Tips for 4195 Direct to Concrete Penetrative Primer-Sealer

4195 and Roll On Rock System 2

Concrete Profile
We do not recommend aggressive concrete preparation with this product. If you will be shotblasting then a primer like our 4100 or fast drying 5205 Hybrid is recommended. This is because the 4195 wicks into the concrete and if you open the concrete up there may be some suck out which will leave areas that did not hold much chip. All that is needed is a clean porous concrete surface. Do not acid etch period. Do not grind or shotblast unless there is an existing sealer or bond breaker present.

Open Time
You can add up to 1 cup of solvent to each one gallon kit. This will add more open time and increase you flaking window. Use Xylene in most areas for best results or use Acetone in strict AQMD districts.

Chipping Window
Wait at least 15 minutes if the concrete is very porous or 20 minutes if it is tight before throwing the flake. If you throw the flake too soon you risk the chance of the 4195 Epoxy wicking up into the chip as well as the concrete. If this occurs then the edges of the flake may have a transparent look. Watch the floor and start flaking if it looks like it is starting to set up but be sure to flake within 45 minutes or so.
Just Before Chipping into 4195
Right after laying about 2 kits of 4195 and using the same roller used to apply the 4195, go out onto the wet floor and dry roll the 4195 (which should not take any longer than 10 minutes). This will cause the 4195 to tack up in areas that it may be drying. The chips will stick more evenly to the 4195 when using this method.
Touch Up a Holiday Where The Flake Did Not Hold:
This will not be an issue with experienced installers but if you do get a holiday where the flake does not cover then go ahead and use the 5205 (or the topcoat you will be using) and apply it very tight to the surface that needs more flake. Then sprinkle a very small amount of flake onto it just so it blends in to the rest of the area. DO NOT OVER FLAKE! This is the biggest mistake people make and it will be noticeable. Look at the touched up area from other angles to be sure it blends in. Allow it to dry 20 minutes (or the amount of time your topcoat needs) then do a light re-scrape. Now your floor is ready to be sealed.
Customer Comments:
F.Y.I. (from Shayne)
I recommended the 5205 as a primer coat under the 4195 for a monolithic floor.  Cliff of Hyteck painting advised that worked great.  The 4195 glided over the floor and it was so shiny that he thought it wasn’t dry after 45 minutes and had to touch to see if it was dry.  He also mentioned that he got better coverage out of the 4195 with that primer.  He thinks he is going to try the entire hybrid system on his next job, but he said he will not use the 4195 without that primer under it again.

Mike / Erica,

Much Thanks for  your time and support involving the fine tuning of my most recent floors ,   The floor here in Florida came out Exceptional!!    Information to share with others always helps  so here was  the process down here on my last project .. 
temp 85'     Humidity   at least 60% probably higher
220 sq ft
1)  Mechanical abrade ( Edco grinder w/ pumice stone heads)
2)  **4195** thinned w/ 1cup xylene..only used 3qts    and I did put it down pretty heavy
3) "dry"rolled it after 10mins..as we discussed...then flaked to rejection ...
4) next day  ..Excellent flake adhesion ...no missed spots ..no thin spots ...made for an easy scrape....
5)   **5205***    spread thin but complete coverage @ 220 sq ft ...only used 3 qts of it as well..
6)  then **5073**...Super Coverage with only 3qts   excellent backroll  with roller staying connected with material as we had discussed.
7)   Job came out Super ...customer happy   ..Me Happy :)
in hindsight I thought since I had such a good scrape and ended up with plenty of 5073 extra ..that I could have skipped the 5205...  I guess I am still learning in that respect, however the floor did came out as I liked so for now I will still try to use the 5205 first b4 the 5073...

Thank you very much again   ..I know alot of people are quick to contact you with the problems ..I just wanted you to know that I am grateful for the help and the excellent products as well......

PS please forward this to erica also      ...speak with you soon    Rich Mularski