The AEROPOXY systems will cure completely at room temperature, or can be given an elevated temperature cure. AEROPOXY contains no MDA (a known liver toxin and carcinogen) and meets or exceeds current OSHA requirements for safe use. It satisfies all structural, pot life and wet-out characteristics according to tests by Rutan Aircraft Factory, and RAF recommended its use for all homebuilt aircraft applications.
The best ratio on AEROPOXY is 100:27 by weight or 3 to 1 by volume. In early 1996 several improvements were made to AEROPOXY. The viscosity was lowered for easier laminating, the occasional slight surface tackiness in high humidity was eliminated, the AEROPOXY hardeners were modified to prevent any tendency to crystallize in high humidity, and the mix ratios were modified to an exact 3 to 1 by volume.
https://www.aircraftspruce.com/catalog/pdf/AEROPOXYPR2032TDS.pdf