Silicone light diffuser, drop-in equivalent to Shin-Etsu KMP-590, is micron ultra-fine white powder. It fully matches KMP-590 performance, 400℃ heat resistant no yellowing, ideal for PC/PMMA LED lampshades, free samples.

Product Detail

Silicone Light Diffuser (Equivalent to Shin-Etsu KMP-590)

Product Overview

This product is a cross-linked polymethylsilsesquioxane spherical micro-powder developed as a direct drop-in equivalent to Shin-Etsu KMP-590. It is produced with the same synthesis process and narrow particle size control technology as imported equivalents, with all key optical, thermal and processing performance indicators fully matching KMP-590. It solves the common pain points of long lead time, high cost and unstable supply of imported KMP-590, and is the preferred light diffusion additive for LED and optical plastic manufacturers looking to reduce formula costs without sacrificing product performance.

Core Advantages

1:1 Full Performance Match with KMP-590
The product shares identical average particle size, particle size distribution, refractive index and surface treatment with Shin-Etsu KMP-590, with D50 particle size controlled at 2.0μm and refractive index of 1.43. Light transmittance, haze value and diffusion effect are fully consistent with KMP-590. It can be added directly to existing formulations without adjusting process parameters or addition ratios, and finished product performance shows no difference from parts made with imported KMP-590.
Consistent High Thermal Stability
The three-dimensional cross-linked Si-O-Si structure delivers heat resistance over 400℃, matching the thermal performance of KMP-590. No decomposition, yellowing or black spots appear during high-temperature processing of PC, PMMA and other engineering plastics, and finished products resist yellowing even after long-term continuous use.
Excellent Compatibility & Dispersibility
Regular spherical microstructure and matching surface treatment ensure good compatibility with PC, PMMA, PS, MS and other transparent resins. It disperses evenly in base materials without agglomeration, does not reduce impact strength, tensile strength or other physical properties of finished parts, and will not cause crystal points, white spots or other appearance defects.
Significant Cost & Supply Advantages
On the premise of identical performance, the cost is 30%-40% lower than imported KMP-590. We maintain year-round bulk stock with fast delivery, avoiding supply risks caused by imported logistics delays, customs clearance or supply shortages, to effectively reduce raw material costs for manufacturers.
Reliable Batch Consistency
Fully automatic closed production lines ensure stable particle size distribution, whiteness and impurity content across all batches, with minimal batch-to-batch variation, avoiding unstable light diffusion effects caused by raw material fluctuation.

Typical Performance

The product appears as pure white ultra-fine spherical powder without obvious agglomeration, with whiteness over 95, volatile matter below 1% after 2 hours of drying at 105℃, and no coarse particles over 10μm. All indicators meet optical grade requirements, aligned with Shin-Etsu KMP-590 factory inspection standards. It complies with EU RoHS and REACH environmental regulations, suitable for export-oriented lighting and optical products.

Recommended Applications

It is suitable for all application scenarios of Shin-Etsu KMP-590, including but not limited to PC/PMMA LED lampshades, bulb shells, LED light tubes and panel light diffusers; optical diffusion films, light guide plates and display diffusion sheets; light diffusion masterbatch for transparent resin modification; matte coatings, inks and paint additives to improve soft focus effect and hand feel; and other optical plastic products requiring anti-glare light diffusion.

Usage Guidelines

As a direct drop-in replacement, you can replace KMP-590 with this product at equal weight directly, with no need to adjust original formula ratios, addition amounts, processing temperatures or mixing processes, for identical finished product results.

For new formula development, the recommended addition rate is 0.5%-2% for plastic modification, adjusted according to required haze and transmittance; for coating and ink applications, a 3%-8% addition rate is recommended, adjusted according to required matte effect. It can be directly mixed with resin or added in masterbatch form, suitable for conventional injection molding, extrusion, coating and other processing processes.

We provide free samples for side-by-side testing with KMP-590, and offer technical support for formula adjustment during the trial period.

Packaging & Support

Products are packed in 20kg moisture-proof kraft paper drums with sealed PE inner bags; 1kg small packages are also available for sample testing. Store in a cool, dry, ventilated area, seal promptly after opening, with a 24-month shelf life under proper storage conditions.

We hold bulk stock year-round, with bulk order lead time within 3 working days. We provide full technical documents including TDS, MSDS and COA, and support third-party testing. Customized particle size or surface treatment products are also available for special application requirements.

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Jishengya Technology

Shenzhen Jishengya Technology Co., Ltd. is located in Shenzhen, a special economic zone, and is a comprehensive technology enterprise integrating independent R&D, production and sales.