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5 Outstanding Benefits

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Rheology control

Maintains stable viscosity and flow

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Sagging Prevention

Prevents sagging on vertical surfaces.

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Anti-settling

Keeps pigments well-dispersed, avoids sedimentation.

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Improved hardness

Enhances film strength and scratch resistance

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Corrosion resistance

Protects against moisture and chemicals.

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Low-BET Rice Husk Silica for Paints & Coatings

BY-O-COAT RC 300A is a bio-based, hydrophilic silica derived from rice husk, specifically engineered with low BET surface area. It functions as an effective rheology control additive for paints and coatings, offering excellent viscosity stability, anti-settling properties, and improved application performance across a wide range of formulations.

Typical Applications

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General industrial coatings

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Advanced Wood Surface Coatings

Blue Eye Shadow

High-Performance Powder Coatings

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Specialized Coatings for Plastics

Technical Specifications

Unit
-
-
%
g/cm3
μm
m2 /g
Property
State
Appearance
Loss on Drying (2h in 105 oC)
Tamped density
Particle size (D50)
Surface area+
Spec
Amorphous – Micron powder
White
Max 8.0
0.02 – 0.07
4.0 – 8.0
150 – 350
Property
Unit
Spec
Form
-
Amorphous micronized powder
Color
-
White
Loss on Drying (2h, 105°C)
%
≤ 5.0
Tamped Density
g/cm³
0.02 – 0.07
Particle Size (D50)
µm
4.0 – 8.0
Surface Area (BET)
m²/g
150 – 350

Properties

Anti-settling

4/5

Anti-sagging

5/5

Corrosion resistance

2/5

Packaging & Shelf Life

  • Supplied in 8 kg multi-layer paper bags

  • Shelf life: 24 months from the date of production when stored in a dry, sealed condition away from moisture and direct sunlight

Safety & Handling

  • Avoid generating dust; use only in well-ventilated areas

  • Prevent prolonged contact with skin and avoid inhalation of airborne particles

  • Dispose of product and packaging in accordance with local environmental regulations

First Aid Measures

  • In case of skin or eye contact, rinse thoroughly with water

  • If inhaled, move to fresh air and rinse mouth/nasal passages if needed

  • Seek medical attention if irritation or symptoms persist

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TDS 

Short Version

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Technical Application Guide

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