Home » Blog » How to tie dye swim trunks? Table of Contents Recently, the trend of tie dying clothes yourself has been on a huge rise. People have been dying every kind of outfit imaginable, like t-shirts, shorts, hoodies, and so much more. The trend became increasingly popular because it creates an intricate and unique pattern on plain clothes and is super affordable to do. Moreover, who doesn’t love a nice DIY project that you can wear and show off? If you want to hop on to the bandwagon, we can help. Want to learn how to die swim trunks? Well, we’ve got you covered! Blue Lagoon 2-Pack Swim Shorts $80 Select options Lounge Pack $160 Select options Striped Turtle Swim Shorts $60$36 Select options Dots Swim ShortsRated 5.00 out of 5 $60 Select options Step by step guide: How to tie dye swim trunks? I’ve tie-died many clothes before but never swim trunks. However, I have a pair that I’d really like to try it out on. So, the real question is how to tie dye swim trunks? How exactly is it done? To dye swim trunks you should use a dye that’s made for synthetics. Pour the dye into hot water and then submerge your swim trunks. Let it dye by letting it sit for 30- 60 minutes, then pick the swim trunks up from the water and rinse in cold water. Let’s see that in an easy list: 1. Heat up a pot of water to just below boiling temperature 2. Crinkle your swim trunks into a ball and put rubber bands around it 3. Add dye to the almost boiling water. Follow the instructions on the bottle 4. Add in your swim trunks 5. Wait for 30-60 minutes 6. Take your swim trunks out and rinse them in cold water until no more dye comes out (the water should be clear) 7. Remove the rubber bands In this post, we’ll go through the different questions you might have when dying swim trunks. How to tie dye swim trunks infographic What dye should I use for swim trunks? The most crucial aspect while dying your swim trucks is the type of dye you use. This will determine how well the color is transferred onto the swim trunks along with the longevity. There are multiple dyes that you can use for swim trunks depending on the final outcome that you are expecting. Here are a few options that you can try. All of these work well with the swim trunks from Decisive Beachwear. Remember that a general rule of thumb is to wash your swim trunks before you begin the dying process. For swim trunks we recommend going with a quality dye like Rit Not sure what material your swim trunks are? Read our guide on swim trunks materials here. Tile $60 Select options Ruby $60 Select options Popsicle Swim ShortsRated 4.00 out of 5 $60 Select options Pink Striped Matching Couples Swimwear $80 Select options Acid dyes Acid dyes will give you the most long lasting result with vibrant colors. Make sure to read the label of the acid dye you bought to double check whether it supports swimwear or not. If you plan to dye something that already has a color, try to pick out a dye that is darker. Any dyes lighter than your swim trunk’s color is unlikely to show up. Disperse Dyes Disperse dyes were created specifically for synthetic fibers. This is what swim trunks are made out of. They do have a few extra steps, but the results are definitely worth it. The only additional step is that you have to soak your swim trunks in warm water and add soda ash. Mix this for around ten minutes as the soda ash dissolves. You can substitute the soda ash with synthrapol or any other agent that will help the dye set into synthetic fibers. While using dispersed dyes, make sure you use rubber gloves and have a face mask and apron on. Along with this, pick a room that is ventilated well, or take your DIY project outside for extra safety. Pineapple Watermelon Swim ShortsRated 5.00 out of 5 $60 Select options Emerald $60 Select options Turtle Matching Couples Swimwear $80 Select options Turtle Swimsuit $49 Select options Vat dyes These dyes are natural and insoluble in water. There are a few extra steps in this so that it can be converted into a soluble dye by a process called vatting before you begin creating your men’s tie dye swim trunks. They can be a little expensive, but they have the best longevity. The first step is the reduction of the dye or vatting. In this process, you have to use a combination of any reducing agent and an alkali. This allows the dye to become water soluble. After this, you can dye your clothes as usual. For the dye to stay in your swim trunks, you’ll need to let it dry completely in the open air. This is because a process called oxidation is necessary for the dye to attach itself to your swim trunks. Does tie dye come off in the pool? Tie dye can come off in the pool due to a number of reasons. To prevent the color from fading or coming off, avoid all these mistakes: Using a cheap and poor quality dye If you plan to wear your swim trunks frequently, whether it’s pastel or bright, it will come off if you use poor quality dyes. If you plan to wear it once or twice, you can get away with it. However, if you want to wear it for a long time, it is best if you invest in dyes that have