Epoxy.com Mortar Systems can be used to make permanent repairs that no other kind of product can make. The purpose of this blog is to give you an overview of what you can use and how to use it.
- Product Selection – The following are a list of Epoxy.com Products that make excellent epoxy mortars All the products listed below are zero (0) VOC, so it meets even the strictest low VOC requirements, and meets Indoor Environmental Quality/Air Quality (LEED IEQ 4.2 Indoor Emitting Materials Credit). See the individual product component technical data sheets and MSDS for further information.
- 2:1 mix
- Product #10 Lo-Mod Epoxy Adhesive and Mortar Epoxy Binder .
- Product #10 Fast Curing Epoxy Version of Product #10 Lo-Mod Epoxy Adhesive and Mortar Binder.Product #10 Cold Temperature Curing Epoxy Version of Product #10 Lo-Mod Epoxy Adhesive and Mortar Binder.
- Product #12 Epoxy Primer Mortar, and Epoxy .
- Product #301 Injection Resin, low Modulus – also makes an excellent mortar.
- 4:1 mix
- Product # 24 Pigmented Epoxy Mortar.
- Product #24 Fast Pigmented Mortar sets about twice as fast as the normal cure.
- Product #24 Cold Pigmented Mortar allows installation to be done at low temperatures as low as35°F. to 40°F.
- Product #28 Epoxy Mortar – Honey Clear Epoxy.
- 2:1 mix
- INSTALLATION:
- First and foremost is good surface preparation. Good surface preparation is necessary for most if not all patches to have long term success: www.epoxy.com/surfaceprep.aspx.
- Prime the bottom of the whole with some of the neat mortar resin. Neat mortar resin is the liquid (A&B) mixed at the proper mix ratio and stirring in a way to insure a completely mixed product. This will typically take about 3 minutes.
- Mix some of the neat epoxy into the Epoxy.com Mortar Blend Aggregate #82 or other appropriate dry clean silica sand gradation.
- The amount of sand aggregate depends on the aggregate used.
- Typically, the Epoxy.com Product #82 Mortar aggregate can be added at a rate of 18 to 27 lbs. of #82 per 1.5 Qt of mixed resin (1Quart of A to ½ Quart of B).
- You will need to recalculate the sand above when using a different sized batch. This is doubly true if using one of or 4:1 mix ratio material.
- Shallow patches tend to be a smaller amount of sand filler.
- Deeper patches tend to be on the higher side.
- If you get a lot of resin to the surface your mix is too wet. If your mixture after it hardens is porous, or weak then you have added too much aggregate.
- For a better finish in very deep pours do it in 2 lifts.
- Fill all but the last ¼ inch plus or minus with your dryer mix. Allow to cure hard (typically overnight).Fill with a wetter mix on top of that after the first one has cured.
- To ensure proper adhesion between layers never wait more than 24 hours between layers.
- It is always better to have your patch slightly higher rather than to low. If you are slightly high you can grind the patch back to level. If to low you will need to fill again.
- For very shallow fills (1/32 or so) where the sand particles are to large you can use any of the following:
- Epoxy.com Product #71 – www.epoxy.com/71.aspx mixed with one the neat (mixed A and B only) mortars above
- Product #2005 Low Modulus Fast Setting Epoxy Gel.
- Product #2006 – Epoxy High-Mod Gel Adhesive and Bonding Resin
- Product #2704 Epoxy Gel Super-Fast Cure
As always, when in doubt contact me at Epoxy.com Technical Support with your questions.
norm@epoxy.com
1-352-533-2167
Posted by Norm Lambert 
Often inadequate design for expansion/contraction is the cause for parking garage structural cracking. Avoid weld injecting a crack if there are not enough expansion joints. Sometimes flexible overlays such as 
Epoxy.com News and Tips 