Can You Iron Acrylic Yarn? – (Here’s How)

Last Updated on August 16, 2023

If you’re a dedicated yarn enthusiast, you might have wondered whether using iron on acrylic yarn is safe. Well, wonder no more! Here, I’ll walk you through steam-blocking acrylic knits, a handy technique to achieve that polished and well-defined look for your projects.

Steam blocking is particularly useful for acrylic yarn, and I’ll show you step-by-step how to do it without risking any yarn mishaps.

Can You Iron Acrylic Yarn

Can you iron acrylic yarn?

Yes! You can safely iron acrylic yarn to enhance its look. Begin by setting your iron to medium heat with low steam. Lay your acrylic knit on an ironing board covered with a cloth. Hold the iron above the knit, allowing the steam to relax the yarn. Focus on curled edges and ribbing. Use a pillowcase or steam block underneath by folding back sections for delicate spots. Steam block until you achieve the desired results, taking care not to overheat and melt the yarn.

Step by Step Full Guide

Here In this easy guide, I’ll show you how to use an iron to steam block acrylic knits, making your creations look their best without any mishaps:

Step 1: Gather Your Supplies

You’ll need an ironing board, an old hand towel or cloth, a steam iron, and your acrylic knit project.

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Step 2: Set Up the Iron

Fill your steam iron with water, making sure it’s securely closed. Set the iron to medium heat and the steam setting to low. Be careful not to make it too hot, as acrylic yarn can melt.

Step 3: Prepare Your Project

Lay your acrylic knit flat on the ironing board. Place the old hand towel or cloth over it to protect it from direct heat.

Step 4: Start Steam Blocking

Hold the steam iron over the acrylic knit, but don’t touch it. The steam will relax the yarn and help reshape the stitches. Pay extra attention to areas like ribbing or curled edges.

Step 5: Use a Pillowcase

Place a pillowcase over the project and steam block on top of the cloth for larger or delicate areas. This method applies heat and moisture evenly to relax the yarn.

Step 6: Focus on Details

For tight stitches or intricate patterns, fold back sections of the project and steam block underneath using the thin part of the iron. This ensures every stitch is relaxed.

Step 7: Be Patient

Continue steam blocking until you’re satisfied with how your project looks. Acrylic yarn is forgiving, so you can experiment and adjust as needed.

Video: How to Block 100% Acrylic Yarn


So, You can safely steam block acrylic yarn to give your projects a professional finish. With these simple steps, you can enhance your acrylic knits and enjoy seeing your creations transform. Give it a try and elevate your acrylic knitting game with steam blocking!