EternaPrime Adhesive and Surface Conditioner Spray - 12.2 oz Can | EB-EPSPC | Aids in Adhesion on Dirty or Dusty Surfaces - for MicroSealant and Other Self Adhesive Seaming Tape

Worked as described! Easy to use, feels tacky/sticky when ready, holds up strong! Sprayed on the roof before using the tape and got a tight seal.

worked great

Purchased to use with Eternabond membranes. Size of can fits in my tool bag ok and doesn't leak. Simple to use with its spray nozzle and comes out a good thickness and coverage. Hoping it will provide a durable seal to the substrate. No issues so far. Applied some in colder temps and seems to be holding up. Use it for work for roof investigation patches. Good value and works well with the products it was intended.

Great product with the primer and membrane.

for what it is and how the tape works I am not sure you need it if you apply it if less than 60 degrees. Above that cleaning and direct application seems to work just fine....pun intended. Use this at lower temps as it is super sticky.

I am finding that trying to prime surfaces (like a rubber roof) with acetone are ineffecient, ineffective and probably not even a good idea. So I finally went in for this stuff and I have to say that I think it's pretty much necessary to apply eternabond correctly. It sprays what seems to be almost like a aerosol-like version of the eternabond substance that primes the area in a really nice and sticky way that is impossible to get with other methods like deep-cleaning, acetone, sanding, etc. I think if you are bothering to get on top of your RV roof and risk your knees and your life to fix some leaks, I owe it to myself to use the easiest method possible. So I think it's worth the cost. It was for me much easier than keeping a bottle of acetone and cloth near enough to the roof area where I was working so that I could access it without spilling a container of acetone on my rubber roof (yikes!) It's much more practical to just have the bottle of Eternaprime. Perhaps the calculation is different if you are not balancing yourself on a rubber RV roof. I have seen comments where people say that this is just acetone but I have used both. Acetone is just a liquid and when rubbed, will completely remove not just the dirt, but paint and the existing rubber on your roof. As opposed to rubbing acetone on my rubber roof, this primes is by just spraying a mist of what seems like a very sticky substance although there might be acetone mixed in, this is not acetone. Here is my review of how I actually used the Eternabond on my trailer: https://www.amazon.com/gp/review/R1MYD6HPXHAQCF?ref_=glimp_1rv_cl

One of the professional roofer's industry secrets! You probably do not need a roofer if you can simply get this and apply it properly. You might need a can or two of EternaClean and EternaPrime if you applying it in the winter or in a dirty, dusty environment, but it doesn't take long to use and it holds and lasts. I had tears in the airform of my 60 foot diameter Monolithic dome house which were allowing water to leak through to the inside and used this to fix them. Some of the tears in the airform were as much as 6 feet long. No leaks whatsoever now. Also used it to seal the area around our sunscoop skylight. It has rained and snowed since I applied the stuff and not a drop has gotten inside. If you have leaks in your house, this will fix them, no matter what the outside material is made of unless it is PVC or it is wet. So be sure the area you are patching is dry when you apply it or it won't stick at all. However, once it sticks, it sticks and even if it gets soaked soon after it sticks, it will stay put. Really good stuff. If you have a leak, don't wait to fix it! If you do you can wind up with rotten wood, mold and other problems. Just buy this stuff and spend at most a few hours on it, and you'll be rid of your leaks for quite a long time.

Unnecessary part of the application process. Waste of money and not able to return it even though it is unopened