Hot Compressing Melamine Moulding Compound Excellent Electrical
Properties
Hot-compression melamine moulding compound with outstanding
electrical properties, high arc resistance and dielectric strength.
Thermosetting powder for low-voltage electrical insulating parts,
heat-resistant, self-extinguishing. Support OEM & ODM bulk factory
wholesale.
Product Overview
Our Hot Compressing Melamine Moulding Compound with Excellent
Electrical Properties is electrical-grade thermosetting melamine-formaldehyde moulding
powder specially optimized for hot compression molding. Formulated
with modified melamine-formaldehyde resin and high-performance
reinforcing fillers, this material delivers superior dielectric
strength, arc resistance and tracking resistance.
After hot pressing curing, finished parts maintain stable
insulation performance under humid and high-temperature working
conditions. Apart from great electrical features, it also owns good
heat resistance, mechanical strength and self-extinguishing
property. Widely used for manufacturing low-voltage electrical
insulating components, instrument parts and special industrial
molded products. Stable batch-to-batch quality, suitable for
large-volume hot-compression production.
Core Advantages & Main Product Structure
Core Advantages
- Outstanding Comprehensive Electrical Properties: High dielectric strength, great insulation resistance, excellent
arc-resistance and proof-tracking index. Effectively prevent
electric leakage and arc carbonization under operating conditions.
- Stable Performance Under Humid & High-Temperature Environment: Insulation performance will not drop sharply after moisture
absorption; maintains reliable electrical safety for long-term
service.
- Good Mechanical & Thermal Performance: High flexural and impact strength, high heat-distortion
temperature, self-extinguishing UL94-V0 flame retardant grade,
anti-deformation under continuous heat load.
- Reliable Hot-Compression Molding Processability: Stable fluidity for hot compression molding, good mold filling
capacity, low shrinkage rate, reduces bubble and crack defects for
complex-shape electrical parts.
- Chemical & Corrosion Resistance: Resist weak acid, weak alkali and daily chemical erosion; finished
insulating parts keep stable dimension in complex industrial
environments.
Main Product Structure
This electrical-grade melamine moulding compound adopts
cross-linked melamine-formaldehyde resin as matrix, compounded with
special cellulose reinforcing fillers and electrical-performance
optimized functional additives. Uniform fine-powder structure
ensures even heat transfer and full cross-linking curing during hot
compression.
The compact cured molecular structure realizes high-level
insulation, arc-resistance and mechanical toughness simultaneously,
meeting strict requirements of electrical insulating components.
Technical Specifications
| Parameter Item | Standard Specification |
|---|
| Product Name | Hot Compressing Melamine Moulding Compound (Electrical-Grade) |
| Grade | MM-E Electrical Insulation Grade |
| CAS No | 9003-02-1 |
| HS Code | 39092000 |
| Appearance | Uniform fine powder, customizable colors |
| Molding Method | Hot Compression Molding |
| Molding Temperature | 155-170℃ |
| Fluidity | 140-200 mm |
| Flexural Strength | ≥80 MPa |
| Notched Impact Strength | ≥1.8 kJ/m² |
| Heat Distortion Temperature | ≥155℃ |
| Insulation Resistance | ≥10¹¹ Ω |
| Dielectric Strength | ≥9.0 MV/m |
| Proof Tracking Index | ≥600 V |
| Flame Retardant Grade | UL94 V-0 |
| Moulding Shrinkage | 0.60-1.00 % |
| Standard Package | 25 kg composite moisture-proof bag |
| MOQ | 1 Ton |
| Shelf Life | 12 months (sealed dry storage) |
OEM & ODM Customization Service
We provide full-set OEM & ODM customization for electrical-grade
hot-compression melamine moulding compound:
- Formula Tuning for Electrical Performance: Adjust filler and additive proportion to optimize arc resistance,
tracking index and dielectric performance according to customer
electrical component standards.
- Color Customization: Supply white, black and other custom Pantone / physical-sample
matching colors for electrical housing parts.
- Fluidity & Curing Adjustment: Modify powder fluidity and curing speed to adapt customers'
hot-press equipment and mould structure.
- Particle-size Customization: Adjust powder fineness to improve feeding and filling effect for
complex cavity molds.
- Packaging Customization: Custom private-label printed bags with brand logo, product
information and batch marking for bulk wholesale clients.
