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had a significant leak in an old concrete tank and after a few days i got it plugged up without draining the tank the secret is use little and often and even allow a slurry to drip / run down into the leak. Has held firm for almost a year now. very impressed as i had my doubts at first.
Verified purchase: Yes | Condition: New
I had a wall length crack in 4500litre concrete tank which was repaired with crystals by a company about ten years ago but leaked after a few days. This might be second application which seals tank. I had to empty tank and applied inside and out then cured empty for 48 hours. It is sealing after seven days but will know when filled to top if it cracks and repairs.
Verified purchase: Yes | Condition: New
One of the better repair products. Application take a little care particularly when the crack in the tank wall is weaning. Unlike most other products Crystalflix does not plug the it penetrates the crack and protects the steel reinforcement. Hence reducing corrosion of the steel reinforcement.
Verified purchase: Yes | Condition: New
Has fixed my stock trough very well. It had a hairline crack from top to base, now no leak whatsoever. Very easy to mix & apply with a brush.
Verified purchase: Yes | Condition: New
Great product. Easy to use and has stopped fast leaks that nothing else would seal.
Verified purchase: Yes | Condition: New
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