Polymeric sand substitute?


  #1  
Old 09-30-21, 07:04 AM
B
Member
Thread Starter
Join Date: Oct 2001
Location: USA
Posts: 980
Received 9 Upvotes on 9 Posts
Polymeric sand substitute?

Background: I have a large paver patio that is about 18 years old. A few areas have settled a bit and I'm in the process of removing and resetting pavers in those areas. I'm going to be cleaning out all existing joints using a water hose on sharp stream. A couple test areas shows this working reasonably well, down about an inch or more. These are pretty narrow joints, 1/16" to 1/8" in most areas. 2-1/4" thick Borgert pavers.

The question: The polymeric sand (Techniseal EZ Sand from HD) is getting really expensive, probably well over $100 even with the narrow joints. I'm wondering if it would work sweeping in a 4:1 sand/portland mix, and then watering it in like a polymeric sand. Sand is under $3 a bag (50#) and I would need 4 to 5. Portland is $14 a bag (96#) and I would need just one. Assuming the sand is fine enough to sweep in (haven't tried that yet), any ideas if this would work? Any "gotcha's" you can think of?

Edit: I can't find any MSDS sheets that would suggest what's in EZ Sand. But as hard as it is after curing, I suspect is has to have some portland in it. The instructions also talk about curing times
 
  #2  
Old 09-30-21, 08:42 AM
P
Group Moderator
Join Date: Mar 2003
Location: NC, USA
Posts: 27,789
Received 2,186 Upvotes on 1,956 Posts
Buy the polymeric or use standard sand. Considering the cost of paver patio a hundred bucks in minimal. It's like complaining about the cost of light bulbs when you live in a million dollar house.

Do not use cement & sand (almost mortar) as it is very brittle and will soon crack. Polymeric is sand with a latex binder so it remains flexible to accommodate the slight movement between the paver blocks.
 
  #3  
Old 09-30-21, 02:55 PM
Marq1's Avatar
Member
Join Date: Sep 2016
Location: USA MI
Posts: 9,745
Received 1,210 Upvotes on 1,098 Posts
Anything other than polymeric sand will simply blow away with time and be a continuous mess.
 
  #4  
Old 09-30-21, 03:58 PM
C
Member
Join Date: Mar 2007
Posts: 2,505
Received 351 Upvotes on 294 Posts
About 10 year ago I built a flagstone patio. I used broomed in sand for the joints. Within a couple of years I was fighting washout, weeds and anthills. Two years ago I redid the joints with polymeric sand. A bit pricey but it solved my problems.
Some polymeric sand has a Portland component but the key is the polymer. You can find lots of MSDS sheets on line and the polymer mix is usually listed as proprietary.
 
  #5  
Old 10-01-21, 02:55 AM
B
Member
Thread Starter
Join Date: Oct 2001
Location: USA
Posts: 980
Received 9 Upvotes on 9 Posts
OK, you talked me down, polymeric it is! When I originally did this patio area, I just used plain sand in the joints. It lasted about 10 - 12 years before I had to start dealing with plant growth, probably because of the very thin joints, so not too bad. But at 72 years old, I don't want any more extra maintenance than I have to. Thanks for the input!
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description: