White plastisol ink is one of the most important inks in a screen printing shop.
It is also one of the easiest inks to choose incorrectly.
A printer may ask:
“What is the best white ink?”
But the better question is:
“What is the best white ink for this garment, this artwork, this cure temperature, and this production method?”
There is no single white ink that is perfect for every job.
Some whites are built for soft hand on cotton.
Some are built for everyday cotton and blend printing.
Some are built for faster production and brighter opacity.
Some are built to fight polyester dye migration.
Some are built as barrier layers for the most difficult garments.
Choosing the right white ink starts with understanding what problem you are trying to solve.
Why White Plastisol Inks Are Not All the Same
White inks are formulated around different priorities.
A white ink may be designed for:
- Opacity
- Bleed resistance
- Flash speed
- Cure temperature
- Stretch
- Hand feel
- Brightness
- Printability
- Polyester performance
- Cotton softness
- Underbase printing
- Highlight white printing
The more performance you ask from the ink, the more tradeoffs you may see.
A soft cotton white may print beautifully on 100% cotton but fail on polyester.
A maximum bleed-resistant poly white may block dye migration better, but it may feel heavier and print thicker.
A low-cure white may help protect heat-sensitive garments, but it still must be cured correctly.
The goal is not simply choosing the strongest white.
The goal is choosing the right white for the job.
1. Cotton White
Cotton white is designed for printing onto 100% cotton garments where bleed resistance is not needed.
This type of white usually offers:
- Excellent opacity
- Softer hand
- Easier printability
- Strong brightness on cotton
- Less need for aggressive bleed-blocking chemistry
Cotton white is often a great choice when you know the garment is cotton and dye migration is not a concern.
Why not use low-bleed white on everything?
Many printers use low-bleed whites as their everyday white, and that can work well in mixed shops.
But there is a reason cotton whites still matter.
Low-bleed whites contain chemistry designed to help fight dye migration. On 100% cotton, that may not always be necessary.
In some production environments, especially automatic shops where garments come off the dryer quickly and are stacked while hot, low-bleed additives can sometimes contribute to ghosting or shadowing. This can become worse if shirts are stacked hot and the print is undercured.
The anti-bleed chemistry can leach or gas into the back of the shirt and leave a shadow image.
This is not usually a problem on every job, but it is something professional printers should understand.
Use cotton white when:
- Printing 100% cotton
- Bleed resistance is not needed
- Soft hand matters
- You want strong opacity without extra bleed-blocking chemistry
- You want a clean white for cotton-specific jobs
KolorMatrix cotton white options
- ADV121 Cotton Super Opaque White — Standard Cure
- ICC7038 Blaze Cotton White — Flex Cure
2. Bright HO/LB White
HO/LB means High Opaque / Low Bleed.
This is the everyday workhorse category for many screen printing shops.
Years ago, this category may have been called something like “econo white” or “basic low-bleed white,” but the industry now uses more polished terminology. In practical terms, this is a general-purpose white designed to give good opacity with some bleed resistance.
Bright HO/LB white is often used on:
- Cotton
- 50/50 blends
- Cotton/poly blends
- Some 100% polyester garments with testing and user discretion
This category is useful when you do not want to switch inks constantly and need one white that can handle a variety of common garments.
Strengths
- Good everyday opacity
- More bleed resistance than cotton white
- Works across common garment types
- Useful for mixed production
- Good underbase option for many shops
Limitations
Bright HO/LB white is not always the safest choice for difficult polyester.
If you are printing on 100% polyester, sublimated garments, performance wear, or garments with aggressive dyes, you may need a stronger poly white or barrier system.
Use Bright HO/LB white when:
- You print cotton and blends
- You need one general-purpose shop white
- You want better bleed resistance than cotton white
- You are printing common 50/50 and blended garments
- You are willing to test before using it on risky polyester
KolorMatrix Bright HO/LB white options
- ADV120 X2 HO/LB White — Standard Cure
- TRQ131 Smooth HO/LB White — Low Cure
- ICC7022 Cool HO/LB White — Flex Cure
3. Performance HO/LB White
Performance HO/LB white is the premium production category.
These whites are often designed for better brightness, faster flashing, stronger opacity, better bleed resistance, and improved production performance.
This category may include whites with:
- Faster flash times
- Lower gel temperatures
- Higher opacity
- Stronger bleed resistance
- Optical brighteners
- Better production consistency
- Better brightness on press
Some highlight whites can also fall into this category. A highlight white is often lower viscosity and designed mainly to be printed last in areas where you want a clean, bright white finish.
Use Performance HO/LB white when:
- You want a premium everyday white
- You need better opacity and brightness
- You print on cotton, 50/50, blends, and some polyester
- You want faster production performance
- You want better bleed resistance than a basic HO/LB white
- You are printing underbases and highlight whites in higher-quality work
KolorMatrix Performance HO/LB white options
- ICC Unicron White — Flex Cure
- ICC7014 Legacy White — Flex Cure
- ADV135 Dreamy HO/LB White — Standard Cure
- ADV125 Brite Tiger HO/LB White — Standard Cure
- ADV140 Wicked HO/LB White — Standard Cure
4. Poly White
Poly white is designed for high bleed resistance.
