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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.
Q. What do you do on a garage floor when you have a control joint or an expansion joint in the concrete floor which you want to install the roll on rock system 4 over?
A. You always leave them. Be careful not to let the epoxy puddle into the joint. When scraping the flake you will also trim the edges of saw cuts by slicing the scraper along the edge of joint. This cuts the flake edges off to the edge of concrete leaving a clean line. The reason you do not fill the joints is that whatever you fill it with will probably crack from the expansion and contraction of joint.
Q. Hi Mike...Although the Hybrid system went pretty smooth, we noticed that there wasn’t that high gloss that the sample swatches have. Is there a way to match that gloss for this particular garage with another top coat? Or are we past the point for that garage? We are laying the 4195 with the 5073 top coat on two garages this week. We'll see how that goes but eventually we want to come very close to the gloss on the swatches, even if it means going out extra days. Can you suggest a system or additional steps that we can take with the 4195 system to achieve this look.. Thanks. Frank Collea. Smart Garage
A. OK, if you are using 4195 make sure you give the floor a good scrape. It will be difficult to scrape of the flake so don’t worry about giving it a lot of elbow grease. That procedure with a coat of 5073 should be fine. If you want more than that, go with the same aggressive scrape procedure but apply a coat 5205 over the flake first. This will seal the flake and dry fast so you can put a coat of 5073 on top of it 25 minutes later. You will have the best build doing it that way and you don’t have to go back on another day to do it. You can also start selling the 1-inch flake, this will give the appearance of high build without using more material. The reason is that the larger flake will lay flatter and have less surface area for the topcoat to cover (the small chip is more jagged which creates more surface area that needs more material to cover it). Also, it will have more shine because there is less texture (texture always takes away from gloss). You may want to do a job with the 1 inch to see it for yourself. Also by the time the 1 inch flake gets to the floor and is scraped it usually comes out looking like ½ inch.
5073 Topcoat Tips:
Work the material as listed above in the how to get most potlife section. The biggest thing to stress is uniform thickness. By using an 18 inch roller you are spreading the material more evenly since there are 2 pressure points be applied to the roller (the left & right side). Also be sure to cross roll all sections before proceeding to the next section. Watch for low spots or puddles as these will become shiners (round glassy areas that are noticeable). If applying another coat after 24 hours then be sure to lightly sand the surface to de-gloss it. 5073 Tip Guide can be accessed by clicking here 5073 Rolling Techniques
New Construction Selling Point:
On most new developments the garage floor option is the last option to be done so it is usually done a day or so before the close of escrow. With most systems you have to wait 2-3 days before being able to use the floor. That is not the case with system 4, they can put it back in use the next day which means the development can release the property a day or 2 early which saves them interest and it reduces the chance of call back since the floor will be ready to take wear from other subs doing clean up.
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,
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......
speak with you soon Rich Mularski
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