I use Staples Color Laser Paper, 8 1/2" x 11", Glossy, 300/Pack item# 633215. It works well for me with the laser / laminator combination. It Should work with this heatless method. About $15 for 300 sheets.
Staples Color Laser Paper, 8 1\/2\" x 11\", Glossy, 300\/Pack | Staples®
Staples Color Laser Paper, 8 1\/2\" x 11\", Glossy, 300\/Pack | Staples®