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1 Qt. Siliconizer White Elastomeric Crack Filler Smooth Knife Grade for Permanent Water Resistant Adhesion

  • A flexible mastic that will adhere to any surface and fill cracks
  • Permanent water resistant adhesion, stops leaks & seals cracks.
  • For: concrete, metal, wood, asphalt, polyurethane
  • See More Details

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Product Overview

Siliconizer Crack Filler Is a 100% elastomeric, styrene/acrylic, silicone modified white mastic for interior and exterior use. Will permanently seal leaks and bridge cracks on smooth surfaces. A flexible mastic that will adhere to any surface and fill cracks of any size. Will not crack, peel or crumble even after exposure to severe weather conditions.
  • Seals cracks and leaks
  • Spatula or knife grade
  • For use with or without reinforcing fabric fiberglass
  • UV and mildew resistant
  • Can be painted
  • Smooth finish
  • Coverage: 1 Gal. covers 994 sq. ft. at 1 mils 1 Gal. cover 50 sq. ft. (4.7 m) at 30 thick mils
  • Drying time: 12-15 minutes to touch, 2-4 hours to recoat (79˚F (26˚C) and 85% RH)
  • To seal cracks and leaks
  • 100% elastomeric
  • California residents

Info & Guides

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Specifications

Dimensions

Container Size
1 Quart
Product Depth (in.)
5
Product Height (in.)
5
Product Size (oz.)
32
Product Width (in.)
7

Details

Application Method
Brush On,Trowel
Coating Base
Acrylic
Cold Applied
Non Cold Applied
Color Family
White
Color/Finish
White
Features
Water Resistant,Waterproof
Returnable
90-Day
Roof Repair Type
Acrylic
Roofing Product Type
Roofing Repair

Warranty / Certifications

Manufacturer Warranty
Satisfaction Guarantee

Questions & Answers

14Questions20Answers

Us this product paintable

Asked by Vop January 23, 2021
2
Answers

Yes you can paint over within 30 minutes

Does this dry hard or more like a rubber? I was thinking about using this on my deck where some o...

Asked by CT September 30, 2020
2
Answers

Hi CT, the Lanco Crack Filler is 100% elastomeric styrene acrylic, silicone-modified mastic, white and smooth for knife application. It is perfectly designed to seal any leak and bridge any crack on smooth surfaces. The Lanco Siliconizer Crack Filler is flexible mastic that will adhere to any surface and fill cracks of any size. Will never crack, peel or crumble, even after an extreme exposure to severe weather conditions.

good to use on long cracks on cedar wood ciding?

Asked by dorko September 4, 2020
2
Answers

Probably would be good but ask your Home Depot specialist or Carl’s manufacture God blessHave a great evening

Can this be used to repair holes and cracks on the inside of galvanized gutters?

Asked by wj August 31, 2020
2
Answers

Yes I think it might work for that. Cleaning before applying according to manufacturers instructions would be necessary.

can you use this for shower tile?

Asked by Nikary August 22, 2020
1
Answer

Hello Nikary, yes you can use the Siliconizer Crack Filler for shower tiles. The Siliconizer Crack Filler is a 100% elastomeric styrene acrylic, silicone-modified mastic for knife application. Although, if your project is to waterproof underneath your bathroom tiles, then the right product for this application is the Aqua-Proof Primer. It can be used as a secondary protection under tiles in wet areas such as bathrooms, food processing areas, balconies and similar situations.

Will this work to seal small cracks in a fiberglass or plastic water fountain?

Asked by Dr June 23, 2020
2
Answers

According to the package it is made for concrete, metal, wood, asphalt, and polyurethane. Videos show it being used on sheet rock. I would contact the manufacturer or a good handyman to ask how similar the properties are of fiberglass/plastic vs polyurethane. Or ask Google. The description on HomeDepot.com does say "A flexible mastic that will adhere to any surface and fill cracks of any size."

Can you use this to repair small hairline or just slightly bigger than hairline cracks in basemen...

Asked by Shannon August 7, 2019
2
Answers

Yes you can but the area needs to be clean of lose debris.

i need to seal off a concrete hole ander the shauer tub left by the plunber after replacing the tub.

Asked by silvano July 27, 2019
2
Answers

Hi, thanks for use Lanco. I will need more information but, if you are saying to seal the joint between the tub and the floor, yes this product or Lanco Silicon Seal caulk will do a great job. If is a hole in the concrete, it is better to use a polyurethane foam or cement based material to fill the hole.

Can i use a leveling repair concrete on top of it, my roof have many cracks and i want to use this.

Asked by Jhonny March 29, 2019
2
Answers

Of course you can use this product

Can this be sanded?

Asked by Biggie February 19, 2019
3
Answers

I didn't buy this product but I see in the picture right on the front label it does say SANDABLE.

1 Qt. Siliconizer White Elastomeric Crack Filler Smooth Knife Grade for Permanent Water Resistant Adhesion - page 2

Customer Reviews

  • 4.7
    out of 53 reviews
  • 93% recommend this product
Filter by:
Showing 1-10 of 53 reviews
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Great product can be used on concrete all purposes especially for weather sealing I use it all th...
Great product can be used on concrete all purposes especially for weather sealing I use it all the time...
by Tony
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
1 person found this helpful
Excellent product. It sealed the roof perfectly....
Excellent product. It sealed the roof perfectly.
by HomeDepotCustomer
Easy to use. Works great!!
Easy to use. Works great!!
by Tammy
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
by Flash
Works great highly recommend...
Works great highly recommend
by HomeDepotCustomer
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Patched a crack in a hard place to get to in a transition area it was easy to work into the joint...
Patched a crack in a hard place to get to in a transition area it was easy to work into the joint with a putty knife
by Poppop
Showing 1-10 of 53 reviews