System Three SculpWood Paste Epoxy Wood Filler, 0.5 Gallon Kit

Used to repair T & G porch floor on an historic home. Had pre-sealed cracks with 10 packs of JB Weld woodweld which can't be beat. Had I known this product existed, it is so good, only half the JB was needed. Unlike Bondo for wood or other exterior wood fillers that go on like half-dried putty, this product goes on like peanut butter. It dries shiny and hard as a rock. A quick sanding and its paint ready. Using Tuff Coat (marine) epoxy paint to finish it.

I don't have a before picture but 6 inches of the bottom rail of this wooden storm were rotted out. Just an irregular hole that had completely removed the surface for the glazing as well. I was able to build it up in 3 applications, sand to shape and re-putty. Great stuff! 8/22/24 update - Did another repair on a rotted bench seat cap rail using Rotfix and Sculpwood Paste. Worked like a charm! Able to apply both products in one session, sand, prime and paint the next day.

I am giving this a five star rating after using to do some restoration on some 1937 windows that have diamond glass and are really a chestnut of the look of the house. There were significant issues with rot and galvanic rot in the Doug Fir used. These windows are south facing really get the sun / rain cycle here, the weather side.First task was to just get them freed of the many layers of paint. I want to add I was given some great advice on not just what had to done, but also the general workflow and order of work. By time this came into play I had already treated the wood and also used their StopRot product. Used the supplied gloves and starting with two ping pong ball size scoops, one from each container, found it very easy to work with. The lower rail on each window had significant repair needs as did the lower portion of both stiles.I used some oak lath with plastic barrier to form some very difficult 'lost portions' one of which is 1/4 inch wide by maybe 1/2 to 5/8 inch deep that hides the hinges. ! I have to say that coupled with the StopRot pre treatment I am extremely impressed.Really the same story goes for the repair of the window sill and fascia wood around the outside opening. Significant issues. And following the same process all the original shape returned.The working time, they recommend 15 minutes worth of mix at a time to start, was ample but as I say I had done some significant prep. I used metal putty knives to get the sill shape back. It does dry to a seeming soft and sandable texture and if you slightly overfill the sanding even say in a case like an ogee or double ogee shape can be matched with time and care.It really made a very difficult project possible and the restoration looks fantastic and I believe will last a good long time.The dried color is not a concern as I am painting all these areas.

I use gallons of System 3 epoxies each year for my restoration work. The products are readily available and have the best tech support of any company, equal to Simpson Strong Tie. Sure wish all the big companies would follow thier lead for support.Before the epoxy hardens I clean tools and spills with white vinegar, then rinse with water.The paste is easily formed before hard set with profile scrappers. Then finished with sand paper after hard set occurs.System 3 = awesome

Works well. Heed the advice to not make too much at one time - it dries quickly to the point of being less workable.

For some reason I have subsequently questioned, I turned a bowling alley floor into a 12' x 3' workbench. All came out of okay in the end, but it was not a fun journey. There were a lot of small cracks between the alley lumber. This material filled the cracks reliably and boy is this material strong. If you've used Bondo on a car, this is like the super strong version of that for wood. I will warn you to use is sparingly because putting it on wet is a lot more fun than taking it off dry. But it's great stuff.

I use it like spackle for exterior trim. It works well for weathered wood, if you are remiss in your facia upkeep. :( Mix only what you can use in 15 minutes, less if it is hot.

This is the best wood filling product I have used for exterior work. It works great for filling cracks and holes back to level. The putty is a better product if you have a recreate a profile or have a complex shape. It is easy to mix up and apply. It is sandable after it sets, but is harder than the surrounding wood. You need to take some care to ensure you don't over sand the wood you are patching up.