Molykote 4 Electrical Insulating Compound With Inert Silica Filler
Product Properties
Molykote 4 is an electrical insulating compound with inert silica filler in polydimethyl silicone fluids, appearing as a white translucent grease (NLGI Grade 2). Key features include high dielectric strength (460 V/mil), stability from -40°C to 200°C, low volatility, and moisture resistance, complying with SAE AS 8660 and FDA 21 CFR 175.300 standards.
| Standard |
Test Property |
Unit |
Result |
| CTM 0176 |
Color |
- |
White; translucent |
| CTM 0191 |
NLGI consistency number |
- |
2 |
| - |
Penetration unworked |
mm/10 |
220 |
| - |
Penetration worked 60, max |
mm/10 |
310 |
| CTM 0033A |
Evaporation (30h/200°C) |
% max |
2.0 |
| - |
Service temperature range |
°C / °F |
-40 to 200 / -40 to 392 |
| CTM 0022 |
Density at 25°C |
g/ml |
1.0 |
Electrical Properties
| Standard |
Test Property |
Unit |
Result |
| CTM 0114 |
Dielectric strength (1.27mm gap) |
V/mil |
460 |
| CTM 0112 |
Dielectric constant @100 Hz |
- |
2.98 |
| CTM 0112 |
Dissipation factor @100 Hz |
- |
<0.0001 |
| CTM 0249 |
Volume resistivity @23°C |
Ohm*cm |
1.1×10¹⁵ |
| CTM 0171 |
Arc resistance |
seconds |
135 |
Product Introduction
Engineered for electrical insulation and sealing with lubrication capabilities, Molykote® 4 utilizes a silica-enhanced formula to deliver exceptional dielectric properties (dielectric constant 2.98@100Hz) and volume resistivity (1.1×10¹⁵ Ω*cm). Certified to NSF 51/61 for food contact, it resists water/methanol/mineral oil but disperses in xylene/mineral spirits for spray/dip applications.
Enhanced Properties
Beyond insulation, Molykote 4 exhibits ultra-low dissipation factor (<0.0001@100Hz) and 135-second arc resistance. Its chemical stability withstands dilute acids/alkalis/oils, while thermal oxidation stability limits evaporation to ≤2.0% at 200°C (30hrs). Note: It degrades silicone rubber and is incompatible with liquid oxygen.
Application Scenarios
Widely used for moisture-proof sealing in aviation/automotive ignition systems, spark plugs, and cable connectors (e.g., Delphi high-voltage connectors). As an assembly lubricant, it suits metal-plastic/rubber components (e.g., door seals, O-rings). Industry-proven cases include Tesla battery terminal anti-corrosion and marine electrical box waterproofing (Source: Molykote® official application database).
FAQ
1. How can I get the price?
- We usually quote within 24 hours after we get your inquiry (Except weekend and holidays).
- If you are very urgent to get the price, please email us or contact us in other ways so that we can offer you a quote.
2. What is your lead time?
- It depends on the order quantity and the season you place the order.
- Usually we can ship within 7-15 days for small quantity, and about 30 days for large quantity.
3. What is your payment term?
- T/T, Western Union, MoneyGram, and Paypal. This is negotiable.
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- It could be shipped by sea, by air or by express (EMS, UPS, DHL, TNT, FEDEX and ect). Please confirm with us before placing orders.
5. How do you make our business long-term and good relationship?
- 1. We keep good quality and competitive price to ensure our customers benefit;
- 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
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