STS Inks Replacement Bag for Brother GT-3 DTG Printers – 380ml (GC-30)
STS Inks
STS Replacement Ink Bag for Brother GT-3 DTG Printers is a 380ml USA-made replacement ink bag (OEM code: GC-30) for the Brother GT-341, GT-361, and GT-381 direct-to-garment printers. Fits directly into any Brother OEM GT-3 cartridge housing. Plug and print — no flush, no profile change. SKU: BRO.DTG.380. CMYK and White available. Drop ships fresh from STS Florida. No returns on ink.
Price range: $99.99 through $514.95
Description
STS Replacement Ink Bag for Brother GT-3 DTG Printers — 380ml (GC-30)
The STS GT-3 Replacement Ink Bag (380ml) is a premium USA-made drop-in replacement for the original Brother GT-3 ink system (OEM code: GC-30). Compatible with the GT-341, GT-361, and GT-381 — the Brother GT-3 Series. This bag fits directly into any Brother OEM GT-3 cartridge housing. STS formulates this ink to closely replicate the original’s viscosity, surface tension, and colorimetry — no line flushing, no color profile change. Just drop it in and print.
Key Features
STS formulates this ink to be a virtual match to the original Brother OEM ink. Install it exactly like OEM — no line purging, no color profile recalibration, no downtime.
Manufactured by STS in the USA. Drop shipped directly from STS in Florida — not warehouse-aged inventory.
Precise color reproduction with vibrant saturation on both light and dark garments using pretreated fabric.
White channel delivers the high-opacity base layer needed for vivid CMYK colors on dark fabrics. Critical for dark garment DTG results.
Ink bonds to pretreated fibers and cures into a flexible, wash-resistant layer. Prints maintain integrity through repeated wash and dry cycles.
Fine inkjet pigment technology delivers precise imaging, clean halftones, and accurate gradients on both light-colored and dark pretreated garments.
Printer Compatibility — Brother GT-3 Series
| Printer Model | Series | Ink Code | Notes |
|---|---|---|---|
| Brother GT-341 | GT-3 Series | GC-30 | Entry-level GT-3; single-head DTG printer |
| Brother GT-361 | GT-3 Series | GC-30 | Mid-range GT-3 series printer |
| Brother GT-381 | GT-3 Series | GC-30 | Higher-output GT-3; 4 white printheads, up to 16×18″ print area |
DTG Workflow Guide — Brother GT-3
| Step | Action | Notes |
|---|---|---|
| 1 | Pre-treat garment | Required for dark garments, recommended for all. Use STS DTG pre-treatment for best results. |
| 2 | Heat press to activate pre-treatment | Typically 356°F for 40 seconds at light pressure. Flatten fibers before loading on platen. |
| 3 | Load garment on GT-3 platen | Select correct platen size for garment dimensions. |
| 4 | Print design | GT-3 software handles white underbase channel for dark garment printing. |
| 5 | Cure the ink | Heat press at 356°F for 40 seconds OR conveyor dryer to 330°F for 30 seconds. |
| 6 | Inspect and fold | Allow to cool before folding. Check for full cure — ink should feel dry, not tacky. |
Also See
Technical Specifications
Technical Specifications
| Specification | Detail |
|---|---|
| Product | STS Replacement Ink Bag for Brother GT-3 DTG Printers |
| SKU | BRO.DTG.380 |
| OEM Code | GC-30 |
| Volume | 380ml per bag |
| Available Channels | Black (K), Cyan (C), Magenta (M), Yellow (Y), White (W) |
| Bag Format | Fits Brother OEM GT-3 GC-30 cartridge housing — drop-in replacement |
| Plug & Print | Yes — no flush, no profile change |
| Origin | Made in USA |
| Fulfillment | Drop ships fresh from STS in Florida |
| Returns | No returns on ink products |
Technical Sheets / Safety Data Sheets / Documents
FREQUENTLY ASKED QUESTIONS
Frequently Asked Questions — STS Replacement Ink Bag for Brother GT-3
The GC-30 format is used by the Brother GT-3 Series: GT-341, GT-361, GT-381, and . These are Brother’s mid-generation DTG printers (between the older GT-5 series and the newer GTX series). Confirm your printer model uses GC-30 before ordering.
The Brother GT-3 (GT-341, GT-361, GT-381) is an older generation than the GTX/GTX Pro series. The GT-3 uses GC-30 ink bags (380ml), while the GTX uses 700ml ink bags. The ink formulations are different — do not interchange GT-3 and GTX inks.
No. STS GT-3 replacement ink is formulated to be a virtual match to the original GC-30 ink in viscosity and color. Drop it in like OEM — no purging, no profile change.
Standard cure: heat press at 356°F for 40 seconds at light pressure, OR conveyor dryer to reach 330°F for 30 seconds at the ink surface. Verify with a laser thermometer. Always do a wash test on a new garment type before production.
STS recommends using their DTG pre-treatment solution for best results. Pre-treatment is required for printing on dark garments and strongly recommended for all garments to ensure proper ink adhesion and wash durability. Without proper pre-treatment, prints may crack, peel, or fade prematurely after washing.
Correct. All DTF and DTG ink products are non-returnable. Please confirm your printer model and the correct ink format before ordering. Call (512) 454-0505 or email [email protected] with your printer model if you have any doubt.
All STS DTG inks are manufactured in the USA. Orders drop ship directly from STS in Florida to ensure freshness — you receive current-production ink, not warehouse-aged stock.
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