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Old 06-01-2008, 09:07 AM
Acorn
 
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Inferior/ineffective polymeric sand?

Is anyone familiar with Pakmix Proline polymeric sand? I found it for $10 for a 50lb bag at Menards which I thought was really cheap compared to the Unilock's poly sand I've used once before.

Yesterday I applied this stuff and I was amazed at how easy it went into the joints and at how little dust there was left on the pavers compared to Unilock's. I was thrilled. I wet it down per instructions. but this morning it's not bonding up and it seems no different than regular sand in the joints. Even worse, ant hills are already popping up.

Unilock's poly sand dried like mortar the one time I used it. This stuff, after 24hours is not bonding at all. Does it need more time? Is it junk? Any help would be appreciated. Thanks.
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Old 06-01-2008, 09:51 AM
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The same thing happened to me. Its been a week and it hasnt even formed a crust.
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Old 06-01-2008, 02:00 PM
Acorn
 
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Ugh. Same brand? We'll see if anyone else has any input... thanks.
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Old 06-01-2008, 02:38 PM
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All I can tell you is you get what you pay for. You want professional paver products, you can't find them at the big box stores. Menards included. I've heard of a really large brand of sand selling a "polymeric" that did not perform any different than silica or torpedo sand. So I'm thinking you have junk sand. Your best bet may be to power wash it out and start again.

Check with your local paver suppliers to get your hands on real poly sand, and pay the extra $10 per bag.
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Old 06-01-2008, 02:55 PM
Acorn
 
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thanks Stone, I'm thinking it's junk too. I had a really bad experience with Unilock's sand. It was so dusty I never got it off my pavers and it formed a hazey look. I'm afraid to try it again.

I guess I'll power-wash it all out while I have my buddies pressure washer on hand.... argh!

EDIT - I'm really torn on washing it all out... what if I just put a sealer over it? Will the sealer hold down the sand?

Last edited by mklawz; 06-01-2008 at 03:35 PM..
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Old 06-01-2008, 07:36 PM
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If the joints aren't too big, that would work fine.
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Old 06-01-2008, 11:14 PM
Gold Oak Network Member
 
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unilock has a special sealant that also bonds regular sand ask your sales rep for it.
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Old 06-23-2011, 09:28 PM
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Just brought back 31/2 bags of "polymeric" sand from Menards. Useless, never hardened even after repeated watering.

Did a test with the moisened sand in cup over night, then put out in the sun to dry, Still never hardened. Glad I only used half a bag.

Burke
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Old 06-23-2011, 10:41 PM
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What was the brand?

I know Menards used to use a brand called Stone Mason for stuff like that, and it was a marginal product. I also know Quikcrete tried to make poly, and local contractors found the results to be dismal.
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Old 06-24-2011, 05:51 PM
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Ditto the Quikrete poly. Junk.

As for the sealer vs poly question, I think they both have their pros and cons. This past winter at the trade shows several of the sealer mfrs were really pushing the sealer option (Duh, they're sealer vendors...), But I think there is starting to be some movement back towards the sealers from the poly sand.
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Old 06-29-2011, 04:26 PM
Acorn
 
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Pros and cons of sealer.

We are having a similar problem. Two large patios of flagstone and a long pathway. The contractor used Envirobond Stone and it only hardened in some areas. The Envirobond people came and tested the product but the results were inconclusive. Contractor came back and dug out/vacuumed all the joints. They then mixed concrete and small lava rock and filled the joints. The rocks are travelling everywhere and it looks very messy. Forget walking barefoot on the patios. Contractor came back and we are now researching a sealer over top of everything. Any suggestions? What about the aggregate product they put on driveways...without the aggregate? Any help would be appreciated.
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Old 10-21-2011, 10:08 AM
jb.landplan
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Paving Expert

As a landscape architect working for the last almost 30 years in the Middle East, I've relied on A.J. McCormack & Son for paving advice. If you're not familiar with this father and son team (mostly son nowadays), please explore their extensive website. While they're located in the UK, their advice is wide-ranging and pertinent for all geographic locations. They may specify UK products (e.g., polymeric sand), but you can work around that for what is available locally ... Menards, Home Depot, Lowes, etc.

They keep up with new technical developments, have extensive experience and study the subject of paving as a science and art. Look, for example, at their wide range of photos of not only their work, but the work of others.

Pavingexpert - Jointing and Pointing for Stone Paving - Polymeric Jointing Mortars

Enjoy!
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Old 10-22-2011, 09:34 AM
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It is a good site, and they're good people there. I've been in touch with them for other links to other of my sites. But it's not relevant to this question.
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