MARSH

Marsh Shipping Supply Co., LLC

T-GRADE

INDUSTRIAL PIGMENT INK
⚠️ FLAMMABLE • XYLENE BASED
OUTDOOR USE ONLY

PROJECT DESCRIPTION: This is a reconstruction of the classic heavy-duty shipping ink used in steel drum marking. It uses a solvent-based vehicle to bite through oil/grease and carbon pigment for permanent opacity.

BATCH FORMULA (1 LITER)

Swipe table for percentages →

IngredientFunctionMass (g)%
XYLOL (Xylene)Solvent Base750g79.0%
PINE ROSINBinder/Glue100g10.5%
CARBON BLACKPigment60g6.3%
KAOLIN CLAYThickener40g4.2%
TOTAL950g100%
NOTE: MSDS vs. REALITY The MSDS lists 7 ingredients (like Ethyl Benzene, Cumene) but this recipe uses 4.

Why? The "missing" ingredients are naturally occurring chemical fractions found inside Industrial Grade Xylene. They are listed on safety documents for regulatory reasons, but you do not add them separately. They are already in the solvent can.

SUPPLY MANIFEST

📍 LOCAL HARDWARE STORE (Lowe's/Home Depot)
Xylene / Xylol (1 Gallon)(Paint Aisle)
Empty Metal Paint Can (Quart)(Paint Aisle)
Nitrile Gloves (Box)(Safety Aisle)
📦 ORDER ONLINE (Amazon)
Pine Rosin (Crushed) Find on Amazon →
Carbon Black Pigment (Powder) Find on Amazon →
Kaolin Clay (White Cosmetic) Find on Amazon →
Steel Ball Bearings (Mixing) Find on Amazon →

Operational Procedure

01. Safety & Prep

Ensure you are in a well-ventilated area (outside or garage with door open). Xylene fumes are heavy and potent.

PPE: Organic Vapor Respirator and Nitrile gloves are mandatory. Do not use latex.

02. Create the "Varnish"

In a glass or metal container, pour 500g of Xylol. Take your 100g of Pine Rosin (crushed to powder) and slowly add it to the solvent. Stir until completely dissolved.

Note: The liquid will turn a transparent amber color (like dark beer). This is your binder.

03. The Slurry

This is the critical step to prevent clumps. Slowly add the Carbon Black (60g) and Kaolin Clay (40g) to the Varnish.

Technique: Add one spoonful at a time while stirring. Do not dump the bag, or the powder will float on top and create a dust cloud.

04. High Shear Dispersion

Pigment needs force to mix. You have two options:

  • Drill Method: Use a paint mixing paddle on a drill at high speed for 15 minutes.
  • Shaker Method: Add 50+ steel BBs or ball bearings to the jar, seal tight, and shake violently for 20 minutes.

05. The Let Down

Once the mixture is smooth and black, add the remaining 250g of Xylol to thin the ink to the correct viscosity. Stir gently to combine.

Final Filter: Pour the finished ink through a 190-micron paint filter (or coffee filter) into your final metal storage can to catch any undissolved rosin.
LOT# 103-MSDS
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