Crommelin pond sealer taking long time to cure

[suley001]

hi guys I sealed my pond with crommelin pond sealer and a couple days later a part of it got a little wet I dried it up and left it for 7 days to cure when I first painted it but the part that get wet still hasn't cured will I need to coat this again or just wait longer for it to cure? thanks in advance for any help yous can give me 

[MitchellMc]

@THowell,

I have had a chat with Crommelin Technical Assistance and the only time they've ever heard of the sealer not curing is if it has come in contact with water before it dried. This could be water touching it after it's been applied or water in the substrate that was coated. 

Was the ornament in water before you applied the sealant? If so, did you let it dry fully for several days before applying the sealer? 

If water has contaminated the coating, then it's recommended that you remove the un-cured coating and apply a new one.

Please let me know if you have any questions.

Mitchell

[THowell]

The ornament was never put in water before applying and I followed the directions on the container correctly.

I even waited two weeks after the last coat was applied to put it in water.

Think ill sand off the sealant and try a different product.

[MitchellMc]

If no water was involved @THowell, then something strange has occurred. I'll be more than happy to facilitate a return on the product for you. 

Please see one of our helpful team members at your local store's Returns Desk. Let them know that you've spoken to a team member who contacted Crommelin's technical assistance, and you need to return the product as it hasn't met expectations. Let me know if you have any issues returning the product, and I'll make contact with the store for you.

I apologise for the inconvenience.

Mitchell

[davidg2]

I have had the same problem, but also used two coats of the Crommelin

 

damp stop on the concrete prior as instructed and allowed 7 days to cure before putting on the pond sealer. When the damp seal had cured, there was some strange yellow discolouration along some areas along edges, which are now the same areas where the pond sealer has bubbled after some light rain about 4 days into the cure. (The remainder of the coat has survived the rain well and I have sponged off all the standing water.) Will this eventually dry and seal or do I need to remove and repaint these areas? Why didn’t the damp stop work?

[MitchellMc]

Welcome to the Bunnings Workshop community, @davidg2. It's fantastic to have you join us, and many thanks for your question about sealing a pond.

Were any products applied to the pond before adding the Dampstop? If there was a previous coating, the yellowing might have indicated a compatibility issue. Also, Pondsealer must not be applied when temperatures are outside 10 - 30 degrees Celsius. I would suspect that nighttime temperatures in many locations would be dipping below 10 degrees Celsius.

The bubbling indicates a moisture issue. So, the amount of rain you received might have been the problem. At this stage, it is just a waiting game, and I'd recommend you shield the area to prevent any more rain from contacting the product. Given the various issues that could have caused this, I'd recommend you discuss your application process and issue with the Crommelins technical team on Ph: 1800 655 711.

Please let me know if you have any questions.

Mitchell
 

[davidg2]

Many thanks Mitchell. Thanks for the advice. The Crommeliin damp stop was applied to new concrete so the only thing I can think of is the porous sandstone abutting the concrete. A little concerned now about the lower night temperatures during curing, but I guess it will be a waiting game as you suggested for it to fully cure. Just one final question, when will I know it is fully cured if I can’t count on it being 7 days?

[MitchellMc]

The surface not being tacky is a good sign of a successful curing @davidg2. I'd then wait a few more days after that.

Mitchell