can one put a second cost on first in the crack?

Not sure what you're asking. Applying a second coat to a crack in the stuff that's already there? If that is the question, you can, but it won't last. If you're in a rental it beats waiting for the landlord to act. If it's your property, best to do it right instead.

Is this a good option to seal small outside cracks around some windows? and then ok to mortar over this? please advise...thanks!

I have had good results using this product to seal cracks in concrete walkway & driveway but never around windows nor have I tried to mortar over it.

Does this have any benefits over real morter to fill cracks or its just easier to use?

Can be used to fill small cracks only.

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Latex Concrete Sealant,Gray, 10.1OZ

Product ID: 328251470

Details

Brand
DAP
Item dimensions L x W x H
5.1 x 5.1 x
Item weight
10.1 Ounces
Material
HAWA
Style
Tube

💧100% waterproof seal

🛡️weather-resistant durability

🇺🇸Made in USA quality

₨506

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Description

💪 Seal smart, last long — concrete care that means business!

EFFORTLESS FINISH - Paintable and easy to clean up with water, making your project seamless.
FLEXIBLE STRONG - Silicone-enhanced formula ensures superior adhesion and crack resistance.
ECO CONSCIOUS CHOICE - VOC compliant and low odor for safer, cleaner use in any environment.
SEAL WITH CONFIDENCE - Creates a fully waterproof, weatherproof barrier that stands up to the elements.
VERSATILE APPLICATION - Perfect for both interior and exterior concrete, mortar, and masonry repairs.

DAP Latex Concrete Sealant is a durable, waterproof, and weather-resistant sealant designed for repairing cracks and holes in concrete, mortar, and masonry. Enhanced with silicone for flexibility and adhesion, it is paintable, low odor, VOC compliant, and suitable for both indoor and outdoor use. Proudly made in the USA, it offers a reliable, easy-to-apply solution for lasting concrete protection.

Specifications

ASIN	B000H5S09G
Best Sellers Rank	#50,749 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #129 in Silicone Sealers
Brand Name	DAP
Color	Gray
Compatible Material	Concrete
Customer Reviews	4.7 4.7 out of 5 stars (3)
Global Trade Identification Number	00070798180215
Included Components	1 Tube
Item Dimensions	5.1 x 5.1 x 28.6 centimeters
Item Form	Paste
Item Type Name	concrete sealant
Item Weight	10.1 Ounces
Manufacturer	Dap
Material Type	HAWA
Model	7079818096
Number of Items	1
Number of Packs	1
Part Number	7079818096
Style Name	Tube
Surface Recommendation	Exterior/Interior
UPC	070798180215
Unit Count	1 Count
Water Resistance Level	Waterproof

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₨506

Duties & taxes included

In stock

Sold byAmazon SeychellesDelivered 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 Seychelles.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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