rpsinc
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We used this on our coach. Mix small batches at a time. If you mix a 5 gallon bucket all at once, it will kick off before you're done. I mixed 2 or 3 gallons at a time. Half a 5 gallon bucket will work if you apply it quick enough. For those that had leftovers, some of the roof did not get enough coating. We did have one issue. Although the roof seems to be sealed fine, a few months after we applied Liquid Rubber, gray splotches started to appear all over the roof. The splotches got larger an darker and eventually covered the entire roof. It looks pretty bad. The manufacturer was no help whatsoever with this problem. I have no idea whether this will have any affect on the product in the long term. Chuck
I have done a couple RVs with Liquid Roof as well. Use a 5 gallon bucket with a screen in it like for painting. Just put the product in that you use. The older product will go off but it makes working mcuh easier and easier is faster too. Dont mix product until you are ready with EVERYTHING. I would guess that splotches may have been caused by substrate interaction. Be watchful for delamination. I try to add a bit of bleach to my final wash solution to kill any organics (mold etc) before I apply the product. Rinse well and let dry completely or you might get mold from water trapped under product. Be VERY thorough with prep. Shortcuts will bite you in the butt!
I have even used a yard blower to remove any debris and moisture before applying product.
RV EPDM Roof Coating Advice (Liquid Rubber)
in RV Housekeeping
Posted
I have used Liquid Rubber many times and spent alot of time looking for instructions for cleaning the roof to assure success. I did not find much comprehensive information on line or on their containers. I called the company and was able to speak to the man that said he invented the product. He was kind enough to spend time with me explaining what works best and when I did a few coaches with his product, I was able to have a successful outcome. I have attempted to pass this along by sharing this info and my own experience to others that have inquired.
There are many topics on this forum that I have contributed to which I have spoken about how to do certain steps for a good outcome. If you PM me I am glad to repeat for you or answer any specific question you may have.