Here are the specs on it.
Total Caliper: 4 mil
Basis Weight: Not available
Smoothness: Not available
Whiteness:90
Brightness: Not available
Opacity: 92
Gloss Level: 2
Top-coating: Matte inkjet receptive
Inkset: Pigment, dye and mild solvent inks
Adhesive: Not applicable
Backing: Kraft paper liner
Heat Transfer Material should be handled with care before and after printing to prevent surface contamination that may spoil the print. The product should be processed in an environment of 65°-85° F (18°-30°C) and 30-70% relative humidity (non-condensing) that is clean and relatively dust-free. Store this product in its original packaging in a cool dry area until ready for processing. If storage conditions are outside the recommended operating ranges, allow the paper to acclimate in the specified range for at least 24-48 hours before use.
Full-color graphics for all types of transfers on light or dark colored cotton or cotton blend garments. This product should be printed right reading as with a standard decal, then placed on the garment to be transfered with a heat press and covered with a Teflon pad for transferring. Recommended time and temperature settings for heat transferring are 4-6 seconds at 325-330° F with a silica sheet or 8-10 seconds with a Teflon pad (we do not recommend using standard transfer tape). Transfers are as durable as post-processing care allows, and will break down as the fibers of the garment start to wear. Pigment and mild solvent inks are recommended for extended durability and longevity.
LINK TO MANUFACTURE