Fast delivery Prepreg Insulation Paper – 6643 F-class DMD (DMD100)flexible composite insulation paper – D&F
Fast delivery Prepreg Insulation Paper – 6643 F-class DMD (DMD100)flexible composite insulation paper – D&F Detail:
6643 Modified Polyester film/polyester non-woven flexible laminate is a kind o fthree–layer 100% epoxy resin saturated flexible composite insulation paper in which each side of the polyester film (M) is bonded with one layer of polyester non-woven fabric (D), then coated with F-class electrical insulating resin. 6643 flexible electrical insulation paper is used as the slot insulation, interphase insulation and liner insulation in F class electric motors, especially suitable for mechanized inserting slot process. 6643 passed SGS test for toxic and hazardous substance detection. It is also called as F class DMD, DMD100, DMD-100 electrical insulation composite material for electric motors.
Product Features
With coated heat-resistant resin which encapsulates the inner polyester film & adhesive, thus 6643 has excellent heat resistance property, excellent mechanical properties, excellent electrical properties and higher thermal resistance.
Applications
With coated heat-resistant resin, its surface is more smooth. It is suitable for mechanized inserting slot process.
6643 is used for slot insulation, inter phase insulation and liner insulation in F class electric motors, especially suitable for mechanized inserting slot process.
Supply Specifications
Nominal width:1000 mm.
Nominal weight: 50+/-5kg /Roll. 100+/-10kg/roll, 200+/-10kg/roll
The splices shall not be more than 3 in a roll.
Color: white, blue, pink or with D&F printed logo.
Performance Requirements
The standard values for 6643 are shown in Table 1 and relevant typical values shown in Table 2.
Table1: Standard performance values for 6643 DMD 100 flexible insulation paper
No. | Properties | Unit | Standard performance values | ||||||||||||||
1 | Structure | mil | 2/2/2 | 2/3/2 | 2/4/2 | 3/3/3 | 2/5/2 | 2/6/2 | 3/5/3 | 2-7.5-2 | 3-7.5-3 | 2002/10/2 | 2003/10/3 | 2-14-2 | 3-14-3 | ||
2 | Nominal thickness | mm | 0.15 | 0.18 | 0.2 | 0.23 | 0.23 | 0.25 | 0.28 | 0.3 | 0.35 | 0.36 | 0.4 | 0.45 | 0.5 | ||
3 | Thickness tolerance | mm | ±0.020 | ±0.025 | ±0.030 | ±0.030 | ±0.030 | ±0.030 | ±0.030 | ±0.035 | ±0.040 | ±0.040 | ±0.040 | ±0.045 | ±0.050 | ||
4 | PET film’s thickness | mm | 0.05 | 0.075 | 0.1 | 0.075 | 0.125 | 0.15 | 0.125 | 0.188 | 0.188 | 0.25 | 0.25 | 0.35 | 0.35 | ||
5 | Grammage | g/m2 | 160 | 210 | 245 | 255 | 265 | 310 | 325 | 360 | 400 | 445 | 505 | 580 | 640 | ||
6 | Tensilestrength | MD | Not folded | N/10mm | ≥90 | ≥110 | ≥130 | ≥120 | ≥150 | ≥170 | ≥170 | ≥200 | ≥220 | ≥260 | ≥300 | ≥330 | ≥360 |
After folded | ≥80 | ≥100 | ≥110 | ≥105 | ≥120 | ≥140 | ≥150 | ≥180 | ≥200 | ≥220 | ≥240 | ≥280 | ≥300 | ||||
TD | Not folded | ≥80 | ≥100 | ≥110 | ≥105 | ≥120 | ≥140 | ≥150 | ≥180 | ≥200 | ≥220 | ≥240 | ≥280 | ≥300 | |||
After folded | ≥70 | ≥80 | ≥100 | ≥95 | ≥110 | ≥130 | ≥130 | ≥150 | ≥170 | ≥200 | ≥220 | ≥260 | ≥280 | ||||
