Chromaline CP Tex Diazo Emulsion – Versatile, Durable Screen Printing Emulsion for Water-Based, Discharge & Plastisol Inks

Name: Chromaline CP Tex Diazo Emulsion - Versatile, Durable Screen Printing Emulsion for Water-Based, Discharge &amp; Plastisol Inks
SKU: CH CPTEX
Availability: InStock

Chromaline

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Chromaline CP-Tex is the diazo emulsion built for durability above all else — reporting up to 75,000 impressions on demanding water-based and discharge print runs. If you’re running high-volume jobs with chemically aggressive inks and need a stencil that simply refuses to break down mid-run, CP-Tex is what the industry has relied on for decades. The diazo sensitizer is included, and CP-Tex’s legendarily wide exposure latitude means it’s forgiving of operator error — difficult to over- or under-expose compared to pure photopolymers.

✓ Up to 75,000 Impressions
Exceptional durability on WB and discharge — stencil integrity through the longest runs

✓ Wide Exposure Latitude
Forgiving and hard to over-expose — ideal for shops without precise exposure calibration

✓ WB, Discharge & Plastisol
Compatible with all major textile ink systems

✓ Diazo Included
Sensitizer packet included — no separate purchase required

✓ 24-Month Unsensitized Shelf Life
Long shelf life before mixing — sensitize only what you need

✓ Proven Industry Workhorse
Decades of use in demanding textile screen rooms worldwide

🚚 Same-Day Shipping Before 3:30 PM CT · Free Shipping on Orders Over $200 · Ships from San Antonio, TX ☀️

Price range: $38.75 through $5,558.40

Size

80 Gallon Skid
Quart
1 Gallon
4 Gallons
50 Gallons

Clear

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SKU: CH CPTEX Category: Emulsions Tags: Chromaline CP Tex emulsion, Chromaline diazo emulsion, diazo screen printing emulsion, discharge ink screen emulsion, medium viscosity screen emulsion, performance fabric screen emulsion, plastisol compatible emulsion, screen printing emulsion for cotton, water based screen printing emulsion, water resistant screen emulsion

Description

The Durability Standard for WB & Discharge — Chromaline CP-Tex

When shops ask what emulsion they should use for long-run water-based and discharge printing, CP-Tex comes up time and time again. Its diazo chemistry creates a chemically cross-linked stencil that resists the aggressive penetration and chemical activity of water-based and discharge inks far longer than most photopolymer alternatives — with reported print runs reaching 75,000 impressions. For shops running production-scale garment dye jobs, discharge prints, or high-volume water-based work, CP-Tex sets the benchmark for how long a stencil can hold up. The wide exposure latitude is a production advantage too: CP-Tex is genuinely forgiving of slight exposure variation, making it a reliable choice for shops that don’t have tightly calibrated exposure setups.

Why Diazo Lasts Longer on WB/Discharge

Diazo emulsions undergo a deeper chemical cross-linking during exposure than pure photopolymers. This produces a harder, denser stencil wall that resists the penetration and swelling caused by water-based and discharge inks. That’s why high-run WB/discharge printers keep coming back to diazo when run count matters most.

Wide Exposure Latitude — Built-In Forgiveness

CP-Tex has one of the widest exposure windows in Chromaline’s lineup. A photopolymer that’s slightly overexposed can lose fine detail; CP-Tex holds both extremes well. This makes it particularly valuable in shops running metal halide units without precise timers, or in environments where screen room conditions vary.

Sensitized Shelf Life — Temperature Matters

Once mixed with diazo sensitizer, CP-Tex lasts 4–6 weeks at 72°F. In a hot shop running at 90–100°F, the sensitized shelf life drops to under one week. Only sensitize what you’ll use in the near term, and refrigerate sensitized emulsion if possible to extend shelf life. The unsensitized product keeps 24 months.

Metal Halide Recommended

CP-Tex is a diazo emulsion optimized for metal halide exposure units, which produce broad-spectrum UV output well-matched to diazo’s spectral sensitivity. LED units can work but may require longer exposure times. If you’re on LED, consider Hydro X Blue or Red for all-purpose WB/discharge use.

What You Receive

1Chromaline CP-Tex diazo 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

Which Size Is Right for You?

Quart

~20–25 screens. Good for evaluating CP-Tex before committing to larger volume, or for smaller shops running occasional WB/discharge jobs.

Gallon

~80–100 screens. Most popular size. Sensitize in batches that will be used within the sensitized shelf life window.

3.5 Gallon

~280–350 screens. High-volume shops running sustained WB/discharge production. Sensitize in manageable batches.

Yield estimates based on standard 1+1 coating; actual yield varies with mesh count and frame size.

How to Use CP-Tex

Step 1 — Mix Sensitizer

Dissolve the included diazo packet in distilled water per instructions. Stir into emulsion. Allow 30 minutes for de-gas before use. Only sensitize what you’ll use within the sensitized shelf life window.

Step 2 — Degrease & Coat

Clean mesh with Chroma/Clean. Apply 1+1 with a scoop coater in yellow safelight conditions. Additional coats increase EOM and run durability.

Step 3 — Dry

Dry horizontally in a dark cabinet. Must be completely dry before exposure. Sensitized screens are best used within a few days of coating.

Step 4 — Expose

Metal halide recommended. CP-Tex’s wide latitude means it is forgiving — run a step wedge to establish your baseline, but don’t stress over minor variation.