good quality. Flamingo swim shortsRated 4.50 out of 5 $60 Select options Ducks – Father and Son $70 Select options Blue Striped Swimsuits $65 Select options Pineapple Palm Blue Swim Shorts $60$36 Select options Using the incorrect dye Since swimming trunks are made of synthetic fibers, you’ll need to use a dye that is meant for them, like the ones listed above. If you use a dye that doesn’t support that kind of fabric, if it manages to transfer color, the chlorine will break it down, and it will come off over time. It will also transfer to other clothing while you wash it. Pink tie dye swim trunks Chlorine Choline is added in most swimming pools to keep it from harboring bacteria. Most places do not use anything that is too harsh, so make sure the chlorine you’re using in your pool is not too concentrated as well. Not only does will this cause your tie dye to come off over time, but it could dry out and damage your skin as well. If you want your tie dye to stay in place no matter what, you may want to invest in more expensive dyes that stay put, such as vat dye. Flamingo swim shortsRated 4.50 out of 5 $60 Select options Ducks – Father and Son $70 Select options Blue Striped Swimsuits $65 Select options Pineapple Palm Blue Swim Shorts $60$36 Select options Sunlight The sun has the ability to cause most dyes to fade. This includes your tie dyed swim trunks. A good practice is to keep them out of the sun and put them in a dryer when they’re wet. Indoor pools are also a good idea as this prevents too much sun from touching your swim trunks. Staying out of the scorching is good for your health, too, so keeping the color on your tie dyed swim trunks is an added bonus. Not pretreating before the first wear A good practice to lock in the color of your tie dye swim trunks is to pretreat them. To do this, add two tablespoons of vinegar to some cold water. Let it soak for about thirty minutes. The vinegar penetrates the swim trunks and seals the color in so that it lasts longer. How to wash swim trunks after tie dye? Washing your swim trunks after they have been dyed may seem a little tricky, but this is actually much simpler than you think. You just have to be a little careful, and the color won’t fade too fast. Here are a few tips that will help: Always pretreat After dying, make sure that your swim trunks have been pretreated. If you skipped this and it’s time to wash them, pretreat them before washing. Check if your swim trunks are safe for machine washing All swim trunks come with a label that explains whether they can be washed in a washing machine or need to be hand washed. Regardless, we recommend that you wash them without one. This is more likely to preserve color as hands are gentler than a washing machine. Avoid harsh detergents and boosters Any harsh detergents or ones that contain bleach can cause your swim trunks to bleed. This goes the same for scent boosters or any other washing supplies. Make sure your detergents are free from these so that they can last longer. Wash them separately It is best to always wash your tie dyed swim trunks separately. This will prevent your other clothes from ending up pink and purple, and you will be less prone to accidentally using the wrong detergents or water temperature. Place them in a laundry bag If you plan to use a washing machine, place your swim trunks in a mesh laundry bag. This prevents it from getting caught anywhere. Along with this, be sure to opt for the gentle or delicate cycle of your washing machine. Use cold water Cold water is good for the dye and the material of your swim trunks as well. Hot water makes it more likely for the color to bleed. Never make the mistake of using hot water for your tie dyed swim trunks. If you want to better understand how to wash your swim trunks in general please see out guide on how to wash swim trunks How to wash swimwear Flamingo swim shortsRated 4.50 out of 5 $60 Select options Ducks – Father and Son $70 Select options Blue Striped Swimsuits $65 Select options Pineapple Palm Blue Swim Shorts $60$36 Select options Conclusion Now that you know how to dye swim trunks, you can dye as many as you like and show off your unique style. Say goodbye to plain trunks and uplift your closet with tie dyed swim trunks. You’ll have fun creating them and will be the center of attention at every pool party! Bestsellers Pineapple Watermelon Swim ShortsRated 5.00 out of 5 $60 Select options Kvalitetsaktiepodden x Decisive Beachwear $65 Select options Flamingo swim shortsRated 4.50 out of 5 $60 Select options Tropical 2-Pack Swim ShortsRated 5.00 out of 5 $80 Select options Tile $60 Select options Ruby $60 Select options Popsicle Swim ShortsRated 4.00 out of 5 $60 Select options Pink Striped Matching Couples Swimwear $80 Select options Read more Different types of men’s swim trunksBoard shorts with and without liner [Complete guide 2022]Board shorts vs. swim trunks, what’s the difference?Best men’s swim shorts for your body type8 things you need to know about Jon Olsson Jonatan RosdahlI’ll write about anything and everything related to swimwear!