Would this work for a 2019 21.5 4K iMac?

No. The tape strips work for a 27" monitor -- the length and placement of the notches won't suit a 21.5"

How difficult is it to remove this adhesive if the machine needs to be re-opened once sealed back up with these strips?

It is not hard to remove at all. One week after i used those strips, the screen fell off of my computer while i was sleeping. I bought a new screen but the logic board got damaged so now i have an 2020 i9 iMac that does not work. I would recommend the the 3M strips instead.

Is there any diagram how to use it? The strips look confusing and fragile. There must be a diagram provided either in this product page or in the box.

If you're talking about where the strips need to be installed I had wondered the same thing until I searched also on Ebay then it showed a diagram. #11 goes in the top left, #12 top right, #13 Right side and so forth all going clock wise in # order.

Anyone know if this will work on Late 2013 14,1 iMacs? 21.5”

14.1?it's fit for Late 2013 iMac 21.5" machine.

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LeFix Replacement LCD Panel Adhesive Tape Strip Sticker + Opening Wheel Tool Kit for iMac 27 inch A1419 Year 2012 2013 2014 2015

Product ID: 91375540

🎁Includes premium opening wheel tool kit

🖥️Fits iMac 27" A1419 (2012-2015)

🛠️6-piece adhesive strip kit

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฿1087

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Description

🖥️ Seal your iMac’s brilliance with pro-grade precision!

COMPLETE REPAIR KIT - Includes 6 premium adhesive strips plus a professional-grade opening wheel tool for effortless display removal.
PRO GRADE PACKAGING - Solid box protection keeps adhesive strips pristine until installation.
TRUSTED BY THOUSANDS - 4.6-star rating from over 2,300 tech pros who refuse to compromise on quality.
PRECISION FIT FOR I MAC 27 A 1419 - Tailored adhesive strips ensure seamless re-sealing for models 2012-2015.
DURABLE STRAIGHT ADHESIVE STRIPS - No folding or damage—guaranteed perfect application every time.

LeFix Replacement LCD Panel Adhesive Tape Strip Sticker Kit is a must-have for iMac 27" A1419 models from 2012 to 2015. This kit includes six straight, high-quality adhesive strips designed for perfect re-sealing after display removal, plus a premium opening wheel tool to simplify repairs and upgrades. Trusted by thousands with a 4.6-star rating, it ensures a flawless, dust-free installation every time.

Specifications

Best Sellers Rank	#17 in Computer & Mobile Device Repair Kits
Customer Reviews	4.6 out of 5 stars 2,371 Reviews

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18.01.2022

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5.07.2025

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16.06.2025

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฿1087

Duties & taxes included

In stock

Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Thailand.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

Neha S.

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