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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Dap 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

€ 41.39

Duties & taxes included

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Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Seal smart, live worry-free — protect your concrete like a pro!

EFFORTLESS FINISH - Paintable, easy to apply, and cleans up with just water—no mess, no stress.
SEAL WITH CONFIDENCE - Creates a fully waterproof, weatherproof barrier that stands up to the elements.
ECO CONSCIOUS FORMULA - VOC compliant and low odor for safer, cleaner use in any environment.
VERSATILE APPLICATION - Perfect for both interior and exterior concrete, mortar, and masonry repairs.
SILICONE ENHANCED FLEXIBILITY - Advanced silicone additives ensure superior adhesion and crack resistance.

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 improved adhesion and flexibility, it forms a paintable, gas and oil resistant seal suitable for both indoor and outdoor use. Made in the USA, this low-odor, VOC-compliant formula offers professional-grade performance with easy water cleanup.

Specifications

ASIN	B000H5S09G
Best Sellers Rank	#81,893 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #176 in Silicone Sealers
Brand	DAP
Brand Name	DAP
Color	Gray
Compatible Material	Concrete
Customer Reviews	4.7 out of 5 stars 3 Reviews
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
Item dimensions L x W x H	5.1 x 5.1 x 28.6 centimeters
Item weight	10.1 Ounces
Manufacturer	Dap
Material	HAWA
Material Type	HAWA
Model	7079818096
Number of Items	1
Part Number	7079818096
Style	Tube
Style Name	Tube
Surface Recommendation	Exterior/Interior
UPC	070798180215
Unit Count	1 Count
Water Resistance Level	Waterproof
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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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€ 41.39

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered 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 Slovakia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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