Polyimide Tape Jumbo Roll
 | Polyimide Tape Jumbo Roll
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PVC Electrical Tape Company is a polyimide tape jumbo roll manufacturer supplying large-roll material for converters, slitters, rewinders, die-cutting factories, and production users. This amber single-sided tape is made with polyimide film and silicone pressure-sensitive adhesive for high temperature masking, electrical insulation, and narrow-roll conversion. Jumbo roll width, log roll format, core size, slit tolerance, roll length, and winding tension can be checked through sample roll confirmation before mass production.
Product Images
Benefits
- Supports custom slit polyimide tape production for converters, slitters, and rewinding users.
- Typical slit tolerance can be controlled at +/-0.1 mm to +/-0.3 mm after specification confirmation.
- Log roll and spool form options help reduce roll change frequency on production lines.
- Silicone adhesive coating consistency supports cleaner slit edges and more stable die-cut shapes.
- Stable unwinding helps reduce blocking, jerky release, and sudden tension changes during conversion.
- Sample roll confirmation helps check core fit, roll OD, slit edge quality, telescoping risk, and residue after heating.
- Thickness options can be selected according to masking temperature, insulation need, die-cutting stability, and machine handling.
Applications
- Narrow-roll conversion for tape converters, slitters, and rewinding plants
- Converting high temperature polyimide tape rolls for PCB masking and insulation parts
- SMT masking where amber tape visibility helps positioning during production
- Wave soldering and reflow soldering masking after sample roll validation
- Gold finger protection during printed circuit board processing
- Transformer insulation, motor coil insulation, and lithium battery insulation
- Die-cut converting for heat-resistant electrical insulation parts
- Production-line use where longer roll length reduces changeovers
How Should Jumbo Roll Width and Core Size Be Confirmed Before Slitting?
Before narrow-roll conversion, jumbo roll width and core size should be checked against the slitting machine, rewinding shaft, and final roll format. A wide polyimide tape log roll may look suitable in specification sheets, but converters still need to confirm usable web width, edge trimming allowance, core ID, roll outside diameter, and tension setting before production. Common factory reference options include 38 mm and 76 mm core ID. Sample roll confirmation helps check whether the roll runs smoothly, whether the slit edge remains clean, and whether the adhesive layer stays stable during rewinding.
Technical Data Sheet
Item | Typical Value |
Backing Material | Polyimide film |
Adhesive Type | Silicone pressure-sensitive adhesive |
Color | Amber / golden brown |
Total Thickness | 55 um-100 um typical factory test range |
Film Thickness | 25 um-50 um typical reference value |
Adhesive Thickness | 25 um-50 um, adjusted by confirmed specification |
Jumbo Roll Width | Up to 500 mm common log roll width, wider coating width subject to confirmation |
Custom Slit Width | 3 mm-500 mm, based on slitting machine and order specification |
Slit Width Tolerance | +/-0.1 mm to +/-0.3 mm typical factory control range |
Roll Length | 33 m, 66 m, 500 m, 1000 m, or spool length after sample confirmation |
Core Size | 38 mm or 76 mm core ID |
Roll Outside Diameter | Confirmed by roll length, thickness, and machine holder space |
Adhesion to Steel | 4.0 N/25 mm-7.5 N/25 mm typical reference value |
Tensile Strength | 90 N/25 mm-150 N/25 mm typical factory test range |
Elongation at Break | 40%-80% typical reference value |
Dielectric Strength | 5 kV-8 kV typical reference value |
Heat Resistance | Typical heat resistance reference up to 260 C continuous use and 280 C short-time masking after sample confirmation |
Unwinding Check | Stable release, no obvious blocking, telescoping check required |
Residue Check | Sample roll observation after heating on actual substrate |
Product Overview
This polyimide tape jumbo roll is made for conversion work, not general small-roll use. It can be supplied as jumbo roll, log roll, master roll, or spool form, depending on how the material will be slit, rewound, die-cut, or used on production equipment. A polyimide tape log roll is often selected for later narrow-width slitting, while spool form is more suitable when a longer running length is needed to reduce roll changes on automated machines.
The tape uses a heat-resistant polyimide film backing with silicone pressure-sensitive adhesive. Typical total thickness is 55 um-100 um, with 25 um-50 um film and 25 um-50 um adhesive as common factory reference ranges. Thickness is not selected only by looking for the thinnest option. In real production, it should match masking temperature, insulation requirement, die-cutting stability, and how the tape behaves during rewinding.
For converters and production users, roll performance can be just as important as temperature resistance. Batch sample checks usually review roll edge neatness, telescoping risk, unwind force stability, adhesive coating consistency, and slit edge quality. Adhesive transfer and residue after heating can also be checked on actual substrates, especially for PCB solder masking, SMT masking, and electrical insulation parts.
PVC Electrical Tape Company supplies large-roll polyimide tape in master roll, log roll, or spool form according to confirmed production needs. Before production, customers usually confirm 76 mm core compatibility, roll outside diameter, trimming allowance, final roll length, and winding tension setting. For long rolls or spool form, roll OD should be checked against machine holder space to avoid feeding issues during continuous operation.
What Affects Stable Unwinding During Narrow-Roll Conversion?
Stable unwinding depends on more than film thickness. For silicone adhesive polyimide tape rolls, converters should pay attention to adhesive coating consistency, roll winding tension, edge alignment, telescoping control, and storage condition. Uneven coating or poor roll tension may cause blocking, jerky release, edge lifting, or adhesive transfer during slitting. During sample roll observation, the roll should unwind evenly under controlled tension, keep the film flat through the cutting section, and support repeatable narrow-roll conversion without frequent machine adjustment. Residue after heating and slit edge cleanliness should also be checked before confirming bulk production specifications.
FAQ
Can this material be supplied for converted narrow rolls?
Yes. It can be supplied as jumbo roll, log roll, or spool form for slitting, rewinding, die-cutting, and production-line conversion.
What should be confirmed before custom slitting?
Width, tolerance, core size, roll length, roll outside diameter, edge trimming allowance, and actual machine use should be confirmed before production.
Why is sample roll confirmation recommended?
Sample roll confirmation helps check stable unwinding, slit edge quality, adhesive residue after heating, roll OD fit, telescoping risk, and bonding performance on the actual substrate.
What adhesive system is used?
The standard structure uses polyimide film with silicone pressure-sensitive adhesive, which is suitable for high temperature masking and electrical insulation applications.