IST Industrial Summit Technology

Product Line

Pyre-M.L.®

Polyimide Resin

The Pyre M.L.® product line encompasses a family of enamels employed in insulation of magnet wire. The insulated wire based on Pyre M.L.® enamel has the highest thermal rating of 240º C continuous use temperature from NEMA. In addition to its very high thermal rating, wire insulated with Pyre M.L.® enamel has very good flexibility and excellent solvent resistance. This outstanding combination of properties has made Pyre M.L.® insulation the choice for the most demanding magnet wire applications for over four decades. To fulfill customers strong demands in recent years, we have made additions to the family, such as higher solids level products that allow more efficient manufacture of magnet wires. These new high solids level products developed by our lab have been used by many magnet wire manufacturers and acquired excellent reputations by increasing their productivity.

Fields of Application

Pyre M.L.® Product Specifications

Code RC-5019 RC-5057 RC-5069 RC-5097 RK-692 RC-5083 T-8585
Type I I I I I Mod. I Thinner
Solids (%) 15.0-16.0 14.5-15.5 12.4-13.2 10.5-11.5 11.6-12.4 18.0-19.0 -
Viscosity (Poise) 50-70 50-70 5-12 105-135 6-10 20-40 -
Solvent System
(+-5%)
NMP (%) 100 80 80 80 80 80 80
Aromatic
Hydrocarbon (%)
- 20 20 20 - - 20
Xylene (%) - - - - 20 20 -
Density lbs/gal (±0.05) 9.11 8.80 8.72 8.64 8.59 9.00 8.21
kgs/gal (±0.023) 4.13 3.99 3.96 3.92 3.90 4.08 3.72