Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: do I need anything to mix with it and can I use it on vinly roof camper trailer
Document: Great alt to having your rubber roof replaced. Esp for older units where the replacement cost well exceeds the value of the RV. On a 31' travel trailer I used 5 1/2 gals.
Exactly what it say's it is. Great stuff. Went over all seams with it. Painted rest of roof with rubberized roof coating. Now I have peace of mind when my camper is setting out in the weather.
We have owned campers for 40 years. Best product I ever used on roofs. It's flexible so will last forever. Took my old roof and made it showroom new. Love this product. Several neighbors watched the process and can't wait to use it.
This product is great if you do the prep work correctly. If you don't it will not stick correctly. After stumbling around a bit with superficial cleaning and making a mess I found that if you follow direction to the T and clean up the surface very well, It works great. After the cleaning it was amazing. Bottom line, don't waste time and product unless you clean all the dust and debris on the roof, especially flat roofs. Then the product goes from hard to use to a dream to use.
I ordered 4 gallons to cover 160 square feet of camper roof. This should have been enough based on mfg's recommendation for coverage. It turned out to be too little because I had removed all of the old roof and re-sheeted with new OSB. The new OSB soaked up the first coat of rubber. The problem is I did not discover the issue until after leaving it to cure for 7 days. The initial covering looked thick and smooth after installing.
This stuff dried out my camper. I bought an older pop-up and on the first trip, had water pouring through the roof. Coated it with EPDM and despite my fears, the next trip turned out dry as a bone even with 2 days of solid rain. My only suggestion would be in the application phase. The stuff is thick. I used a roller and by the time I was done, had pieces missing. Either thin it or get some type of brush/squeegee combination to apply it.
I assumed this stuff would be ready to use right out of the can. There are two substances which must be mixed with a power drill. I do not have a mixing attachment for my drill. Some folks do not have drills. This should be clearly stated in bold print where people can see it before purchasing this.
I bought 4 gallons two years ago for my 1996 jayco travel trailer. I followed the directions and followed some youtube listings to see how the product went on. I had many leaks and had to patch three areas with membrane I then applied a coat of liquid rubber. It worked great. It has lasted two seasons so far. It did take some prep work, but was worth it. I will buy this product again.
Excellent product. Wish there was a way to use a partial can rather than having to use the whole gallon.
So, I decided I should have known better and ordered two more gallons. I just went outside to put on a second coat only to discover that the little bottles of catalyst you have to mix in were not shipped with the order. I believe in the product. I have every bit of faith it will work as advertised. I am just super sad that I cannot finish the job and have the 7 day cure period pass before camping with my family on Labor Day weekend.
Answer: yes