Will this work under the tracts of a steel shed placed on cement to keep water out?

Yes it will work. Place caulking between metal and cement ,then seal along the edge on the outside of metal strip. Very little shrinkage even after it drys.

Can I use it for expansion joints on the exterior concrete block walls?

Probably not. It is flexible but I don't think it will Last very long.

Does this clear dry more of the "milky/opaque" clear, vs the crystal clear/transparent?

it dries clear cant hardly tell its on there but takes awhile to dry clear<

DAP18304 12 Pack 10.1-Ounce Dynaflex 920 Window door & Sliding Sealant, Clear

Product ID: 557792679

Details

Brand
DAP
Item weight
0.83 Pounds
Liquid volume
10.1 Fluid
Item form
Liquid
Surface recommendation
Window

🎨Sandable & paintable

💪Professional results

🔧Repairs holes & cracks

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21531 som

Duties & taxes included

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Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
DAP
Item weight
0.83 Pounds
Liquid volume
10.1 Fluid

Description

🔨 Seal the Deal with Dynaflex!

VERSATILE USE - Perfect for both indoor and outdoor projects.
ERGONOMIC DESIGN - Includes a 3.5" ergonomic plastic putty knife for easy handling.
DURABLE RELIABLE - Won't shrink or crack, ensuring long-lasting results.
NO FUSS APPLICATION - No priming required—just apply and go!
SEAL WITH CONFIDENCE - Repair holes and cracks up to 3 inches in diameter effortlessly.

The Dap 18304 Dynaflex 230 Premium Sealant is a versatile solution for repairing holes and cracks up to 3 inches in diameter. This 12-pack of 10.1-ounce sealant is sandable, paintable, and requires no priming, making it ideal for both indoor and outdoor use. With a durable formula that won't shrink or crack, it delivers professional results every time. Plus, it comes with an ergonomic putty knife for easy application.

Specifications

Product Dimensions	4.9 x 4.9 x 28.91 cm; 376.48 g
Item Weight	0.83 Pounds
Number of pieces	1
Batteries required	No

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