Can you walk on it ? I need something to skim-patch a few low spots where water lays on a waterproofed stairway. Plan 2-part decking top-coat . Thx!

Yes. Since it's flexible and still strong when dry, I used it to cover up cracks after our patio and pool deck settled. Then painted over when it was dry. It dries in what ever shape you apply it, so make sure it's smooth or however you want it because it will stay that way.

Sorry it took me so long to answer. White or just slightly off-white. Looks like regular white patch. It is a little harder to work with than regular patch, however the finish is very nice looking. Better than regular. After my experience using and finish this summer I will not go back to plain filler/patch material.

Can I use this product to air seal at the rim joist in the basement? Normally people would recommend using Great stuff spray foam.

NO...THIS IS MORE A PATCH MATERIAL...

Can I use on a stucco wall to it make it a smooth finish instead of bumpy so I can apply wallpaper. It was an exterior wall that is now an inside wall

Google says you can use this flexible patch on stucco. DAP also makes a product designed for stucco.

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Dap 12278 Elastomeric Patch and Caulking Compound, 1-Quart T

Dap 12278 Elastomeric Patch and Caulking Compound, 1-Quart T

Product ID: 315312258

Details

Brand
DAP
Colour
White
Full cure time
24 Hours
Item weight
3.07 Pounds
Liquid volume
1 Quarts

💧Waterproof seal

🕒30 min initial harden

🧱Flexible on masonry & drywall

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$U7103

Duties & taxes included

In stock

Sold byAmazon UruguayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Patch it once, flex forever — the pro’s secret weapon!

FAST INITIAL SET - Ready to work on in just 30 minutes
SUPERIOR PAINTABILITY - No flash paint, seamless finish every time
VERSATILE SURFACE USE - Perfect for masonry, brick, plaster, drywall & wood
PERMANENTLY FLEXIBLE FILL - Eliminates cracks with lasting elasticity
WATERPROOF WEATHERPROOF - Reliable for both interior and exterior projects

DAP 12278 Elastomeric Patch is a high-performance, acrylic-based spackling compound designed for smooth, flexible, and waterproof repairs on multiple surfaces. It cures fully in 24 hours with an initial hardening in 30 minutes, providing a paint-ready, crack-resistant finish ideal for both indoor and outdoor use.

Specifications

ASIN	B0006MXS24
Brand Name	DAP
Color	White
Customer Reviews	4.5 4.5 out of 5 stars (1,202)
Full Cure Time	24 Hours
Global Trade Identification Number	00070798122789
Included Components	Unit^Instruction Guide
Initial Hardening Time	30 Minutes
Item Form	Strip
Item Type Name	Raw building material
Item Weight	3.07 Pounds
Liquid Volume	1 Quarts
Manufacturer	DAP
Material Type	Acrylic
Maximum Gap Fill	0.25 Inches
Model	7079812278
Number of Items	1
Part Number	7079812278
Surface Recommendation	Wood
Temperature Range	40 to 100 Degrees Fahrenheit
UPC	070798122789
Unit Count	32 Ounce
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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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

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The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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