What Product Should I Use to Seal a Print on a Shirt?

Sealing a print on a shirt is crucial for preserving its quality, preventing fading, and ensuring durability through multiple washes. Whether using screen printing, heat transfer, or sublimation, selecting the right sealant enhances the longevity of the design.

The best products for sealing prints on shirts include heat-seal additives¹, fabric sealant sprays², and specialized textile coatings³. These products help protect prints from cracking, peeling, and fading over time.

This guide explores the importance of sealing prints, recommended products for different printing methods, and best practices to maintain print quality.

Understanding the Importance of Sealing Prints on Shirts

Why is it necessary to seal prints on fabric?

Sealing a print helps lock in the ink or transfer material, ensuring durability and resistance to washing and wear.

Applying a sealant protects printed designs from fading, cracking, or peeling, enhancing their lifespan and overall quality.

Screen printing setup

Key Benefits of Sealing Shirt Prints

• Increases durability – Prevents cracking and peeling.
• Enhances color retention – Keeps prints vibrant after multiple washes.
• Provides fabric flexibility – Maintains the softness of the shirt.

What are the consequences of not sealing a print properly?

Without proper sealing, prints may deteriorate quickly, leading to poor customer satisfaction and frequent reprints.

Unsealed prints are more susceptible to washing damage, leading to faded designs, reduced adhesion, and an overall shorter lifespan.

Common Problems with Unsealed Prints

Types of Sealants for Different Printing Methods

What sealants are recommended for screen printing?

Screen printing uses plastisol or water-based inks that require proper sealing for durability.

Heat-set additives and textile sealants are the best options for sealing screen-printed designs. They enhance ink adhesion and prevent premature fading.

Recommended Sealants for Screen Printing

• Heat-Set Additives – Mixed with ink for better curing.
• Textile Sealant Sprays – Provides an extra protective layer.
• Matte or Gloss Finishing Coatings – Adds texture and enhances durability.

How do heat transfer prints benefit from sealing products?

Heat transfer prints, including vinyl and sublimation, benefit from protective sprays and finishing coatings.

Sealants for heat transfer prints prevent peeling and maintain vibrancy, especially on cotton and blended fabrics.

Best Sealants for Heat Transfers

Applying Sealants: Best Practices and Techniques

How can I apply a sealant evenly on a printed shirt?

Proper application ensures uniform protection and prevents streaks or buildup.

To apply sealants evenly, use a spray bottle or brush and follow smooth, controlled motions for even distribution.

Best Application Techniques

• Spray Application – Hold 8-12 inches away for even coverage.
• Brushing Method – Use a foam brush for thick sealants.
• Heat-Setting – Cures the sealant for long-term adhesion.

What drying methods ensure the best results after sealing?

The drying process plays a crucial role in the effectiveness of the sealant.

For the best results, allow the sealant to air dry, then use heat-setting methods like a heat press or curing oven to ensure proper adhesion.

Recommended Drying Methods

Top-Rated Products for Sealing Shirt Prints

Which sealants are highly recommended by professionals?

Professional-grade sealants provide long-lasting protection and enhance print quality.

The most recommended sealants include heat-seal additives, clear acrylic sprays, and flexible textile coatings.

Top-Rated Sealants

• Speedball Fabric Fixative – Great for water-based screen prints.
• Krylon Clear Acrylic Coating – Works well for heat transfer prints.
• Permaset SuperCover Textile Sealer – Used for high-quality screen printing.

What are the pros and cons of using aerosol versus liquid sealants?

Both aerosol and liquid sealants have their advantages depending on the application method.

Aerosol sealants offer quick, even coverage, while liquid sealants provide a thicker protective layer.

Comparison of Aerosol vs. Liquid Sealants

Maintaining Print Quality After Sealing

How should I wash shirts after applying a sealant?

Proper washing techniques help preserve sealed prints and prevent premature fading.

Wash sealed shirts inside-out in cold water and avoid harsh detergents to maintain print integrity.

Washing Tips for Sealed Prints

• Use mild detergent – Avoid bleach or strong chemicals.
• Wash in cold water – Hot water can break down the sealant.
• Hang dry when possible – Reduces heat exposure from dryers.

What common mistakes should be avoided to prolong print life?

Avoiding simple mistakes can extend the lifespan of printed shirts.

Common errors include improper curing, over-washing, and using harsh cleaning agents.

Mistakes to Avoid

Conclusion

Sealing a print on a shirt is essential for maintaining its quality, durability, and vibrancy. Different printing methods require specific sealants, such as heat-set additives for screen printing and textile coatings for heat transfers. By following proper application and drying techniques, as well as adopting good washing practices, you can significantly extend the life of printed designs on shirts.