Aeropoxy Light, a modification of the ES6279 adhesive system, is a two-component paste epoxy patching and filler compound for foam, wood, fiberglass and other surfaces. The mixed consistency of this system is very smooth and creamy, so it spreads easily, and can be splined to a feather edge without separation. It is a thixotropic, non-sag material that will remain in place in thick sections, even when applied upside down! The resin and hardener of this system are color coded for easy mixing. The resin is white and the hardener is brown, giving a good visual indication of complete mixing with a uniform tan color free of streaks. AEROPOXY LIGHT has special low density fillers incorporated into it that provide very distinct benefits. It is a very light material (4 pounds per gallon), and therefore contributes minimal added weight to the filled or repaired structure. Also, the cured material is very easy to sand, making the finished patch undetectable when covered or painted. There are no volatile ingredients in AEROPOXY LIGHT, so the cured material will not outgas, which could cause a loss of adhesion of paint or coverings. Sold in kits of part A and B.
we used this as a patch material on our de-ice plates on our PA-31-350. It has a longer dry time (5+ hours) so you need to be prepared to wait. We had to make a very thick patch and didn't mix with enough hardener - had to scrape it off - after 11 hours it was still mushy... MEK takes it right off... we re-mixed and didn't use it so much as a resin filler as a skim coat/patch. Remixed with more than recommended hardener and it worked great. The material is very lightweight when finished.
Can this Aeropoxy Light filler be used on aluminum?
Yes. This is an epoxy based filler and will bond well to properly prepared, clean aluminum surfaces.