7 | Breakdown Voltage | Room temp. | kV | ≥7.0 | ≥8.0 | ≥9.0 | ≥8.0 | ≥11.0 | ≥12.0 | ≥11.0 | ≥13.0 | ≥15.0 | ≥17.0 | ≥18.0 | ≥20.0 | ≥22.0 | |
8 | Heating influence180℃+/-2℃,10min | - | No delamination, no bubble, no adhesive flow. | ||||||||||||||
Note*: Grammage values are only for reference. It can also depend on user’s special requirement if applicable. |
Table 2 Typical performance values for 6643 DMD 100 flexible insulation paper
No. | Properties | Unit | Typical performance values | ||||||||||||||
1 | Structure | mil | 2/2/2 | 2/3/2 | 2/4/2 | 3/3/3 | 2/5/2 | 2/6/2 | 3/5/3 | 2-7.5-2 | 3-7.5-3 | 2002/10/2 | 2003/10/3 | 2-14-2 | 3-14-3 | ||
2 | Nominal thickness | mm | 0.16 | 0.18 | 0.21 | 0.23 | 0.23 | 0.26 | 0.28 | 0.3 | 0.35 | 0.36 | 0.4 | 0.45 | 0.5 | ||
3 | Thickness tolerance | mm | 0.015 | 0.018 | 0.02 | -0.01 | 0.015 | 0.015 | 0.018 | 0.02 | 0.024 | 0.018 | 0.02 | 0.025 | 0.03 | ||
4 | PET film’s thickness | mm | 0.05 | 0.075 | 0.1 | 0.075 | 0.125 | 0.15 | 0.125 | 0.188 | 0.188 | 0.25 | 0.25 | 0.35 | 0.35 | ||
5 | Grammage | g/m2 | 165 | 210 | 245 | 255 | 270 | 327 | 330 | 365 | 400 | 445 | 519 | 580 | 640 | ||
6 | Tensilestrength | MD | Not folded | N/10mm | 130 | 170 | 210 | 180 | 230 | 158 | 270 | 290 | 223 | 345 | 305 | 420 | 425 |
After folded | 130 | 160 | 200 | 180 | 220 | 132 | 270 | 270 | 201 | 335 | 242 | 420 | 425 | ||||
TD | Not folded | 100 | 140 | 200 | 150 | 210 | 138 | 240 | 320 | 205 | 380 | 243 | 450 | 455 | |||
After folded | 100 | 140 | 200 | 150 | 210 | 123 | 240 | 310 | 173 | 370 | 223 | 450 | 455 | ||||
7 | Breakdown Voltage | Room temp. | kV | 8 | 12 | 13 | 12 | 14 | 15 | 14 | 21 | 21 | 22 | 23 | 28 | 29 | |
8 | Heating influence180℃+/-2℃,10min | - | No delamination, no bubble, no adhesive flow |
Packing And Storage
6643 is supplied in rolls, sheet or tape and packed in cartons or/and pallets
6643 should be stored in clean & dry warehouse with temperature below 40℃. Keep away from fire, heat and direct sunshine.
Production Equipment
We have tow lines, the production capacity for flexible capability is 200T/month.
Product detail pictures:





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Our enterprise since its inception, often regards solution excellent as enterprise life, continually strengthen output technology, enhance product high quality and continually strengthen organization total high-quality administration, in strict accordance using the national standard ISO 9001:2000 for Fast delivery Prepreg Insulation Paper – 6643 F-class DMD (DMD100)flexible composite insulation paper – D&F , The product will supply to all over the world, such as: Argentina, Netherlands, Uganda, Based on experienced engineers, all orders for drawing-based or sample-based processing are welcomed. We have won a good reputation for outstanding customer service among our overseas customers. We will continue to try the best to offer you good quality products and the best service. We are looking forward to serving you.

The goods we received and the sample sales staff display to us have the same quality, it is really a creditable manufacturer.
