{"id":3737,"date":"2025-09-24T15:58:49","date_gmt":"2025-09-24T07:58:49","guid":{"rendered":"https:\/\/www.honorpigments.com\/?post_type=product&p=3737"},"modified":"2026-03-13T14:38:36","modified_gmt":"2026-03-13T06:38:36","slug":"cobalt-aluminate-blue-91477-pigment-blue-28","status":"publish","type":"product","link":"https:\/\/www.honorpigment.com\/mn\/product\/cobalt-aluminate-blue-91477-pigment-blue-28\/","title":{"rendered":"PIGMENT BLUE 28\/ Cobalt Aluminate Blue 91477"},"content":{"rendered":"

Product Description – PB28<\/strong><\/h3>\n

Cobalt Aluminate Blue 91477 (PIGMENT BLUE 28) consists of minute,very thin, more or less hexagonal flakes. A high-temperature calcined blue pigment with excellent chemical resistance, outdoor durability, light fastness, thermal stability, no bleeding and no migration. Widely used in fields with high requirements for heat resistance, weather resistance and light resistance; compatible with most resins or polymers. Reddish hue, small particle size, easy to disperse; strong tinting power, good hiding power, etc.<\/p>\n

Recommended Application<\/strong><\/h3>\n

Coatings: solvent based paints, water based paints, auto paints, industrial coatings, powder coatings, wood coatings, coil coatings
\nPlastics: PE, PP, PBT, PVC, PET, EVA, ABS<\/p>\n

Technical Data<\/strong><\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Product Information<\/strong><\/span><\/td>\n<\/tr>\n
Chemical Type<\/span><\/td>\nCo-Al-O<\/td>\nCAS NO.<\/span><\/td>\n1345-16-0<\/td>\n<\/tr>\n
C. I. Name<\/span><\/td>\nPigment Blue 28<\/td>\nEINECS \/ ELINCS NO.<\/span><\/td>\n310-193-6<\/td>\n<\/tr>\n
C. I. Constitution No.<\/span><\/td>\n77346<\/td>\nChemical Formula<\/span><\/td>\n<\/td>\n<\/tr>\n
<\/td>\n<\/tr>\n
Technical Performance<\/strong><\/span><\/td>\n<\/tr>\n
<\/td>\nFull Shade<\/span><\/td>\nTint<\/span><\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Weather Resistance<\/span><\/td>\n5<\/td>\n5<\/td>\nHeat Stability \u00b0C<\/span><\/td>\n800\u00b0C<\/span><\/td>\n<\/tr>\n
Light Fastness<\/span><\/td>\n8<\/td>\n8<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n<\/tr>\n
Physical Properties<\/strong><\/span><\/td>\n<\/tr>\n
Physical Form<\/span><\/td>\nPowder<\/span><\/td>\nSieve Residure On 45 microns %<\/td>\n0.5% max<\/td>\n<\/tr>\n
Specific Density (g\/cm3):<\/td>\n4.2<\/td>\nPrimary Particle size D 50 um<\/td>\n~1.2<\/td>\n<\/tr>\n
Oil Absorption<\/td>\n16-26<\/td>\nResistance to Acid<\/span><\/td>\n5<\/td>\n<\/tr>\n
Water Solube Matter %<\/td>\n< 1.0<\/td>\nResistance to Alkali<\/span><\/td>\n5<\/td>\n<\/tr>\n
Volatile Matter<\/td>\n1.0% max<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
PH<\/td>\n7.5~9.5<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Packaging<\/strong><\/span><\/td>\n<\/tr>\n
25kgs\/bag 1000kgs\/Pallet<\/td>\n<\/tr>\n
<\/td>\n<\/tr>\n
Storage<\/strong><\/span><\/td>\nShelf Life<\/strong><\/span><\/td>\n5 years<\/span><\/td>\n<\/tr>\n
Should be stored in cool, dry and ventilate place.<\/span><\/td>\n<\/tr>\n
<\/td>\n<\/tr>\n
TRANSPORTATION<\/strong><\/span><\/td>\n<\/tr>\n
Avoid inversion, sunlight, moisture and crash. Avoid damage the package.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n
  • Light fastness: Light fastness rating is assessed on 1 to 8 Blue Wool scale where 1 = \u2018Poor\u2019 and 8 = \u2018Excellent\u2019.<\/li>\n
  • Heat Stability : Heat stability values given indicate the maximum temperature at which the pigment can be stoved for 10 min. on the full shade and in reductions without undergoing any significant change in shade.<\/li>\n
  • Oil absorption: The oil absorption is determined on the basis of EN ISO 787-5 and given in g linseed oil per 100 gm. pigment.<\/li>\n
  • Solvent bleeding: The bleeding in solvents is tested using the powder grades and the visual rating given on 1 to 5 Grey scale
    \nwhere 1 = \u2018Heavy bleeding\u2019 and 5 = \u2018No bleeding”<\/li>\n<\/ul>\n

    Disclaimer \u2013 The information given in this data sheet is based on the present state of our knowledge & is intended as a general description of our products & their possible applications. Due to the multitude of formulations, production & application conditions, all the above mentioned data have to be adjusted to the circumstances of the processor. No liabilities, including those for patent rights, can be derived from this fact for individual cases. It cannot be ruled out that this product contains particles < 0.1 \u03bcm. Any user of this product is responsible for determining the suitability of Sudarshan\u2019s products for its particular application & to ensure that any proprietary rights & existing laws & legislation are observed.<\/p>","protected":false},"excerpt":{"rendered":"

    C.I.NO.: PB28<\/p>\n

    Advantage:<\/p>\n

    Main Application Recommended: Plastics<\/p>","protected":false},"featured_media":3707,"template":"","meta":[],"product_brand":[],"product_cat":[65,57],"product_tag":[372],"class_list":{"0":"post-3737","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-chrome-pigments","7":"product_cat-inorganic-pigments","8":"product_tag-pb28","9":"stm_brands-honor-pigments","11":"first","12":"instock","13":"shipping-taxable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.honorpigment.com\/mn\/wp-json\/wp\/v2\/product\/3737","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.honorpigment.com\/mn\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.honorpigment.com\/mn\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":0,"href":"https:\/\/www.honorpigment.com\/mn\/wp-json\/wp\/v2\/product\/3737\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.honorpigment.com\/mn\/wp-json\/wp\/v2\/media\/3707"}],"wp:attachment":[{"href":"https:\/\/www.honorpigment.com\/mn\/wp-json\/wp\/v2\/media?parent=3737"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.honorpigment.com\/mn\/wp-json\/wp\/v2\/product_brand?post=3737"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.honorpigment.com\/mn\/wp-json\/wp\/v2\/product_cat?post=3737"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.honorpigment.com\/mn\/wp-json\/wp\/v2\/product_tag?post=3737"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}