I think all EM waves refract AND reflect, however, this would be very hard to
demonstrate in the lab because of the wavelengths (and materials) involved.
Reflection of E&M waves is indeed difficult to demonstrate in the lab, except
when you look at yourself in the lab's mirror.
Refraction is also nearly impossible to demonstrate, unless you wear glasses.
Refraction an reflection can be demonstrated in the lab with water waves, and
with a bit of cleverness and innovation, with sound waves too.