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WOC – MIP Award Winners

SYNLIME™ cement concentrates take home best of show at this years World of Concrete & Masonry trade show held in Las Vegas, NV.

SYNLIME™  cement modifiers replace 100% of the lime used in stucco, plaster, grout, mortar, and other cementitious materials.  Demanded by thousands in the block, brick and tile trades.

1 LB (1 bag) of SYNLIME™ admixture replaces 25 LBS of hydrated lime & produces significantly higher PSI levels. This revolutionary Lime-Free™ Technology is recognized as a GREEN Building Material and is biodegradable, non-caustic, non-corrosive, non-carcinogenic, and non-toxic. SYNLIME™ patented formulas contain no hydrated lime, no nitrates, no phosphates, no phenols, and no VOCs.

The SYNLIME™ Difference:

  • Superior Workability
  • Stronger PSI
  • Reduced Cost
  • Safe Certified
  • Green Product
  • 1:25 Compact Formula

Is there a safe alternative to lime in mortar?

Until recently, finding a safe alternative to replace lime in stucco, plaster, grout, and mortar was a difficult proposition.  Type S lime has been a long time staple for those requiring their mix to remain fluffy and sticky.  Afterall, workability is a must.  But finally, there’s a safe alternative that won’t burn skin, irritate eyes, or get you all choked up.

SYNLIME™, from Admix International, is a safe 100% complete lime replacement.  A comparison to Type S Lime reveals some amazing differences:

SYNLIME™ is specifically formulated to produce high plasticity and excellent water retention.  The end result is a more workable mix with higher PSI levels that is clean, safe, and worker friendly.  Its increased bonding strength to foam and wire is also superior to lime.   Is there a safe alternative to lime in mortar?  The answer is a resounding yes… SYNLIME™.

The Toxic Effects of Mason’s Lime

Cement Lime Burns

Lime on the jobsite is an extremely caustic material, and when wet, produces a pH of 12.  Wearing protective goggles, gloves, and clothing should be followed at all times.  Protecting bare skin & eyes from risk of splatter should be given top priority.  It’s always a good idea to have clean water on hand in case of accidental contact.  Skin can be neutralized with a very mild acid such as lemon juice or even vinegar. Repeatedly flushing the eyes with fresh water for several minutes is recommended.  Consulting with a medical professional is also advised.

The farmful effects of lime are far reaching and caution should be used under all circumstances.  Because lime is heavily used in the construction trades, it’s difficult to escape contact completely.  Those who risk exposure to lime include tradesmen in the following industries; masonry, stucco, tile, landscape, plaster, and plumbing, to name a few.  Because lime makes the mix more workable, fluffy, and sticky, it’s charactieristics are very desirable.


Some of the earliest known examples of lime use for building purposes are in early Egyptian buildings (primarily monuments). Some of these examples in the chambers of the pyramids, which date back to around 2000 B.C., are still hard and intact. Archaeological digs carried out on the island of Malta have shown that in places like Tarxien and Hagar, lime stucco was also used as a binder to hold stone together as well as for decoration at sites dating back as far as 3000-2500 B.C.

Ancient Chinese used slaked lime in the construction of The Great Wall of China and in other structures built throughout China during the Ming dynasty.

Lime Substitute for Mortar Mix

We build a lot of block fences and walls around our area and therefore mix a lot of mortar. Me and many of my workers were tired of mixing batches of mortar using lime and getting that itching irritating feeling on our skin. We decided to try one of the lime substitutes and after some looking around we settled on SynLime, mainly because it was easy, it only weighs one pound. Also, for us it’s a local company so if we had any problems we knew where to go. When we mixed up our batch of mortar we poured the pack of SynLime in instead of lime. I’ll tell you, its nice pouring a one pound pack in the mixer rather than hoisting a 50 pound bag. We were surprised how easy it mixed and how well it spread. It was great to work with. The package says it has a stronger PSI than lime. We will see…so far so good.  I’m happy to report no more itching, scratching, or lime burns.

James T.

Stucco Contractors Now Have a New Option

Stucco Contractors Now Have a New Option
by Drew Fuller – Stucco Industry News
December 30, 2010

Countless videos (like those posted here) and a multitude of “How-To” articles have been written over the years explaining the proper methods for applying stucco.  But what we in the stucco business really want to know is how to make our mix more workable and reduce cracking in the finished product.  Lime is a key ingredient in most stucco and mortar products that make the mix more workable.  Workability, after all, is what we’re all after.  If our mix isn’t fluffy, sticky, and workable… it’s useless.  Until recently, lime has been the only option available to keep workers happy and the mix workable.  But the side effects of lime are well documented – skin burns, eye irritation, respiratory problems, etc.  And prolonged exposure to lime can result in chronic health issues.  Add to this lime’s PSI issues related to cracking and efflorescence, and you start to get the big picture.  So why hasn’t someone developed a lime replacement?  You’ll be happy to know they have.

The engineers at Admix International have produced a patented dry admixture that completely replaces lime in stucco, plaster, grout, mortar, pavers, block, and other cement related products.  It’s called SynLime™.  1 pound of SynLime™ replaces 25 pounds of hydrated lime and completely removes the need for fly ash, clay, and other lime additives.  The end result is a more workable mix with higher PSI levels that is clean, safe, and worker friendly.  And its increased bonding strength to foam and wire is remarkable.  I recently mixed my first batch of stucco using SynLime™ and the results were everything they claimed; a more workable mix that doesn’t crack… and the board life was longer than expected.  The fact that their formula is non-toxic made working with it reassuring.

I decided to do a little homework on the company and found that Admix International, LLC has been around for several years. 35,000 bags of their flagship product “SynLime™” was recently sold in an Arizona Home Depot 9 store test market with excellent results.  Their Lime-Free™ Technology has also been used in Durawall stucco products over a period of years and has been applied to more than 40,000 homes in Arizona and Nevada by major industry contractors.  I also learned that SynLime’s™ patented properties can now be used in bagged and pre-mix manufacturing to completely replace lime and other harmful additives in cement products.  Calling their corporate offices, I discovered that licensing agreements are also an option for manufacture’s desiring to use SynLime™ in their Mega-Mix or bagging operations.  SynLime™ can be purchased directly from the manufacturer at www.synlime.com or from one of the many distributors listed on their website. With so much going for it, I’ll be keeping an eye on SynLime™ to make a significant impact in the construction market in 2011.