I have used several of Papilio's products, including the white waterproof vinyl. It was 3 mm thick and matte white. It gave me great results. The "permanent white vinyl" was 5 mm thick and a glossy finish, but also gave great results. The "white adhesive polyester" was also nice ( I must've liked it cuz I just noticed my box is empty ). Personally, I use both the inkjet and laser papers in a laser printer and have had no problems.

I would steer away from their rub-on decal paper. If you need ultra thin contouring decals, the water slide will give better results.