I'm thinking I saw the Techniseal name on a Unilock bag of poly sand. That doesn't mean they can't change the formula for the bags of sand with the Unilock emblems on them - that kind of thing happens all the time.
We installed a flagstone patio this past fall and used Techniseals
HP poly sand and it has the problem of not completely harding. I also noticed some washout. I figured it didn't totally hardin because some of the joints are wider than an inch. I guess I should call techniseal to see whats up.
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Keith Neustaedter
St.louis Ponds and Waterfalls
"We bring life to your backyard"
Yea, you're right, I suppose Techniseal could've come up with a slightly different blend to sell to Unilock - I still maintain that its an inferior blend than their original product though.
And Keith N, you should contact Techniseal and see if they can send a rep out to look at your job, you never know, maybe they'll credit you some product or do a repair. I know Alliance DP just came out with a product for flagstone good for joints up to 4 inches - called Gator Dust or something and comes in gray and brown.
Can Limestone sand be used in lieu of polymeric sand?
I have read about polymeric sand and sand sreenings for use as fill between paver bricks. Can Limestone sand be used? My application is to replace sand screening in a patio that has bricks of varying shapes with gaps ranging from 1/4" - 1/2". Thank you.
Tom[at]Build-Equity[dotcom]
Last edited by Stonehenge : 07-06-2009 at 10:49 PM.
personally we almost never use poly sand unless it is around a pool. WE also never use mortar sand either as you all know how much fun that stuff is to us. We use a bagged jointing sand, really fine stuff, always dry and goes straight into the cracks. Weeds do not grow in it, never had a problem with it washing out, even with the heaviest of rains, and it is only about $8 a bag.
We don't really use polymeric sand to joint block paving in the U.K. Do you have to use a compactor plate over it once its brushed in as you with kiln dried sand? Does it keep all weeds out?
Also if the pavers settle alittle over time, does the poly sand 'move' with the pavers or stand proud slightly?
We use it on flagstone patios but it always seems to dis-colour.. is all poly sand porous? Perhaps your products are superior!
We always use techo-bloc with pavers and gator dust with flagstone. If you blow off gently but well, works like a charm. I'm surprised to hear how disgruntled everyone is. Never have had a haze either.
ive only used techni-seal poly sand, and it seems to be a simple foolproof application.....followed the instructions and have no hazing anywhere on my pavers..........and set up rock hard within a few hours
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Matt Thompson
Thompson's Landscaping
Henderson, NC
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