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TABLE OF CONTENTS

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OWNER'S MANUAL
TRITIUM
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Series

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Need help?

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Do you have a question about the TRITIUM Series and is the answer not in the manual?

Questions and answers

John Bruce
August 28, 2025

The airflow through the brush does not stop when the trigger is released.

Summary of Contents for Grex TRITIUM Series

  • Page 1: Table Of Contents

    OWNER’S MANUAL TRITIUM ® Series TABLE OF CONTENTS 01. Technical Specifications ..... 2 02. Anatomy of Your Airbrush ....3 03.
  • Page 3 * Recommended Operating Pressures: 4 ~ 80psi (0.28 ~ 5.52bar) * Operating pressures may vary depending on paint used. * All optional accessories are sold separately. * See Section 8 for a full list of available genuine Grex accessories. ®...
  • Page 4: Technical Specifications

    ..... . G-MAC Quick Connect Valve ... AD31 - Adaptor, Grex to Iwata or Aztek Side Feed .
  • Page 5: Anatomy Of Your Airbrush

    Anatomy of Your Airbrush Grex Tritium Series Owner’s Manual 2. ANATOMY OF YOUR AIRBRUSH Tritium.TG Cup lid Quick-Fit cap storage Quick-Fit needle cap Paint cup Pre-set knob Rear handle cap Nozzle cap Quick-Fit Integrated cup crown cap Trigger Pistol grip handle...
  • Page 6: General Information

    Choosing an appropriate air compressor that supplies sufficient air flow ensures the ability to take full advantage of the versatile spray characteristics of your Grex airbrush. Working pressures can vary from 4 to 80 psi depending on the type of work and what textures are desired.
  • Page 7: General Operation

    Figure 4A. Figure 4B. 4.3 Quick-Fit Needle Caps All Grex Tritium airbrushes feature our patented Quick-Fit needle caps. These caps can be easily removed and installed by simply attaching them to the magnetic nozzle cap. Each airbrush includes one Quick-Fit Standard Needle Cap and one Quick-Fit Crown Needle Cap.
  • Page 8: Installing Paint Reservoirs

    General Operation Grex Tritium Series Owner’s Manual 4.4 Installing Paint Reservoirs Tritium.TG Your Tritium.TG airbrush comes with three top gravity cups of varying fluid capacity. Depending on your application, you can chose to install either one of these cups. Simply securely screw the threaded base of the cup onto the airbrush.
  • Page 9: Airbrush Trigger Operation

    General Operation Grex Tritium Series Owner’s Manual 4.5 Airbrush Trigger Operation In a double action pistol style trigger airbrush, the trigger controls both the air flow through the airbrush and the paint volume sprayed. Pulling the trigger back to the halfway point opens the air valve at the bottom of the airbrush and allows air to flow through.
  • Page 10: Pre-Set Knob Adjustments

    Note that paint viscosity will also affect the stippling texture. 4.7 Pre-set Knob Adjustments To help produce constant line widths, your Grex airbrush comes standard with a Pre-Set Knob on the end of the rear handle cap. A set amount of paint is sprayed by limiting how far the trigger can be pulled back.
  • Page 11: Maintenance

    Maintenance Grex Tritium Series Owner’s Manual 5. MAINTENANCE Your Grex airbrush is a durable precision instrument. As with any precision instrument, it is susceptible to damage if handled improperly. Take care to prevent damaging the components of this highly sensitive tool to assure peak performance throughout its lifetime.
  • Page 12: Cleaning Between Color Changes

    Maintenance Grex Tritium Series Owner’s Manual 5.1 Cleaning the Airbrush <continued> Note: We recommend using the mildest solvent to clean the types of paint used. If water-based paints were used, then water is usually sufficient to clean out your airbrush. Be sure to follow all instruc- tions that come with the solvents.
  • Page 13: Airbrush Back Flushing

    Maintenance Grex Tritium Series Owner’s Manual 5.3 After Each Use <continued> Clean the rest of the airbrush body and dry thoroughly. Make sure the entire airbrush is re-assembled properly. Spray some water or alcohol through your airbrush to make sure it has been thoroughly cleaned and is functioning properly before storing.
  • Page 14: Needle Pumping

    Maintenance Grex Tritium Series Owner’s Manual 5.5 Needle Pumping With rear handle cap removed, loosen the needle lock. Partially fill the paint reservoir with water or cleaner. Hold the needle and move it slightly in and out of your airbrush repeatedly (pumping) to clean the internal packing.
  • Page 15: Cleaning The Fluid Nozzle

    Refer to Figure 5F below. A video demonstrating the full assembly and dis-assembly of Grex airbrushes can be found by visiting: www.grexairbrush.com/ABM Figure 5F.
  • Page 16: Nozzle Conversion Kits

    Maintenance Grex Tritium Series Owner’s Manual 6. NOZZLE CONVERSION KITS Nozzle Conversion Kits are great as replacement parts or an excellent way to change your spray output. Compatible with the Tritium.TS, TG, and Genesis.XGi and XSi. Caution: Please read, understand and follow the instructions in Section 7, “Replacement Parts,”...
  • Page 17: Replacement Parts

    Note: It is recommended to change the fluid needle at the same time to ensure even wear. Fluid Needle – Grex needles are made of precision ground and hardened stainless steel and will withstand prolonged use. However, because of their fine tip and long taper, they are easily subject to physical damage.
  • Page 18: Accessories

    & disconnects between air hose and airbrush for easy setup and system changes. AD02 Coupler (F) & Plug (M) Set for Grex airbrush & hose AD03 Coupler (M) & Plug (F) Set for Grex airbrush & hose AD09 Plug for Grex Airbrush...
  • Page 19 CP125-G 125mL (4.23 fl. oz.) Set of six 30mL (1 fl. oz.) Bottles CP30-6K For Grex XB, XBi, XT, TS, XSi or CP30-01, CV1-2TB Air Fitting Adapters Connect hose, airbrush, and air fittings with different sizes. AD05 1/8"M to 1/8"M AD24 1/4"F to 1/4"F...
  • Page 20: Private Stock Color System

    Private Stock Color System Grex Tritium Series Owner’s Manual 9. PRIVATE STOCK COLOR SYSTEM Private Stock is a revolutionary and evolutionary paint system – made from a blend of acrylics designed and formulated for performance to give you full control on every surface imaginable.
  • Page 21: Troubleshooting Guide

    Troubleshooting Guide Grex Tritium Series Owner’s Manual 10. TROUBLESHOOTING GUIDE Symptom Possible Causes Paint spray skipping Air pressure too high • Dirty airbrush • Paint too thick • Improper nozzle cap connection • Poor air connections to airbrush, etc. •...
  • Page 22: Exploded Diagrams

    Exploded Diagram & Parts List Grex Tritium Series Owner’s Manual 11. EXPLODED DIAGRAM & PARTS LIST CP07-2 CP15-1 CP30-2 CP15-2 CP07-1 CP02-1 ®...
  • Page 23 Exploded Diagram & Parts List Grex Tritium Series Owner’s Manual 11. EXPLODED DIAGRAM & PARTS LIST Part No. Part Description Part No. Part Description A034000 Needle Cap A150019 Quick-Fit Air valve pin A034010 Quick-Fit Crown Cap A060006 O-ring A044020 Nozzle cap (0.2mm)
  • Page 24: Warranty Information

    All information, text and images contained in this publication are the property of Grex Airbrush. Permission is required to copy or use any text or images. © 2019 Grex Airbrush. All Rights Reserved.

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