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Seam Sealing Tape for PUL


Product Description

Seam Sealing Tape for Waterproof PUL Fabric

Sample: 8 inches

Width: 3/4 inch | 20 mm

Color: Clear

This tape is especially made to seal sewn seams on waterproof, breathable PUL. Works with all Eco-PUL™ solids and prints.

Seam sealing tape is applied to the laminate side of PUL fabric. Our seam sealing tape is meant for two-layer PUL (one layer polyester knit bonded to one layer polyurethane) where it can be bonded to the laminate side. It is not meant for use with three-layer PUL (sandwich PUL) where the laminate is hidden between two layers of fabric.

Use with any project where you want to prevent liquid from seeping through a seam where two pieces of PUL are sewn together. For example, use to seal seams on wet bags, pieced diapers, and raincoats.

This tape can be applied to PUL laminate using an ordinary home iron. The tape melts at a lower temperature than Eco-PUL laminate, which means you can iron it in place without damaging the PUL lamination. After bonding, the tape is waterproof and breathable.

Use and Care: Seam sealing tape should be applied using a household iron or mini craft iron on a medium heat, the silk/polyester/wool setting, which is approximately 300-320 degrees F. We recommend experimenting with a small scrap of PUL and seam sealing tape before beginning your project to see which setting works best with your iron, as many irons do not have exact temperature settings. The tape should bond to the laminate without melting the PUL. If the tape peels off, the temperature is too cool. If the PUL melts, the temperature is too hot. After experimenting, test wash and dry. **Please note that drying on high heat could cause the seam sealing tape to melt and fall off.


Made in Japan. CPSIA compliant. Does not contain hazardous substances. Contains no heavy metals, no pentachorophenyl, no halogenated hydrocarbons. No toxic substances are produced during heat sealing. 

Sold by the 5 Yard Package or 218 Yard Roll.

Includes instructions.

Product Reviews

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  1. seam sealing tape. 4 Star Review

    Posted by on 14th Mar 2017

    Works great.A little tricking in getting it ironed on.But after a few tries getting the temperature right and using another piece of fabric to protect the PUL form melting it works great.Used it on the lower seams of my wet bags.DSS does a great job with packing all your items.

  2. Fabulously easy to work with 5 Star Review

    Posted by on 14th Aug 2016

    I finally had to break down and order the 218 yard roll of this seam sealing tape. I had previously purchased the 5 yard piece a few times and it was just time to bite the bullet on the larger amount. I needed to make sure that I would actually use it - I use this to seal the seams of wet pouches i make from the waterproof oxford to sell in my shop. I also use it to seal seaming mistakes when sewing with PUL. I have tried another brand of sealing tape that is much wider and thicker than this one. This is easier to work around the 1/4" seam allowances and still cover both sides of the seam stitching. I would include a picture of one of my bags but there is no attachment ability for this review.

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