Ive used epoxy and micro balloons for a long time. I tried a quart of Super Fil several years ago and its so much easier to use. Stays where you put it, doesnt sag. The hardener does separate and needs to be mixed once in a while. This is my second quart that I use on model airplanes exclusively.

Great product fast delivery couldn’t be more pleased. Thank you

Fair price, easy to work with, very durable.

Perfect

Very easy to work with. Lightweight and dries hard. Its aircraft bondo

Used this to simulate the windshield gasket on a Stinson SR-9. Works very well and very easy to sand. Should be great on fillets. Much easier to sand and manipulate than epoxy and micro balloons. A bit hard to measure out, so using a scale would be the best way to do that. Would be nice for modelers if it were sold in smaller portions.

A great product and very good service.

great, easy to use product

Product worked just as described.

Repeat customer on this product as it does a great job.

Poly-SuperFil sure is one good product . I use it for model airplane fillets and more. Also on woodwork, as I do general painting as my work. This stuff I tried on concrete some time ago still holding firm,sands ok also.Again, good stuff.

Works well with styrofoam, sands to a nice feathered edge.

Lightweight product that is easy to work with, has a slow drying time and very smooth sanding qualities. Used it to make repairs to my Stinson to fair out where hard points and fabric meet and crack over time.

Excellent fill and sand ability properties.

Easy to mix, apply, and sand. Extremely lightweight. Adheres well to any surface. Works great for filling dents. Im very pleased with the result. I believe it can be easily used for may applications, not just aviation use.

I have used this product for years in filling the low spots and weave of my glass airplane. It works, is easy to sand, cures fairly quickly and bonds to the glass very well after light sanding to remove the glaze. After 14 years the paint still looks good and I have had no bonding or cracking problems

GOOD

Im using this in model airplane applications so I doubt Ill ever see the bottom of the jar! Very light weight fills nicely. Easy to sand. The only down size its difficult to get a 2:1 mix in small quantities teaspoon and tablespoon size sort of mixes. Lean toward too much hardener as it will cure the other direction it never cures and is quite difficult to remove the uncured mess to do it correctly.

hard to mold put when it sets overnight it is hard as a rock and seems to stick well. The best thing is that when you wes sand it ,it smoothen out great and fills well and ready for primer and paint. just wish it would set up a bit quicker.

I used this product to fill low spots on my Glasair wing. I stored the wing for several years until I was ready for paint. When I was ready to paint, I removed the wing from storage to find cracks everywhere I used this product. I took me several months full time to remove this product and went back with a 3M product.