Product Description
Years of experience and industrial knowledge has helped us to trade and export a huge spectrum of Diamond Dotted Paper. Our range is extensively used in the mechanical and insulation binding of winding and insulation layers, laminations, straps and conductors. This dotted paper is tack free at room temperature and can also be used in high stressed areas of transformers after curing. Our dotted paper is of high tensile strength and can be used to group. Also, the offered diamond dotted paper can be availed from us at rock bottom rates within committed time frame.
Specification
| Type | Insulation Paper |
| Material | Insulation Paper |
| Application | Transformer |
| Color | Brown |
| Pattern | Diamond Dotted Pattern |
| Thickness | 0.08/0.125/0.18/0.25 |
Exceptional Thermal and Electrical PerformanceDiamond Dotted Paper excels under elevated temperatures, continuously withstanding up to 105C and short-term surges to 120C (Class A). With a breakdown voltage above 8 kV/mm, this paper ensures safe and effective insulation for high-performance equipment such as transformers and generators, safeguarding critical electrical components.
Reliable, Long-Lasting Adhesive StrengthWith its single-side coating of electrical-grade thermosetting epoxy resin, this paper provides an excellent adhesive bond even at high temperatures. Proper bonding strengthens layer insulation, particularly in oil-immersed transformers, supporting durability and sustained operational reliability for up to 12 months under recommended storage.
Versatile Formats and Simple CustomizationDiamond Dotted Paper comes in sheets or rolls, with standard dimensions of 1200 mm x 1000 mm and weights ranging from 70 gsm to 130 gsm. Custom sizes are also available, making it easy to match project demands. Its uniform diamond coating ensures consistent electrical and mechanical performance throughout installation.
FAQs of Diamond Dotted Paper:
Q: How is Diamond Dotted Paper used in electrical transformers and motors?
A: Diamond Dotted Paper is primarily employed as layer and interlayer insulation in oil-immersed distribution and power transformers, as well as in motors and generators. The diamond-pattern epoxy resin coating enhances adhesion between layers, reducing the risk of displacement and maintaining electrical integrity during operation.
Q: What benefits does the diamond dot epoxy resin coating provide?
A: The diamond-pattern single-side epoxy resin coating delivers strong adhesive properties, particularly at high temperatures. This targeted coating method ensures improved mechanical strength, reliable electrical insulation, and minimized movement of layers within windings under thermal and operational stress.
Q: When should Diamond Dotted Paper be replaced in insulating applications?
A: Replacement frequency depends on operational stress, but the papers recommended shelf life is up to 12 months under proper storage. It should be replaced if significant physical or chemical degradation, loss of adhesion, or electrical failure is detected during maintenance inspections.
Q: Where should Diamond Dotted Paper be stored before use?
A: For optimal shelf life, store the paper in a cool, dry environment away from direct sunlight and excess moisture. The product is delivered in moisture-proof sealed rolls or reams to preserve its properties until application.
Q: What is the typical process of applying Diamond Dotted Paper during transformer manufacturing?
A: During manufacture, sheets or rolls are cut to specified sizes, then wrapped or layered as insulation between transformer windings. The epoxy dots melt slightly during assembly heat treatment, bonding layers together to create a stable and robust insulating structure.
Q: How does Diamond Dotted Paper resist chemical exposure and moisture?
A: The chemical wood pulp base and thermosetting epoxy resin coating offer good resistance to oils, coolants, and moisture. This resilience helps maintain electrical properties and physical strength in transformer oils and other harsh operating environments.
Q: What customized options are available for Diamond Dotted Paper?
A: Customers can request custom sizes, thicknesses (0.08 mm to 0.25 mm), widths (up to 1200 mm), and weights (70 gsm to 130 gsm) to fit specific insulation requirements in electrical machinery, based on project designs.