Chromaline UDC-2 Diazo Dual Cure Screen Printing Emulsion – High-Definition Dual Cure Emulsion for Plastisol & Solvent Inks

Chromaline

Chromaline UDC-2 Diazo Dual Cure Screen Printing Emulsion - High-Definition Dual Cure Emulsion for Plastisol & Solvent Inks

Chromaline UDC-2 (Magna/Cure) is Chromaline’s best-selling dual-cure emulsion of all time. It hits a sweet spot that a wide range of screen printers need: fast exposure, excellent line definition and halftone holding, and compatibility with plastisol, solvent, and UV-curable inks — all in one emulsion that works for both textile and graphic applications. The diazo sensitizer is included. At 3,500 CPS, its lower viscosity makes it particularly effective on finer mesh counts where halftone accuracy and fine-line resolution matter most.

✓ Chromaline’s Best-Selling Dual-Cure Ever
Proven across decades in textile and graphic screen printing
✓ Excellent Line Definition & Halftone Holding
3,500 CPS — flows cleanly into fine mesh for crisp detail
✓ Plastisol, Solvent & UV-Curable
Dual-cure chemical resistance across multiple ink systems
✓ Diazo Included
No separate sensitizer purchase required
✓ Graphic + Textile
Versatile enough for both printing disciplines
✓ Fast Exposure
Faster than diazo-only emulsions — dual-cure speed advantage
🚚 Same-Day Shipping Before 3:30 PM CT  ·  Free Shipping on Orders Over $200  ·  Ships from San Antonio, TX ☀️

Price range: $41.68 through $4,013.00

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SKU: CH UDC2 Category: Tags: , , , , , , , , ,

Description

Chromaline’s Best-Selling Dual-Cure — UDC-2

UDC-2 didn’t become Chromaline’s best-selling dual-cure by accident. It hits the exact combination most screen printers need: photopolymer exposure speed, dual-cure chemical resistance for solvent and UV-curable inks, excellent halftone and line holding at 3,500 CPS, and broad compatibility across both textile and graphic applications. Mix the included diazo packet, wait 30 minutes for de-gas, and you’re coating. The result is a crisp, well-defined stencil with the chemical durability to handle demanding solvent and UV ink systems.

What Makes a Dual-Cure Different

Dual-cure emulsions contain both a photopolymer component and a diazo sensitizer. The photopolymer provides faster exposure and good resolution; the diazo cross-links for chemical resistance. The combination delivers more versatility than a pure photopolymer and faster exposure than diazo-only emulsions.

3,500 CPS — Fine Detail Advantage

UDC-2’s lower viscosity flows cleanly into fine mesh openings, producing a uniform stencil wall that holds halftone dots and fine lines with high fidelity. If you’re running high mesh counts for detailed graphic work or tight halftone jobs, UDC-2’s viscosity is a performance advantage over higher-viscosity alternatives.

Graphic + Textile — True Versatility

UDC-2’s resolution, chemical resistance, and ink system compatibility make it effective for both textile plastisol printing and graphic applications using solvent or UV-curable inks. Shops running both disciplines can standardize on a single emulsion without compromising either.

UDC-2 vs. UDC-HV

Both are dual-cures with the same ink compatibility. UDC-2 (3,500 CPS) excels on fine mesh and halftone detail. UDC-HV (5,300 CPS) coats low and high mesh counts more uniformly and is more forgiving across varied shop conditions. UDC-HV is Chromaline’s most popular dual-cure overall; UDC-2 is the choice when resolution and detail are the priority.

What You Receive

1Chromaline UDC-2 dual-cure emulsion in your selected size (Quart, Gallon, or 3.5 Gallon)
2Diazo sensitizer packet included — no separate purchase needed
3Access to River City Supply’s emulsion troubleshooting guide and support at (512) 454-0505

Chromaline Full Emulsion Line — Find Your Match

Emulsion Type Ink Compatibility Exposure Best For
ChromaBlue ↗ Pure Photopolymer (SBQ) Plastisol Very Fast High-volume plastisol, LED shops
ChromaLime ↗ Pure Photopolymer (SBQ) Plastisol Very Fast Inkjet positives, humidity, registration
Hydro X Blue ↗ Hybrid Photopolymer Plastisol, WB, Discharge Very Fast All-purpose, water-based/discharge
Hydro X Red ↗ Hybrid Photopolymer Plastisol, WB, Discharge Very Fast Halftone/fine detail, LED units
CP-Tex ↗ Diazo Plastisol, WB, Discharge Moderate High-run WB/discharge durability
UDC-2YOU ARE HERE Dual-Cure Plastisol, Solvent, UV Fast Graphic + textile, halftone detail
UDC-HV ↗ Dual-Cure Plastisol, Solvent, UV Fast All mesh counts, forgiving shops
GSR ↗ Pure Photopolymer (SBQ, solvent-resistant) UV, Solvent, Plastisol Fast UV/solvent inks, freeze/thaw stable
Chromaline PL ↗ Pure Photopolymer (SBQ) Plastisol Very Fast High-build plastisol, thick deposits

