does it work on cell phones ?

I used the permatex 81730 flowable silicone on a cracked screen on an ipad. The corner of the ipad had hit a hard surface and fractured the corner without interfering much with the rest of the screen. I thought I would try the flowable silicone and see how well it worked. I was mainly hoping to keep small pieces from slowly falling out and destabilizing the rest of the glass in the corner. The flowable silicone works as promised. When applied it flows out over the affected area much better than regular silicone. However, it doesn't permeate the crack and basically sits on top of the glass itself. In my experience it did stabilize the corner but left a raised place above the glass that obviously felt like silicone and eventually began peeling off. I eventually had to peel it off the surface of the glass and I haven't as yet replaced it. That's all the info I can share about it... but that was my experience.

can this be used to adhere the black strip to the front windshield?

100%. It gets messy on your hands but it will do its job. I did on my windshield which had a gap and the air was coming in while driving... After sealing it.... It is perfect.

Would this work on a car headlight housing to keep away moisture?

Yes it would as the silicone in it would prevent any water from getting in , also depends how big your Crack is .

Will this work for a glass door that has a small crack (about 2 inches)?

YES---but it will run down if not masked off. Not perfectly clear. Any run down or thick area can be trimmed/shaved off with razor. The crack needs some open space for the fluid to penetrate.

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Permatex 81730 Flowable Silicone Windshield & Glass Sealer, Helps Seal Leaks in Hidden and Hard to reach Areas, Forms a tough waterproof durable clear seal 1 x 42g

Permatex 81730 Flowable Silicone Windshield & Glass Sealer, Helps Seal Leaks in Hidden and Hard to reach Areas, Forms a tough waterproof durable clear seal 1 x 42g

Product ID: 63644030

Details

Brand
Permatex
Item dimensions L x W x H
20.3 x 10.2 x
Item weight
1.5 Ounces
Material
Silicone
Style
Compact

💧Waterproof & weatherproof seal

🔍Flows into hidden, hard-to-reach leaks

🌡️Temp range -80°F to 400°F

AR$62201

Duties & taxes included

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Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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

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Description

🔧 Seal the deal with invisible strength – don’t let leaks steal your drive!

CHEMICAL SHIELD - Resists most shop chemicals, ensuring long-lasting protection in any garage or workshop environment.
LEAK HUNTER EXTRAORDINAIRE - Flows effortlessly into the tiniest cracks and crevices, sealing leaks others miss.
EXTREME TEMPERATURE WARRIOR - Withstands brutal cold and scorching heat from -80°F to 400°F without cracking or losing grip.
SHOCK VIBRATION RESISTANT - Built tough to endure daily road vibrations and shocks, keeping your seal intact mile after mile.
INVISIBLE ARMOR FOR YOUR GLASS - Creates a crystal-clear, durable seal that blends seamlessly with your windshield.

Permatex 81730 Flowable Silicone Windshield & Glass Sealer is a high-performance, clear silicone sealant designed to flow into hidden and hard-to-reach areas, forming a tough, waterproof, and durable barrier. It resists extreme temperatures (-80°F to 400°F), vibration, shock, weather, and most shop chemicals, making it the go-to solution for professional-grade leak sealing on glass surfaces.

Specifications

ASIN	B000BKEBO0
Best Sellers Rank	1,281 in Automotive ( See Top 100 in Automotive ) 18 in Fillers, Adhesives & Sealants
Brand	Permatex
Colour	Clear
Compatible Material	Glass
Country Of Origin	USA
Customer Reviews	4.3 4.3 out of 5 stars (5,734)
Global Trade Identification Number	00686226817303
Item Dimensions	20.3 x 10.2 x 2.5 centimetres
Item Form	cylindrical
Item Weight	1.5 Ounces
Manufacturer	Permatex Products
Manufacturer Part Number	81730
Material	Silicone
Model Number	81730
Number of Items	1
Number of Packs	1
Style Name	Compact
Surface Recommendation	Glass
UPC	079340817302 686226817303
Unit Count	42.5243 gram
Water Resistance Level	Waterproof

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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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AR$62201

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered 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 Argentina.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

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