DOMADIA™ Electrical Insulating Kraft Paper
DOMADIA™ Electrical Insulating Kraft Paper
Premium Electrical Insulation with Unmatched Durability
DOMADIA™ Electrical Insulating Kraft Paper is a high-quality, cellulose-based insulation solution tailored for demanding electrical and thermal applications. Known for its superior dielectric strength and mechanical integrity, this kraft paper offers reliable performance in a wide range of electrical insulation environments, from transformers to capacitors and motor windings.
About the Product
DOMADIA™ Electrical Insulating Kraft Paper is manufactured from high-grade, unbleached pure cellulose pulp. This insulation-grade kraft paper is designed for optimal thermal endurance and mechanical strength, making it ideal for Class A (105°C) insulation systems.
Produced using a clean and controlled process, it delivers consistent thickness, smooth surface finish, and excellent oil absorption properties—critical for impregnated insulation systems like oil-filled transformers and reactors.
Key Features & Advantages
- High Dielectric Strength
Offers excellent electrical insulation even under high voltage and thermal stress.
- Excellent Thermal Stability
Operates efficiently in Class A insulation environments (up to 105°C), ensuring longevity.
- Superior Mechanical Strength
Withstands mechanical stress during transformer winding or component wrapping.
- Oil-Absorbent & Impregnable
Outstanding compatibility with transformer oil for wet and dry-type transformer systems.
- Environmentally Friendly
Made from 100% pure cellulose fibers without harmful chemical additives.
- Dimensional Consistency
Uniform thickness and texture for precision insulation applications.
Technical Properties of DOMADIA™ Kraft Paper
| Property | Unit | Typical Value / Range |
| Dielectric Strength (in oil) | kV/mm | ≥ 8 |
| Basis Weight (Grammage) | g/m² | 50 – 150 |
| Thickness | µm | 75 – 250 |
| Tensile Strength (MD / CD) | N/15 mm | ≥ 60 / ≥ 30 |
| Moisture Content | % | 6 – 8 |
| pH (Cold Extract) | — | 6.5 – 8.0 |
| Oil Absorption | % by weight | 25 – 40 |
| Ash Content | % | ≤ 0.6 |
| Elongation at Break (MD / CD) | % | 1.5 – 3.0 / 2.0 – 4.0 |
| Thermal Classification | — | Class A (105°C) |
Thickness
Available thickness: 1 to 20 mil
Applications
- Power & Distribution Transformers
Used as insulation between windings and layers due to its dielectric properties and oil-absorption capacity.
- Capacitors & Coils
Acts as an interlayer insulator for wound coils, enhancing device performance.
- Electric Motors
Provides slot and phase insulation in low-voltage motor applications.
- Reactors & Chokes
Essential in high-current reactor insulation where thermal and electrical reliability is vital.
- Switchgear & Control Panels
Serves as insulation backing for current-carrying conductors and busbars.
Why Choose DOMADIA™?
At DOMADIA™, we pride ourselves on delivering precision-crafted electrical insulation materials that meet global quality standards. Our kraft paper undergoes strict quality control and is backed by decades of industry expertise, ensuring consistent and dependable performance across all applications. We support our customers with custom sizes, technical data, and responsive support to meet your unique needs.
Connect with Us
Whether you’re designing transformers, retrofitting motors, or specifying insulation for complex electrical systems, DOMADIA™ Kraft Paper provides the reliability and performance your applications demand. Our team is always ready to help you with technical insights and supply chain flexibility to match your production timelines.
Ready to Buy?
Reach out today for technical data sheets, quotations, or custom orders.
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Frequently Asked Questions
- What is the operating temperature range of DOMADIA™ Kraft Paper?
It is suitable for Class A insulation systems and operates effectively up to 105°C.
- Is the kraft paper suitable for oil-filled transformer applications?
Yes, it is highly absorbent and fully compatible with transformer oils.
- Can the paper be customized in size and thickness?
Absolutely. We offer custom dimensions to meet specific project requirements.
- Is the product RoHS or REACH compliant?
Yes, DOMADIA™ Kraft Paper is free of harmful substances and fully compliant with industry environmental standards.
- What is the shelf life of insulating kraft paper?
Stored in a cool, dry environment, it maintains optimal performance for up to 5 years.
- Does it come in roll or sheet form?
We provide both roll and sheet formats depending on customer preference.
- Is it flame retardant?
It is not inherently flame retardant but offers excellent thermal resistance for Class A applications.
- Can it be layered with other insulation materials?
Yes, it is often used in conjunction with pressboard, film, or varnish for multi-layer insulation systems.
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