Peel ply (40"x400") for Glass Fiber Vacuum Infusion Process Bagging Tools for Hand Lay-up High Temperature Resistant

Wow did this stuff really help with standard lamination. We were laying up 3.5 ounce s-Glass fiberglass over a small plywood (4 mil) sailboat. We used Epoxy resin and rollers. This involved really tight corners (S Glass usually not so forgiving) and it was big enough of a project for exothermic problems. With my boy at my side, we tackled the project with rollers and paint trays, doing our best Russell Brown imitation (check out his videos for proper technique). I've done alot of epoxy work in the past, but never any vacuum bagging or even using peel ply. I'm really, really, blown away how well we did; there are only two small voids that need to be sanded out. Everything looks really tight, even around the hard chine corners. My only regret is that I didn't go heavier with the epoxy resin. We also got a long, thin gaff, as seen in the picture. This lapse had more to do with the speed we were working than with a defect in the product: we simply didn't wet it out enough. No big deal. I can handle some light block sanding here and there. One important tip: leave enough peel ply cloth extended beyond the piece you are working on and don't get it wet with resin. The clothy bit will be your handle when ripping off the peel ply, after the project has been set. Good stuff, but I wish it were less expensive and I feel bad about the environmental waste that goes along with this technique (you can'r re-use the peelply).

I used this barrier as part of a larger process called vacuum bagging. In short fiberglass or in my case carbon fiber is coated with epoxy and wrapped over a prepared surface which is in turn wrapped with this peel ply product. Following that, a breather fabric ( looks like craft fluff) is wrapped around the whole assembly and it is placed in a plastic sealed bag. A vacuum is applied to the bag (I use a vacuum pump) and the bag walls push down uniformly on the "sandwich" with about 14 pounds per square inch everywhere. When the epoxy has set, the bag and breather fabric is removed from the sandwich and the peel ply is peeled away from the surface. The peel ply allows excess epoxy to pass through to increase the compressed strength of the sandwich and also leaves a slight texture (tooth) on the surface of the product to aid in adding additional fiber coats or for painting. It peels off easily. The film is not elastic but the pressure flattens the film with flat wrinkles. The wrinkles show up as thin lines on the surface and they are easily sanded or ignored. The high temperature feature is nice for industrial users with big ovens using a heat cure process with special fiber called pre-preg. That's pretty advanced for me, so heat resistance is a feature I don't use.

The fabric is okay but is shipped folded and creased. This completely defeats the purpose of Peel Ply.

Most people use peel ply when vacuum bagging fiberglass but I use peel ply anytime I am doing fiberglass work. It is an easy way to not only get a semi-smooth finish (you'll still need to fair and sand, just not as much) but it also helps so that you don't get too heavy on the resin or epoxy. I use West System epoxy and either csm or biaxle cloth most of the time.This peel ply was easy to use. Excess epoxy comes through the peel ply and then when cured I just peel the peel ply off removing the excess and it gives a finish that is easy to fair if you need to.

I gave this 5 stars because it’s an amazing product that never tears and does what it is supposed to do. However, it is difficult to get to stick down flat where it was folded. It wasn’t a big enough deal to knock off a star, but user beware.

I was skeptical of the quality of what appeared to be off-shore peel ply. However, what I received was 1st quality material. It was clean and neatly folded in a bag. I've used it twice so far, and it works great.

The fabric itself performs as it should, however it comes folded in the package about a million times over, and in such a fashion that it's kind of a nightmare to deal with. If you're using this to go over top of a hand layup, not only is it a royal pain to unfold in such a fashion that keeps it clean and off of the ground, every crease will pucker up no matter what you try, and you will end up with resin ridges, dry glass, air bubbles, and a lot of sanding and post layup repair to do. Buy something that comes on a roll and save yourself the hassle.

Didn't quite stick as well as I thought it would