I recently purchased this product. I followed instructions and coated some knots on three different lines where I added mono loops with nail knots.

According to the package this stuff dries very quickly, Seconds in the sun and minutes otherwise.
I coated my knots about 20 hours ago and the coating is not yet dry.
Could ther be a logical reason or did I get a bad package, maybe out dated? I don't see an expiry date on the package or the tube.