What is the difference between the lite and ultra of this product? Is it for different fabrics or is the strength of the bond different?

The Lite is a sew-in adhesive and the Ultra is a no-sew adhesive. There is no difference in strength as both are permanent.

Would this work well to keep a ribbed knit button down shirt from gapping at the chest? (Really hate using pins)

Depends upon what's causing the gap. It probably would but it would be a pull over instead of button down then. If it does pull back apart after you wear it you can always use the iron to completely remove and reapply new again.

Can this be used like a stretch fabric iron-patch for a snag in gym leggings? If not, is there a product that would?

You will need to make a patch out of similar fabric to your gym leggings as this is a double sided permanent adhesive. We recommend pretesting the adhesive.

Will this adhere to nylon?

It hasn't been tested with nylon, so we recommend pretesting the Soft Stretch Ultra with nylon.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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HeatnBond 3540 Soft Stretch Ultra 5/8" x 10 Yard

HeatnBond 3540 Soft Stretch Ultra 5/8" x 10 Yard

Product ID: 39699138

Details

Brand
HeatnBond
Color
White
Material
Spandex
Number of Items
1
Special Feature
Stretch

🔥Strong permanent bond

🧩Ultra-flexible stretch

🧵No sewing required

¥3021

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🧵 Fuse fashion with function—bond that bends, never breaks!

DOUBLE SIDED STRENGTH - Adhesive on both sides ensures maximum hold and durability.
QUICK RELIABLE FIXES - Perfect for hemming, repairs, and customizations in minutes.
SOFT LIGHTWEIGHT FINISH - Maintains fabric’s natural hand feel—no stiffness, no compromise.
EFFORTLESS IRON ON ADHESION - Skip the needle—just iron for a seamless, permanent bond.
DESIGNED FOR STRETCH FABRICS - Moves with your knits, spandex, denim & more without adding bulk.

HeatnBond 3540 Soft Stretch Ultra is a 5/8" x 10-yard iron-on adhesive tape engineered for stretch fabrics. It offers a permanent, double-sided bond that moves with your fabric without adding bulk or stiffness. Ideal for knits, spandex, denim, fleece, and flannel, it enables no-sew hemming and repairs with professional results, making it a must-have for quick, durable fabric fixes.

Specifications

ASIN	B01N1T2IYZ
Adhesive Format	Sheet
Adhesive Location	Double Sided
Adhesive Side Count	2
Best Sellers Rank	#160,967 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #229 in Fabric Adhesives
Brand Name	HeatnBond
Color	White
Compatible Material	Fabric
Customer Reviews	4.4 4.4 out of 5 stars (1,247)
Global Trade Identification Number	00000943035404
Included Components	HeatnBond® Ultra Soft Stretch™ 5/8 in x 10 yd roll
Item Type Name	Iron-On Adhesive Tape
Item Weight	9.07 g
Manufacturer	Therm O Web
Material Type	Spandex
Model	3540
Number of Items	1
Number of Packs	1
Other Special Features of the Product	Stretch
Part Number	3540
Size Name	5/8" x 10 yd
UPC	000943035404
Unit Count	30 Feet
Water Resistance Level	Not Water Resistant

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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