P1550 Pigment Carbon Black

P1550 (printed as P1550B/P on the pigment TDS) is a furnace-process pigment carbon black. The suffix B means beaded / granular; P means powder. The family sheet splits pigment grades into channel-process and furnace-process types and describes them, by blackness class, as offering high blackness, strong tinting strength, a stable hue, ready dispersion and good flow — those are family statements, not extra numbers for this grade. CAS No. 1333-86-4 · H.S. Code 2803000000 · general chemical grade.

P1550 pigment specifications

Figures below are the P1550B/P row on the DLcarb pigment carbon black TDS (printed 3 August 2025).

Technical specifications (TDS)
DLcarb Industry Co., Ltd
Product	Pigment carbon black	Grade	P1550B/P
No.	Item	Unit	Specification
1	Oil absorption	ml/100g	50±3
2	Iodine absorption	g/kg	175±8
3	Heating loss	%	≤1.5
4	Ash content	%	≤0.5
5	Tinting strength	%	≥128
6	pH	-	7~9
7	45 μm sieve residue	ppm	≤50

Note: figures above are TDS specification ranges for reference. Delivery specifications follow the technical agreement we confirm with you. Please validate the grade in your own formulation and process. Safety information sits in the SDS (EU REACH), not in the TDS table.

Uses checked for P1550B/P

The TDS application map marks P1550B/P for the systems below, and only these:

• Plastics and plastic goods
• Water-based paints, water-based inks, water-based coatings and water-based color pastes
• Masterbatch
• Sponge
• Sealants and grout
• Building materials and flooring
• Epoxy resin and epoxy flooring

The same map does not mark P1550B/P for solvent-based paints, inks, coatings or pastes, nor for powder coatings, wire and cable, rubber, silicone, blown film or color sand. If you need a channel grade aimed at both water-based and solvent-based coatings, see C111. For coloration logic beyond a single iodine number, see how to select pigment carbon black, plus notes on plastic masterbatch and coatings and inks. The pigment carbon black hub lists the family.

Furnace grade versus channel C111

P1550 is a furnace pigment row with a near-neutral pH (7~9), a low oil absorption of 50±3 ml/100g, iodine absorption 175±8 g/kg and tinting strength ≥128%. C111 is a channel row: oil absorption 100±10 ml/100g, a surface-area figure of 200±20 in the iodine column (see that page’s footnote), tinting strength ≥130% and an acidic pH of 2.5±1. Those printed differences — not a generic “high-end / low-end” label — are what you should take into a trial plan.

Downloads

Alongside the TDS we publish an EU REACH SDS for carbon black (CAS 1333-86-4) and three SGS reports dated 26 June 2026 on a submitted carbon black sample: REACH Candidate List SVHC screening (253 substances, results ≤0.1% w/w, plus one potential SVHC also ≤0.1% w/w); EU RoHS Directive (EU) 2015/863 amending Annex II to 2011/65/EU (Pass); and halogen testing to IEC 62321-3-2:2020 (fluorine, chlorine, bromine and iodine reported ND on that sample; MDL 20 mg/kg for F and 50 mg/kg for Cl, Br and I). Those reports describe the submitted sample — they are not a substitute for the grade TDS or a lot COA. DLCARB P1550B/P is named on the SDS service summary.

Downloads: Pigment carbon black TDS (PDF) · SDS — EU REACH (PDF) · REACH SVHC screening (PDF) · RoHS report (PDF) · Halogen report (PDF)

The TDS storage note is the same across these sheets: keep the material in a cool, dry, well-ventilated warehouse; protect it from moisture; guard against dust inhalation and skin contact; store it apart from strong oxidants and do not mix-store. For classification and safe handling, follow the SDS rather than the short TDS footnote. MOQ and Incoterms are available on request, not as website figures.

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Key features

• Furnace-process pigment grade (B = beaded, P = powder)
• Oil absorption 50±3 ml/100g; iodine 175±8 g/kg; tinting strength ≥128%
• TDS map: water-based coatings/inks, plastics, masterbatch, sponge, sealants and epoxy — not solvent-based or powder-coating columns
• Family pigment TDS, EU SDS (P1550B/P listed) and June 2026 SGS sample reports