Small trial batches and full-container bulk orders are acceptable.
Technical data sheet and inspection report are provided for every
customized lot.
Application Range
This electrical-grade hot-compressing melamine moulding compound is
designed for thermoset compression-molded insulating articles:
- Low-Voltage Electrical Insulating Parts: Switches, sockets, lamp holders, terminal blocks, circuit-breaker
housings and arc-quenching components.
- Instrument & Electrical Appliance Components: Insulation structural parts for meters, household electrical
accessories and control housings.
- Anti-Arc Industrial Components: Insulation parts working under humid environment, requiring
arc-resistance and flame-retardant performance.
- Special-function Thermoset Products: Also applicable for partial high-strength mechanical molded parts
demanding heat-resistance and dimensional stability.
Production, Quality Inspection & Packaging
Production Process
Adopt fully-closed automated production workflow: raw material
polymerization, formula compounding with electrical-grade
additives, high-precision grinding and powder screening. Strict
raw-material screening controls impurity content, ensuring
consistent electrical-performance indicators for each production
batch.
Quality Inspection
Every batch undergoes complete lab testing before shipment,
including appearance inspection, fluidity test, mechanical strength
test, heat-distortion test and full electrical-performance
detection (insulation resistance, dielectric strength, tracking
index, arc resistance). Third-party test reports are available upon
request. Strict batch difference control avoids performance
fluctuation for electrical-product manufacturing.
Packaging & Storage
- Standard Packaging: 25 kg paper-plastic composite bags with inner PE moisture-proof
liner; prevent moisture absorption during sea-transport. Custom
printed bags are supported.
- Storage Conditions: Store in cool, dry and ventilated warehouse, keep away from high
temperature, humidity and direct sunlight. Keep bags sealed;
shelf-life 12 months under qualified storage conditions.
FAQ
Q1: What is the main feature of this electrical-grade melamine
moulding compound?
A1: It is hot-compression melamine moulding compound featured with
excellent electrical insulation, high arc-resistance and tracking
resistance. It keeps stable insulation property under
high-temperature and humid conditions, meanwhile with good flame
retardancy and mechanical strength.
Q2: What kinds of products can be manufactured with this material?
A2: Mainly for low-voltage electrical insulating parts such as
switches, sockets, lamp holders, circuit-breaker housings,
instrument insulation components and other anti-arc molded
articles.
Q3: What are the key electrical-performance indicators of this
powder?
A3: Insulation resistance ≥10¹¹ Ω, dielectric strength ≥9.0 MV/m,
proof tracking index ≥600 V, UL94-V0 self-extinguishing flame
retardant grade. All indicators can be fine-tuned by formula
customization.
Q4: What molding conditions are recommended for this
hot-compressing melamine moulding compound?
A4: Suggested mould temperature 155-170℃, adopt hot compression
molding process. Actual parameters need adjustment according to
product thickness and mould structure.
Q5: Will humidity affect the electrical performance of finished
molded parts?
A5: Properly cured finished parts maintain stable insulation
performance under normal humid environment. However, raw powder
must avoid moisture absorption before molding, otherwise it will
cause defects and degrade final electrical indexes.
Q6: Can you adjust the formula to meet special electrical-component
standards?
A6: Yes. We support ODM formula tuning. We can adjust arc
resistance, tracking index and mechanical indicators according to
your product technical requirements. Please provide your target
specification sheet.
Q7: Does this electrical-grade melamine compound support custom
colors?
A7: Yes. Black, white and other custom colors are available. Please
provide Pantone code or physical color sample for color matching.
Q8: What is the MOQ and standard packaging specification?
A8: Minimum order quantity is 1 ton. Standard packing is 25 kg
moisture-proof composite bag. Custom-printed packaging is supported
for bulk orders.
Q9: What test documents can you provide for this electrical-grade
material?
A9: We provide in-house batch inspection reports. Third-party
laboratory test reports can be arranged upon customer's request.
Q10: How should we store this melamine moulding compound powder?
A10: Keep sealed, store in cool, dry and ventilated warehouse.
Avoid high temperature, dampness and sun exposure. Shelf-life
reaches 12 months under proper storage conditions.
Resin Plastic Melamine Moulding Compound Powder Temperature Resistance
