Insta-flex flexible thin ca is ideal for many applications, including the installation of ca hinges. When cured, insta-flex does not turn brittle and remains clear, even if accelerated with insta-set. It has superior shock resistance. Although not as thin in consistency as insta-cure, insta-flex still has good penetrating qualities and its application can be easier to control. For ca hinges, we recommend drilling a 1/16"" hole in the center of the hinge slots to insure the complete saturation of the hinge when insta-flex is applied. Insta-flex? Has a different, less irritating odor compared to regular ca's, but still can not be used on white foam. Insta-flex has also proven to be superior when bonding anodized aluminum. (bsi119)