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Ships within 48 hours · Estimated delivery Aug 19 - Aug 24
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Description
Coprox Waterproof Crack Filler (Prices from)Suitable for Brick, Mortar, Screed, Concrete and Plaster Interior & Exterior Excellent Strength & Adhesion Coprox Waterproof Crack Filler is suitable for interior and exterior applications. It mixes easily with water, has excellent strength and adhesion and can be applied in layers of up to 6 mm. It is easily sanded to a smooth finish and does not crumble or crack when drilled. INSTRUCTIONS Suitable Surfaces Mortar, screed, concrete and plaster.
- Suitable for Brick, Mortar, Screed, Concrete and Plaster
- Interior & Exterior
- Excellent Strength & Adhesion
Coprox Waterproof Crack Filler is suitable for interior and exterior applications. It mixes easily with water, has excellent strength and adhesion and can be applied in layers of up to 6 mm. It is easily sanded to a smooth finish and does not crumble or crack when drilled.
- Mortar, screed, concrete and plaster.
- Cement and clay bricks.
Other surfaces should first be tested for suitability.
Mixing
Sprinkle 5 kg Coprox Waterproof Crack Filler slowly into 1,75 litres of clean water stirring constantly until a smooth paste-like consistency is achieved. Use within 30 minutes.
Filling Cracks
- Wet cracks, holes and indentations with clean water.
- Fill the cracks, holes and indentations using a scraper or putty knife.
- Apply to a depth not exceeding 6 mm. For deeper cracks, holes or indentations, apply in 6 mm layers after each layer has been allowed to dry.
- Even out the crack filler level with the surrounding surface.
- Allow to dry for at least 4 hours (drying times may be longer in cold or wet weather) before sanding, drilling or painting. Apply a universal undercoat before over painting.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Better than most.
Size: (Pack of 1)
Looks good, perfect fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
★★★★★ 5
Great Filter
Size: (Pack of 1)
This fits fine. Just wish it was a little easier to change.
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Reviewed in the United States on April 26, 2026
★★★★★ 5
More power, slightly lower (8%) MPG.
Size: (Pack of 1)
Installed on a 2.0 liter Subaru Impreza.
I drive up/down the I5 in california 3-4 times a year. For those that don't know there is about a 200 mile flat stretch where everyone runs at 75-85mph.
With various filters (FRAM, BOSCH, Subaru OEM), I would consistently get 29.8 mpg. Once I installed the K&N, I could feel the car pulling with a bit more power, but I noticed that I was getting about 27.5 mpg.
Totally worth it as the impreza is a little under powered and I don't drive many miles (6k/year) but if you are putting a lot of miles on your car, you may want to have more mpg.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
fits my 2013 chevy suburban 5.3 and appears to be high quality
Size: (Pack of 1)
fits my 2013 suburban perfectly. looks to be a well constructed unit.
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Reviewed in the United States on March 29, 2026
★★★★★ 5
Very good quality comparable to OEM at a much more reasonable price point.
Size: (Pack of 1)
Last December we bought our first new car in 21 years and the first thing I did is stock up on cabin and engine air filters. I've got nothing against dealership OEM parts and pieces but what I do have an issue with is the prices. Luckily, we all have a bit of control over access to OEM quality parts and pieces at significantly more reasonable prices via Amazon. This filter and it's matching cabin filter are excellent in value and take less than 5 minutes to replace. Compare that to paying the hourly rate at your dealer plus the dealership retail price and you'll do what I did and stock up on these two filters. Definitely recommended.
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Reviewed in the United States on September 25, 2025
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