This category is built for garments where dye migration is a serious concern.
Use Poly White on:
- 100% polyester
- Tri-blends
- Athletic garments
- Performance wear
- Difficult poly blends
- Dark dyed polyester
- Garments with higher bleed risk
Poly whites usually offer:
- Maximum bleed resistance
- High opacity
- Strong blocking performance
- Better protection on problem fabrics
But there are tradeoffs.
Poly whites are often:
- Thicker
- Heavier
- Harder to print
- More demanding on mesh and squeegee setup
- Less soft than cotton whites
That does not make them bad. It means they are built for a tougher job.
Use Poly White when:
- You are printing polyester
- You are printing tri-blends
- You suspect dye migration
- The garment is expensive or risky
- Failure would be costly
- Low bleed protection matters more than soft hand
KolorMatrix Poly White options
- Poly Ice HO/LB White — Low Cure
- Poly Max HO/LB White — Standard Cure
- ICC7041 Paramount HO/LB White — Flex Cure
5. Barrier Gray
Barrier Gray is for the most difficult bleed problems.
This is not normally used as the final bright white layer by itself. It is used as a blocking layer under a white top coat.
Barrier Gray is an excellent choice for:
- Digital camo
- Sublimated polyester
- Difficult dyed polyester
- High-end polyester garments
- Garments where replacement cost is high
- Jobs where dye migration failure would be expensive
Barrier Gray offers extreme bleed blocking and phenomenal opacity as a barrier layer.
But it must be used correctly.
You typically print the barrier gray first, flash or gel it properly, then print a Poly White or Performance White as the top/highlight white.
Use Barrier Gray when:
- The garment is known to bleed badly
- You are printing digital camo or sublimated polyester
- The job is high value
- You need maximum insurance against dye migration
- A normal low-bleed white is not safe enough
KolorMatrix Barrier Gray options
- ICC7043 Guardian Gray — Flex Cure
- TRQ880 Barrier Grey — Low Cure
Cure Types: Standard Cure, Low Cure & Flex Cure
Most white ink categories can be available in different cure systems depending on the manufacturer.
The ink type matters.
The cure type matters too.
A cotton white, low-bleed white, poly white, and barrier gray may all behave differently depending on whether they are standard cure, low cure, or flex cure.
Standard Cure
Standard cure inks are used for normal production where the garment can handle standard plastisol cure temperatures.
Best for:
- Cotton
- Standard garments
- Jobs where dye migration is not a major concern
- Shops using traditional cure settings
Standard cure is dependable when the garment and ink are matched properly.
Low Cure
Low cure inks are designed to cure at lower temperatures.
Best for:
- Polyester
- Blends
- Heat-sensitive garments
- Performance fabrics
- Reducing dye migration risk
- Reducing scorching risk
Low cure does not mean “no cure.”
The full ink film still must reach the correct cure temperature for the correct amount of time.
Flex Cure
Flex cure inks are designed for stretch and flexibility.
Best for:
- Stretch garments
- Performance wear
- Athletic apparel
- Blended fabrics
- Prints that need better elongation
- Jobs where cracking is a concern
Flex cure is useful when the fabric moves and the print needs to move with it.
Important reminder
Do not choose ink only by fabric.
Choose by:
- Fabric type
- Dye migration risk
- Garment stretch
- Cure temperature
- Print method
- Desired hand feel
- Opacity requirements
- Production speed
A low-bleed white in the wrong cure range can still fail.
A low-cure ink that is undercured can still crack or wash out.
A flex ink that is too thick can still feel heavy.
The system must match the job.
