Prosoco R-Guard Fast Flash

We really like this product

Just applied it, but if lasts as advertised this is a great product.

Great window and door flashing product. When applying this you can tell right away that it will not let water in. Start from top of opening and work your way down.

Loved this product. Turned my sons room from the cold to the nicest. Great for air and water proofing. Super tight.

Used on two new window frames and gave up. The material is sticky and hard to spread. One sausage might only be good for one and a half regular sized window. I ended up using good old window frame flashing tapes again.

Learned about it in the Build Show. Works really well, easy to use.

At first you will hate this product. It will feel messy and you will use way to much and think its to expensive. After a couple windows you will get much cleaner with it. The best part to me is how it seals air out. After windows are installed you cant feel a draft whatsoever and this is before you foam the window. Not to mention I know my windows will never leak. Is it expensive yes but the flashing tapes arent cheap either and are a pain and they arent perfect by any means especially if your openings arent great or brand new. You can coat a cardboard box with this then fill with water. It will not leak. Then you can put a screw through the box and it still wont leak. You can see a video of this on YouTube. I can now do a 36x60 window which had extremely large jams at 8.5 inches. Did inside and out around insulation lockouts. This one window took less than 1 tube of this. If your doing a normal window with normal jams you would use alot less. If you are using more you are using to much. It spreads along ways but doesnt feel like it will so it can be easy to use to much. The other product joint and seem filler is awesome as well. Im just a homeowner putting my own windows in and wanted the best product I could find. I also do not believe foam alone stops air drafts well as other windows I have without this leak air like a siv around the interior casing and I had to caulk them. No such problem with this product before foam

Product was fully expired when received. Only out a week. I used it anyway as it went on a personal project but would never have installed it on a job. It is excellent product though!

Great product! Good value

Price point lower than the H*ber brand and worked just as well for the project.