Hi All

All good advise and tips here.

THE question of applying heat to the layup. We used this method in the early 90's to speed up or production once the layup was done . We had a hot box, walk in closet type thing, set to around 90F. Also heat can be used to post cure a part. 140F for around 2 hours can yield up to 15% more stiffnes in the part. use caution to avoid deformation of the part, or put it back in the mold. Post curing can be done anytime after part has cured under normal ambient temp.

One thing to note, cooler temps make the excess resin in the weave harder remove due to it being thicker, thereby yielding a heavier part. All our parts and molds are made from West Sys. Some molds are 16 years old and still perfect, even the large composite one piece wing molds.

Steve