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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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

🔥No-sew iron-on bond

🧵Double-sided adhesive

🧘‍♂️Ultra-soft, stretch-friendly

¥3021

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔥 Fuse fashion and function—bond boldly without a stitch!

FEATHERLIGHT FEEL - Maintains fabric softness and flexibility—no added bulk, just pure comfort.
DOUBLE SIDED STRENGTH - Adheres both sides for a secure, permanent hold that moves with your stretch fabrics.
EFFORTLESS NO SEW BONDING - Skip the needle—iron-on adhesive fuses fabrics instantly for a flawless finish.
TIME SAVING CRAFTING ESSENTIAL - Cut your project time in half with heat-activated bonding that lasts wash after wash.
VERSATILE FABRIC COMPATIBILITY - Perfect for knits, spandex, fleece, denim, and more—your go-to for stretch projects.

HeatnBond 3540 Soft Stretch Ultra is a lightweight, double-sided iron-on adhesive tape designed specifically for stretch fabrics. It creates a permanent, no-sew bond that maintains fabric softness and flexibility, making it ideal for knits, spandex, fleece, and stretch denim. This 5/8" x 10-yard roll offers a hassle-free, heat-activated solution for professional-quality fabric bonding without added bulk.

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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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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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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