100% Original Insulation Paper For Transformers - 6643 F-class DMD (DMD100)flexible composite insulation paper – D&F
100% Original Insulation Paper For Transformers - 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:





Related Product Guide:
Always customer-oriented, and it's our ultimate goal to get not only by far the most reputable, trustable and honest supplier, but also the partner for our customers for 100% Original Insulation Paper For Transformers - 6643 F-class DMD (DMD100)flexible composite insulation paper – D&F , The product will supply to all over the world, such as: Georgia, Bogota, Los Angeles, Our Company policy is "quality first, to be better and stronger, sustainable development" . Our pursuit goals is "for society, customers, employees, partners and enterprises to seek reasonable benefit". We aspirate to do cooperate with all different the auto parts manufacturers, repair shop, auto peer , then create a beautiful future! Thank you for taking time to browse our website and we would welcome any suggestions you may have that can help us to improve our site.

The company comply with the contract strict, a very reputable manufacturers, worthy a long-term cooperation.
