How do you dry this product? It stays sticky.

product doesn't dry stays pliable. Taillight gaskets etc.

Can this strip-calk be used for sealing gaps in sheet metal duct work in home's heating and conditioning system?

It could be used, but the color is black. They make duct sealant that is applied with a caulk gun that is meant to seal sheet metal duct work and the color is grey.

How many strips in the package?

i am pretty sure there are 60...the package is about 12 inches wide and on the side it says the material is 20 yards (60 feet)

Has anyone used this to seal a 3rd brake light in the roof of a late model pickup truck like a 2015 Ram?

This would certainly do the job, BUT it stays sticky forever. It could make removing the light to replace a bulb down the road difficult. On my 2014 Ram, I used MD Weatherstripping 01033 from the local hardware store. It's 5/16" H x 19/32" W. I had to cut wedges from the inside corners to shape it around the light. I used Permatex UltraBlack RTV (the UltraBlack is more flexible when cured than the standard black RTV) at the end joint (centered on the bottom) that I let cure for 24 hours before installing, so it took longer, but so far so good.

Strip Calk 08578 1 Ft Strips Black Soft Butyl Rubber

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Description

🖤 Seal smart, seal strong—because your joints deserve the best.

SOFT YET TOUGH SEAL - Flexible butyl rubber that won’t shrink or crack, ensuring long-lasting joint integrity.
PAINTABLE ON THE SPOT - Apply and paint immediately without rework—maintain flawless finishes effortlessly.
HEAT RESISTANT PERFORMANCE - Engineered to withstand high temperatures—perfect for firewalls and trunk seams.
BULK PACK FOR PRO EFFICIENCY - 60 strips per pack to keep your projects moving fast and your inventory stocked.
PERMANENTLY PLIABLE ZERO DOWNTIME - Ready to use immediately—no waiting, no mess, just smooth sealing.

3M Strip Calk 08578 offers 1-foot black soft butyl rubber strips designed for permanent elasticity and superior joint filling. Engineered for high-temperature environments like engine compartments and firewalls, this product remains pliable without shrinking or becoming brittle. Its no-mess, fast application and immediate paintability make it a professional’s go-to for durable, water-resistant sealing in automotive and industrial settings. Available in a convenient 60-pack, it’s optimized for efficiency and reliability.

Specifications

ASIN	B000PEZ1L4
Best Sellers Rank	#10,931 in Automotive ( See Top 100 in Automotive ) #79 in Automotive Sealants #641 in Oils & Fluids
Brand	3M
Brand Name	3M
Color	Black Color
Customer Reviews	4.4 out of 5 stars 1,081 Reviews
Full Cure Time	24 Hours
Global Trade Identification Number	00051135085783
Included Components	Automotive Accessorie3M Strip Calk, 08578, 1 ft Strips, Black, Soft Butyl Rubbes
Item Form	Strip
Item Type Name	3M Strip Calk
Item Weight	1.4 Pounds
Liquid Volume	3 Milliliters
Manufacturer	3M
Material Type	Rubber
Model	8578
Number of Items	1
Part Number	08578
Surface Recommendation	Plastic
UPC	753956449750 051135085783
Unit Count	60.0 Count
Warranty Description	Manufacturer Warranty
Water Resistance Level	Water Resistant

Reviews

J**S

1.08.2018

J**J

12.07.2017

H**R

6.12.2025

M**E

31.08.2023

F**K

16.09.2012

M**A

22.05.2020

T**S

1.12.2012

B**H

3.02.2026

A**R

4.04.2025

M**.

18.01.2026

A**R

19.01.2026

M**W

16.05.2017

F**N

8.10.2018

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

€ 94.65

Duties & taxes included

In stock

Sold byAmazon SpainDelivered 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 Spain.

Secure transaction

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Strip Calk, 08578, 1 ft Strips, Black, Soft Butyl Rubber, Permanent Elasticity, Joint Filling, Trunk Seams, 60 Pack

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