Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Cathay Hoover 418RU Raw Umber Inorganic Pigment

CathayHoover418RUisapremiuminorganicpigmentfromtheCathayHooverRawUmberseries,offeringexcellentlightfastness,heatstability,andchemicalresistance.Idealforhigh-performancecoatings,plastics,andconstructionmaterials,itdeliversconsistentearthytoneandstrongcoloringpowerwithlowvolatilesandheavy-metalfreecompliance.
  • cathay hoover 418ru raw umber inorganic pigment_6a5082b3
  • cathay hoover 418ru raw umber inorganic pigment_6a5082b3

Features Of Cathay Hoover 418RU Raw Umber Inorganic Pigment

  1. Naturally derived iron oxide-based pigment with consistent earthy brown hue and excellent lightfastness.

  2. High thermal stability suitable for processing temperatures up to 300°C without color degradation.

  3. Low water solubility and outstanding alkali resistance, ensuring compatibility in cementitious and plaster systems.

  4. Non-toxic, heavy metal-free formulation compliant with EU REACH and ASTM D5067 standards.

  5. Optimized particle size distribution for uniform dispersion and minimal settling in liquid media.

Typical Applications Of Cathay Hoover 418RU Raw Umber Inorganic Pigment

  1. Architectural coatings including exterior masonry paints and textured finishes.

  2. Cement, concrete, and precast concrete products for integral coloring.

  3. Tile grouts and polymer-modified mortars requiring durable, UV-stable pigmentation.

  4. Plaster and stucco systems where natural tone consistency and weather resistance are critical.

  5. Industrial flooring compounds and epoxy-based decorative surfacing materials.

Specifications Of Cathay Hoover 418RU Raw Umber Inorganic Pigment

Chemical TypeNatural iron oxide (Fe₂O₃·H₂O) with clay matrix
Product FormFine dry powder
AppearanceFree-flowing, reddish-brown granular powder
Primary ApplicationsCementitious systems, architectural coatings, mortars, plasters
Key FeaturesLightfastness rating: ASTM D4303 Class I; pH stability: 5–12
BenefitsColor consistency batch-to-batch; low oil absorption (~18 g/100g)
Storage ConditionsStore in cool, dry, well-ventilated area away from moisture
Regulatory ComplianceREACH registered; non-hazardous per GHS classification


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