Choosing the Right Heat Transfer Flex: PVC vs. PU

When it comes to garment printing, selecting the right Heat Transfer Vinyl is a crucial decision that can significantly impact the outcome of your designs. Two popular and similar contenders in the market, PVC Flex and PU Flex, offer distinct features catering to various printing needs. Let's explore the key differences between these two options to help you make an informed choice for your next project.

Material Composition:

• PU Flex: Composed of Polyurethane, PU Flex boasts a semi-matte finish, adding versatility to its application.
• PVC Flex: Crafted from Polyvinyl Chloride, PVC Flex is known for its 100% matte surface with no reflection, providing a luxurious finish to printed designs.

Peel Application:

• PU Flex: Utilizes a hot peel, offering the advantage of immediate peeling post-heat pressing, potentially enhancing productivity.
• PVC Flex: Features a cold peel application, allowing for easy removal after cooling.

Layering and Versatility:

• PU Flex: Suitable for layering on PU and is available in various colors. Its semi-matte finish and environmental compliance (REACH compliant) make it a user-friendly option.
• PVC Flex: Known for superb wash durability, making it a reliable choice for long-lasting designs. It offers the flexibility of layering and comes in 32 colors, including glossy silver and gold options for unique effects.

Weeding and Cutting:

• PU Flex: Boasts smooth cutting, easy weeding, and clear cut lines, contributing to a hassle-free printing experience.
• PVC Flex: Very easy to weed, providing a straightforward cutting and weeding process.

Thickness and Adhesive:

• PU: Offers versatility with two layers (45-micron skin) and a 50-micron hot melt adhesive, providing options for various printing requirements.
• PVC Flex: Available in different thicknesses (125 microns for normal, 145 microns for neon) with a 60-micron hot melt adhesive.

• PU: is certified by SGS Report as free of hazardous substances in the flex. It also has EN71, CPSIA and REACH. 
• PVC Flex: is certified by SGS Report as free of hazardous substances in the flex.

In the PVC vs. PU dilemma, the choice ultimately depends on your specific project needs. If you're looking for a matte finish with superb wash durability and a variety of colors, PVC Flex might be your go-to option. On the other hand, if you prefer a semi-matte finish with the advantages of hot peel, layering on PU, and environmental compliance, PU could be the ideal choice. Consider factors such as finish preferences, peel application, and project requirements to make the best decision for your garment printing endeavors.

Happy printing!