I assume the hands have a set of human fingerprints built in, and the gloves are used when to you need to use a fingerprint scanner and hide your identity. So

I assume the hands have a set of human fingerprints built in, and the gloves are used when to you need to use a fingerprint scanner and hide your identity. So the liquid adhesive wouldn't have worked, but I'm not sure why he couldn't make a set of fake prints using a small rubber mold that would only cover fingertips.