Technical Specifications

Chromaline UDC-2 — Technical Specifications

Specification Value / Detail
Emulsion Type Dual-Cure (diazo + photopolymer)
Color Blue
Viscosity 3,500 CPS
Pre-Sensitized No — diazo sensitizer must be mixed in before use
Sensitizer Required Diazo sensitizer (included in box)
Compatible Ink Systems Plastisol, Solvent, UV-Curable
Exposure Speed Fast
Exposure Unit Compatibility LED and traditional metal halide / UV fluorescent
Sensitized Shelf Life 4–6 weeks (refrigerate after mixing)
Unsensitized Shelf Life 24 months at room temperature
Freeze/Thaw Stability NOT freeze/thaw stable — frozen emulsion is permanently damaged
Recommended Coating 1+1 (one coat squeegee side, one coat print side)
Screen Yield — Quart ~20–25 screens (based on standard 1+1 coating)
Screen Yield — Gallon ~80–100 screens (based on standard 1+1 coating)
Screen Yield — 3.5 Gallon ~280–350 screens (based on standard 1+1 coating)
Reclaim Chemistry Chroma/Strip emulsion remover; Chroma/Haze for ghost stain removal
Manufacturer Chromaline Corporation
Distributed By River City Supply — Authorized Chromaline Distributor since 2008

Screen yield estimates based on standard 1+1 coating; actual yield varies with mesh count and frame size. Always run a step wedge exposure test to calibrate your specific exposure unit.

Technical Sheets / Safety Data Sheets / Documents

Chraomaline UDC-2 Safety Data Sheet

Chromaline UDC-2 Technical Data Sheet

FREQUENTLY ASKED QUESTIONS

Frequently Asked Questions — Chromaline UDC-2

What does “dual-cure” mean for UDC-2?

Dual-cure means UDC-2 uses both diazo and photopolymer sensitizers working together. The diazo component provides excellent exposure latitude and durability; the photopolymer component adds resolution and chemical resistance. You mix the included diazo sensitizer into the emulsion before first use, then UDC-2 is ready to coat.

Is the diazo sensitizer included with UDC-2?

Yes — the diazo sensitizer is included in every container of UDC-2. You do not need to purchase it separately. Mix the sensitizer into the emulsion, allow a 30-minute de-gas rest, and then coat. Once mixed, the sensitized emulsion should be stored in a cool, dark location and used within 4–6 weeks.

What ink systems is UDC-2 compatible with?

UDC-2 is compatible with plastisol, solvent-based, and UV-curable inks. It is not recommended for water-based or discharge ink systems — for those, look at Chromaline’s Hydro X Blue or Hydro X Red, which are engineered specifically for water-based and discharge applications.

What is the viscosity of UDC-2 and why does it matter?

UDC-2 has a viscosity of 3,500 CPS — a standard working viscosity suited for most mesh counts and coating setups. It flows smoothly through the scoop coater and self-levels well. The sister product UDC-HV has a higher viscosity (5,300 CPS), which is better for coarser mesh counts or shops that need a thicker emulsion deposit.

How long does UDC-2 last after mixing the diazo?

Once the diazo sensitizer is mixed in, UDC-2 should be used within 4–6 weeks when stored in a cool, dark location. Unmixed (unsensitized), the shelf life is 24 months at room temperature. Mix only what you plan to use in the near term — refrigeration after mixing can extend pot life slightly.

Is UDC-2 freeze/thaw stable?

No — UDC-2 is NOT freeze/thaw stable. Frozen emulsion is permanently damaged and unusable. River City Supply ships from San Antonio, Texas, which has a significantly warmer winter climate than most of the country, giving us more safe shipping days for freeze-sensitive products during cold weather months.

What exposure unit works with UDC-2?

UDC-2 is compatible with both LED exposure units and traditional metal halide / UV fluorescent units. As a dual-cure emulsion, it has a broader exposure latitude than pure photopolymers, which means it is more forgiving of slight over- or under-exposure. Always run a step wedge test to dial in your specific unit.

I’m having emulsion problems. Where can I get help?

Visit our emulsion troubleshooting guide at screenprintsupplies.com/emulsion-troubles/ for coverage of pinholes, exposure issues, washout problems, and stencil breakdown. You can also reach our team at (512) 454-0505 or [email protected].

Questions? We’re here to help.

(512) 454-0505  |  [email protected]  |  Same-day shipping before 3:30 PM CT

Order UDC-2

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