White Plastisol Ink Type Selection Guide
| Ink Type | Best For | Bleed Resistance | Opacity | Hand Feel | Notes |
|---|---|---|---|---|---|
| Cotton White | 100% cotton | Low | High | Softer | Best when bleed resistance is not needed |
| Bright HO/LB White | Cotton, 50/50, blends | Medium | High | Medium | Everyday general-purpose white |
| Performance HO/LB White | Cotton, blends, some poly | Medium-High | High | Medium | Brighter, faster, stronger production white |
| Poly White | 100% poly, tri-blends, athletic wear | Very High | Very High | Heavier | Maximum bleed resistance, thicker feel |
| Barrier Gray | Digital camo, sublimated poly, extreme bleed risk | Maximum | Very High blocker | Heavier system | Must be topped with white |
KolorMatrix White Ink Selection Chart
| Category | Product | Cure Type | Best Use |
| Cotton White | ADV121 Cotton Super Opaque White | Standard Cure | 100% cotton, maximum cotton opacity, softer hand |
| Cotton White | ICC7038 Blaze Cotton White | Flex Cure | Cotton jobs needing stretch/flex performance |
| Bright HO/LB White | ADV120 X2 HO/LB White | Standard Cure | General-purpose HO/LB white for cotton, 50/50, blends |
| Bright HO/LB White | TRQ131 Smooth HO/LB White | Low Cure | Lower-temperature HO/LB option for blends and heat-sensitive jobs |
| Bright HO/LB White | ICC7022 Cool HO/LB White | Flex Cure | Flexible HO/LB option for cotton, blends, and stretch needs |
| Performance HO/LB White | ICC Unicron White | Flex Cure | Premium bright white, strong production performance |
| Performance HO/LB White | ICC7014 Legacy White | Flex Cure | Premium HO/LB white with flex performance |
| Performance HO/LB White | ADV135 Dreamy HO/LB White | Standard Cure | Premium production white for opacity and brightness |
| Performance HO/LB White | ADV125 Brite Tiger HO/LB White | Standard Cure | Bright production HO/LB white |
| Performance HO/LB White | ADV140 Wicked HO/LB White | Standard Cure | Premium HO/LB white for higher-performance printing |
| Poly White | Poly Ice HO/LB White | Low Cure | Polyester and heat-sensitive poly blends |
| Poly White | Poly Max HO/LB White | Standard Cure | High-opacity, high-bleed-resistance polyester white |
| Poly White | ICC7041 Paramount HO/LB White | Flex Cure | Polyester/blends needing flex and strong bleed resistance |
| Barrier Gray | ICC7043 Guardian Gray | Flex Cure | Maximum bleed-blocking barrier under white |
| Barrier Gray | TRQ880 Barrier Grey | Low Cure | Low-cure barrier for difficult polyester/dye migration jobs |
Quick Pick Guide
Printing 100% cotton?
Start with Cotton White.
This gives you strong opacity and a softer hand without unnecessary bleed-blocking chemistry.
Printing mixed cotton/blend jobs?
Start with Bright HO/LB White.
This is the everyday category for shops printing cotton, 50/50, and common blends.
Want a brighter, faster, more premium production white?
Move into Performance HO/LB White.
This category is a great choice when you want better production performance, brightness, flash speed, or bleed resistance.
Printing polyester, tri-blends, or athletic garments?
Use Poly White.
This gives you stronger bleed resistance for higher-risk garments.
Printing digital camo, sublimated polyester, or expensive problem garments?
Use Barrier Gray plus a white top coat.
Barrier Gray is an excellent investment when garment replacement costs are high or dye migration risk is extreme.
Always Test Polyester Before Production
Polyester can be unpredictable.
Two garments can look similar but behave differently under heat.
Before printing a full production run, test:
- Cure temperature
- Bleed resistance
- Flash temperature
- Stretch
- Opacity
- Hand feel
- Wash durability
This is especially important with:
- Red polyester
- Dark polyester
- Digital camo
- Sublimated garments
- Performance wear
- Fleece
- Tri-blends
- Expensive garments
Testing is cheaper than replacing the order.
If the Garment Is Expensive, Choose the Safer Ink System
A cheaper ink choice can become expensive if it fails.
If you are printing low-cost cotton shirts, the risk is different.
If you are printing expensive polyester hoodies, uniforms, jackets, or performance garments, the safer ink system may be the better investment.
For high-risk garments, consider:
- Poly White
- Low-cure white
- Flex cure white
- Barrier Gray
- Lower cure temperatures
- Wash testing
- Production samples
The more expensive the garment, the less you should gamble.
Common Mistakes When Choosing White Ink
Mistake 1: Using one white for everything
One white may work for many jobs, but not every job.
If you print a mix of cotton, blends, polyester, and performance garments, you probably need more than one white ink option.
Mistake 2: Using cotton white on polyester
Cotton white may print beautifully on cotton, but it is not designed to fight polyester dye migration.
Mistake 3: Using poly white when cotton white would be better
Poly white can be thicker and heavier. If you are printing 100% cotton and do not need bleed resistance, cotton white may give a softer result.
Mistake 4: Ignoring cure type
Standard cure, low cure, and flex cure are not interchangeable.
Use the cure system that fits the garment and ink.
Mistake 5: Skipping testing
Testing is especially important for polyester and blends.
Never assume that because a garment printed well once, every garment of the same color will behave the same way.
Final Thought
Choosing the right white ink is not about finding one universal answer.
It is about matching the ink to the garment, the print method, the cure system, and the risk level.
For 100% cotton, a cotton white may be the best choice.
For everyday mixed work, a Bright HO/LB white may be the practical option.
For premium production work, a Performance HO/LB white may give better results.
For polyester and blends, a Poly White may be necessary.
For extreme bleed problems, Barrier Gray may be the safest system.
The right white ink saves time, improves print quality, and helps prevent costly failures.
Choose the white that fits the job.
Not just the one that happens to be open on the shelf.