General Purpose Hand Lay-up Polyester Resin

"This is a great all-around general-purpose polyester-based resin designed explicitly for doing hand lay-up lamination when longer working times are needed.  This resin will remain tacky longer, facilitating the application of additional layers after a partial cure.  NOTE: Follow the TDS sheets for all resin types and follow the suggested time intervals for adding subsequent layers.  If you have any questions about this, please contact me." PLEASE NOTE: Many factors must be considered when sanding is not done between cured resin layers.  A good rule of thumb is to sand the surface if the resin has sat for more than 12-24 hours; however, this is heavily dependent on the temperature, catalyst percentage, and the environment in which the project is being worked on.  It's always best to err on the side of caution and sand the surface if you are unfamiliar with these factors.  Ortho-based, 100% made in the U.S.A. General Purpose Fiberglass polyester resin is a promoted orthophthalic, unsatu