F-DMD (6641)
Properties
F-DMD (6641) is made of two layers of non-woven laminated with one layer of polyester film, the different of DMD and F-DMD is on the adhesive resin, DMD uses the resin of class B while F-DMD us the resin of class F. It has good dielectric properties, high heat resistance and mechanical strength, is suitable for small and medium size electric motors as slot, phase, turn-to-turn, liner insulation of class F.
Data Form
Properties Unit Values Nominal Thickness mm 0.15 0.18 0.20 0.23 0.25 0.30 0.35 0.40 PET Film Thickness mm 0.05 0.075 0.10 0.125 0.15 0.19 0.25 0.30 Thickness Tolerance mm ±0.020 ±0.025 ±0.030 ±0.030 ±0.030 ±0.035 ±0.040 ±0.040 Nominal Gram and Tolerance g/m2 150±25 190±20 210±32 240±36 260±39 310±46 390±58 440±66 Tensile Strength MD unfold N/cm ≥80 ≥100 ≥120 ≥130 ≥150 ≥170 ≥200 ≥300 fold ≥80 ≥90 ≥105 ≥115 ≥130 ≥150 ≥180 ≥220 TD unfold ≥80 ≥90 ≥120 ≥115 ≥130 ≥150 ≥180 ≥220 fold ≥80 ≥80 ≥95 ≥100 ≥120 ≥130 ≥160 ≥200 Elongation MD % ≥ 10 ≥ 5 TD ≥ 15 ≥ 5 Breakdown Voltage At room KV ≥7 ≥8 ≥9 ≥10 ≥11 ≥13 ≥15 ≥18 At 155 ± 2c ≥6 ≥7 ≥8 ≥9 ≥10 ≥12 ≥14 ≥17 Deflexion MD N ≥10 ≥15 ≥20 TD ≥15 ≥20 ≥30 Bonding Strength at room temp. --- No delamination Bonding Strength at 180±2c 10min --- No delamination, No blister, No adhesive flow Bonding Strength at wateriness --- No delamination
Specification
1. Standard width: 1000mm, or slit into the width required   Packing: In Carton
2. Min Qty: 1000kg each size in a lot
3. Shelf life: one year from the data of delivery. It can still be used if it is qualified by testing after one year according to above Technical Requirement.
Note: The values noted in above technical specification are given only for our customers’ reference and should not be used in writing specifications.

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