Step 5 — Washout

Rinse with room-temperature water. CP-Tex washes out cleanly. Inspect on a light table before printing.

Step 6 — Reclaim

Apply Chroma/Strip, dwell, and pressure wash. Use Chroma/Haze for ghost stain removal.

Having emulsion issues? Visit our emulsion troubleshooting guide or call (512) 454-0505.

Watch: Screen Making 101

New to making screens? This step-by-step Chromaline video covers mesh prep, emulsion coating, exposure, and washout from start to finish.

⚠ Not Freeze/Thaw Stable

Frozen emulsion is permanently damaged. Ships from warm San Antonio, TX.

⚠ Sensitized Shelf Life Is Temperature-Dependent

4–6 weeks at 72°F; under 1 week at 90–100°F. Hot shops must use sensitized emulsion quickly. Refrigerate to extend shelf life.

⚠ Allow 30 Min De-Gas After Mixing

After mixing diazo into emulsion, allow 30 minutes for air bubbles to dissipate before coating. Bubbles in the coating cause pinholes.

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-TexYOU ARE HERE	Diazo	Plastisol, WB, Discharge	Moderate	High-run WB/discharge durability
UDC-2 ↗	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

Why Buy from River City Supply?

💰 Better Pricing Than Buying Direct

Authorized distributor pricing. Free shipping over $200.

🚚 Same-Day Shipping Before 3:30 PM CT

Order by 3:30 PM Central, ships same day. Free on orders over $200.

☀️ Ships from San Antonio, TX

Warmer climate = more safe winter shipping days for freeze-sensitive emulsions.

✓ Authorized Distributor Since 2008

17+ years. Genuine Chromaline product and real screen printing expertise.

Frequently Bought Together

Chromaline Chroma/Screen Wash iSC

All-in-one screen wash — cleans, degrease and prep in one formula.

View Product ↗

Chromaline Chroma/Strip iSC

Fast, clean emulsion removal. No locking, no residue.

View Product

Chromaline Chroma/Wet iSC

Degreaser and reclaiming aid for clean mesh and better adhesion.

View Product ↗

Chromaline 10-Step Exposure Guide

Dial in your exposure unit fast. LED or metal halide.

View Product ↗

Scoop Coater

Required for applying emulsion — a sharp scoop coater ensures an even, consistent coating on every screen.

View Product

The Long-Run Standard — Ship Today

Same-day shipping before 3:30 PM CT. Free shipping over $200. Call (512) 454-0505 or email [email protected]. Emulsion issues? See our troubleshooting guide.

Add CP-Tex to Cart

Technical Specifications

Chromaline CP-Tex — Technical Specifications

Specification	Value / Detail
Emulsion Type	Diazo
Color	Blue
Pre-Sensitized	No — diazo sensitizer must be mixed in before use
Sensitizer Required	Diazo sensitizer (included in box)
Compatible Ink Systems	Plastisol, Water-Based, Discharge
Exposure Speed	Moderate
Exposure Unit Compatibility	LED and traditional metal halide / UV fluorescent
Run Life	Up to 75,000+ impressions with proper exposure
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

Yield estimates based on standard 1+1 coating; actual yield varies with mesh count and frame size.

Technical Sheets / Safety Data Sheets / Documents

Chromaline CP Tex Safety Data Sheet

Chromaline CP Tex Technical Data Sheet

FREQUENTLY ASKED QUESTIONS

Frequently Asked Questions — Chromaline CP-Tex

Is the diazo sensitizer included with CP-Tex?

Yes — the diazo sensitizer packet is included with every size of CP-Tex. There is no separate sensitizer purchase required. Dissolve the packet in distilled water, stir into the emulsion, and allow 30 minutes for de-gassing before use.

Why choose CP-Tex over a photopolymer for water-based and discharge printing?

Diazo chemistry produces a deeper chemical cross-link during exposure than pure photopolymers, creating a harder, denser stencil wall that resists the penetration and swelling caused by water-based and discharge inks. CP-Tex reports up to 75,000 impressions — significantly higher than most photopolymers on demanding WB/discharge jobs.

How long does CP-Tex last after mixing the sensitizer?

Sensitized CP-Tex lasts 4–6 weeks at 72°F. In hot shops (90–100°F), the sensitized shelf life drops to under one week. Only mix what you’ll use within the window. Refrigerating sensitized emulsion extends shelf life. The unsensitized product has a 24-month shelf life at room temperature.

What exposure unit works best with CP-Tex?

Metal halide exposure units are recommended for CP-Tex — their broad-spectrum UV output is well-matched to diazo chemistry. LED units can work but may require longer exposure times than photopolymer emulsions. If you’re primarily using LED, consider Hydro X Blue or Hydro X Red for WB/discharge applications.

Is CP-Tex freeze/thaw stable?

No — CP-Tex is NOT freeze/thaw stable. Frozen emulsion is permanently damaged. River City Supply ships from San Antonio, Texas, for more safe winter shipping days than northern or midwestern distributors.

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

Visit our emulsion troubleshooting guide or call (512) 454-0505 or email [email protected].

Questions? We’re here to help.

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

Order CP-Tex

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Chromaline CP Tex Diazo Emulsion – Versatile, Durable Screen Printing Emulsion for Water-Based, Discharge & Plastisol Inks

Description