissolution of the aluminum reflective data layer.
✅ Custom CD dedicated polishing fluid: Adopts mild soft-abrasive CMP polishing mechanism to achieve zero-substrate-damage and ultra-high surface uniformity. Delivers superior finished yield and full compatibility with plastic-base CDs and glass-substrate CD/DVD media.

Core Technical Advantages of SOP315 Specialized Polishing Fluid for CD Restoration

1. Zero-damage restoration with intact functional data layer Formulated with weakly alkaline, substrate-friendly chemistry and precisely controllable material removal rate. The fluid only removes the defective micro-layer on the PC protective coating without substrate penetration, effectively preventing corrosion or structural damage to the inner aluminum reflective data film.
2. Precision mirror-level optical restoration Uniform spherical monodisperse abrasives enable homogeneous ultra-fine planarization. The treated surface roughness stabilizes at Ra ≤ 0.5 nm, fully recovering the original laser reflectivity and optical flatness of optical discs.
3. Low-residue formulation with excellent rinsability Agglomeration-free particle design eliminates residual particle accumulation. Post-polishing residues can be thoroughly cleaned with deionized water, avoiding light scattering and laser path obstruction caused by micro-residues.
4. Broad optical media adaptability Substrate-optimized formula fits the protective layer repair of CD, DVD and Blu-ray discs. No substrate whitening, surface distortion or disc warpage occurs after processing, ensuring stable and consistent optical performance.

Polishing Slurries

Customized Slurry

Professional customized polishing slurry solutions tailored to your specific processing needs, material characteristics and process parameters, delivering optimal and consistent polishing performance.
Customized Slurry
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