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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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Description
Coprox Waterproof Cement Additive (Prices from)Prevents Rising, Falling & Penetrating Damp Additive to Mortar, Screed, Unreinforced Concrete and Plaster Remedy for Leaks Coprox Waterproof Cement Additive is an excellent primary waterproofing when mixed with mortar, screed, unreinforced concrete or plaster. It is an essential ingredient in the construction of structural, retaining and boundary walls, floors, showers, basements, wine cellars, underground parking, ponds, swimming pools, reservoirs
- Prevents Rising, Falling & Penetrating Damp
- Additive to Mortar, Screed, Unreinforced Concrete and Plaster
- Remedy for Leaks
Coprox Waterproof Cement Additive is an excellent primary waterproofing when mixed with mortar, screed, unreinforced concrete or plaster.
It is an essential ingredient in the construction of structural, retaining and boundary walls, floors, showers, basements, wine cellars, underground parking, ponds, swimming pools, reservoirs and water features for the prevention of rising, falling and penetrating damp.
Coprox Waterproof Cement Additive is also an excellent remedy for the plugging of leaks.
Primary Waterproofing
- Add 2,5 kg Coprox Waterproof Cement Additive to every 50 kg of cement used in any mortar, screed, concrete or plaster mix.
- Ensure recognized building mix ratios are adhered to.
- Mix dry ingredients thoroughly.
- Add required quantity of water to the dry mixture using recognized building mix standards.
- Mix wet ingredients thoroughly before use.
Plugging Leaks
- Dovetail the leaking spot with a chisel to a depth of about 50 mm and clean thoroughly.
- Mix one part Coprox Waterproof Cement Additive with two parts of clean fine plaster or silica sand by volume, e.g. 1 cup Coprox Waterproof Cement Additive to 2 cups sand. Add a little water and mix until a putty like consistency is achieved.
- Wear protective gloves and knead well for about half-a-minute.
- Relieve the main water flow by inserting a piece of hose into the dovetailed cavity.
- Pack the plugging mixture firmly around the hose to keep it in place.
- Level the plugging mixture with the surrounding surface.
- Allow to dry for approximately 1 hour.
- Mix a fresh quantity of plugging mixture.
- Have a dowel stick approximately the same diameter as the hose ready for use.
- Carefully remove the hose using a twisting motion.
- Force the plugging mixture into the hole and apply pressure with the dowel stick for about 1 – 2 minutes.
- Remove the dowel stick.
- Fill the remaining void with the plugging mixture.
- Allow to dry for approximately 2 hours.
- Apply two coats of Coprox Masonry Waterproofing.
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
4.7 ★★★★★
Based on 2025 reviews
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Product Reviews
★★★★★ 5
Squeaks and glows
Style: Recharges, Size: Medium
Squeaks. Glows, and labs love them.
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Reviewed in the United States on January 19, 2026
★★★★★ 3
good but no glow
Style: Recharges, Size: Medium
good ball but as others say, the glow in the dark really isn't there.
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Reviewed in the United States on May 14, 2026
★★★★★ 5
Good grip glow ball
Style: Recharges, Size: Medium
Love this glow in the dark Chuck IT. Get a black light flashlight to charge the neon instantly. Good texture gives the dog better grip than the smooth all white glow in the dark chuck it balls.
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Reviewed in the United States on January 9, 2026
★★★★★ 5
Our German Sheppard loves these
Size: Medium
These cost a bit more than tennis balls, but they are so much nicer and longer lasting. For starters, they stay cleaner than tennis balls because they’re smooth rubber. Dirt won’t build up on them and if anything does stick, like grass or soil, it falls off once the dog slobber dries. They’re also thick, so they don’t fall apart or blow out like a normal tennis ball does in our dog’s jaws after 30 seconds. Our GS chomps on these like crazy and the only damage they’ve suffered is a crack that developed from the edge of the hole, but the crack is growing very slowly and none of these balls have totally failed yet. The balls do whistle when thrown ant high speed and that may help a dog track and locate it, but I’m not sure. Our neighbors hear the whistling too so it’s far from silent. Lastly the orange ball is easy to locate out in our yard, but the dark blue practically disappears.
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Reviewed in the United States on April 6, 2025
★★★★★ 5
Great for smaller dogs
Size: Small
These two balls are perfect for the smaller mouthed dog that loves to play fetch.
These balls are not only super durable (lots of teeth biting), but float in the baby pool we use for our miniature dachshunds.
The value here is much better than you’d find anywhere else. The noise, if bitten hard enough, was “low” at best. Easy to spot/find if overthrown. Will definitely buy again once these are in bad repair; so far, so good-love these for my fur babies!
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Reviewed in the United States on October 8, 2024