The key difference between contact cement and rubber cement is that it contains latex, making it water-resistant. Unlike contact cement, which doesn’t contain latex, rubber cement allows you to adhere to two surfaces without waiting for them to dry.  It’s also much more resistant to being washed off of your hands than contact cement. Because it’s water-resistant, you can use it for leatherwork, household repairs, and other craft projects. When using a hot glue gun, you should always remember whether your adhesive dries clear.  Your glue should be clear when cool so it won’t show on lighter-colored pieces. This ensures that your project looks professional. If used, contact cement or white glue will leave a sticky residue on lighter objects.