Frequently Asked Questions
1. Can polyurea be used to repair my leaky concrete pond?
Yes. Polyurea can be used to line and permanently seal concrete ponds. Lining your concrete with a rubber or pvc liner would leave unsightly folds and seams that catch fish waste and debris, creating maintenance headaches. Polyurea goes on with no seams, no folds and NO LEAKS!
2. Can it be sprayed directly onto the ground?
Technically yes, but the results would be inconsistent due to the soil type, moisture in the ground, and the high pressure of the spray application. We first line the excavation with a geotextile fabric. This gives us a smooth, consistent surface to apply the polyurea to. The result is a custom fit, seamless, leak-proof liner.
3. My rubber liner is leaking, can you repair it with polyurea?
Patching other liner materials with polyurea is not recommended due to cost and variable adhesion properties of the surface being repaired. There are patch kits available for rubber and pvc liners that work reasonably well. We can replace the existing lining with a sprayed-on polyurea membrane.
4. Is it safe for fish and plants?
Polyurea is safe for fish, plants, people and pets and is friendly to the environment. Containing no solvents and no VOC's (volatile organic compounds), polyurea consists of 100% solids. Your fish can be put into the pond the same day that it is sprayed!
5. Is it safe for children and pets?
Yes, polyurea is safe for kids and pets. It is even USDA approved for potable water and incidental food contact.
6. How long does it take to harden after spraying?
Polyurea is dry to the touch and can be walked on typically within 20 seconds of being applied. It remains flexible with an amazing 720% elongation and a tensile strength of 2500psi.
7. What about bottom drains?
Bottom drains and sidewall pipe penetrations are no problem with a polyurea liner. Bulkhead fittings, gaskets and caulk are not needed. We simply spray around the pipe with polyurea, making it an integral part of the liner with no chance for a leak.
8. How much does it cost?
Every job has its own specific characteristics and is priced individually. Generally speaking the cost is $10-12 per sq/ft of surface area to be sprayed, including materials and labor. Enter the dimensions of your pond on our 'Calculator' page and you will get a rough estimate. Please contact us for an estimate tailored to your specific job.
9. Can I do my own installation?
Polyurea can only be applied with the proper equipment by factory trained and certified applicators.
10. How thick is a polyurea liner?
One of the advantages of polyurea is that it can be sprayed to any thickness in a single application. We typically apply at approximately 80 mils thick, heavier under large boulders.
11. Will it crack if it gets too cold?
Polyurea has a service temperature range of -60 to 350 degrees Fahrenheit, it will not crack when properly applied. It can even be applied at sub-zero temperatures with no negative effects.
12. Can I place large boulders on my liner?
Yes, our Tuff Skins liner is extremely strong, puncture and abrasion resistant, and can stretch to over 7 times its length without tearing. Boulders weighing several tons can be placed directly on the liner.