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⚡ Seal the spark, not your style — Insulate with confidence!
MG Chemicals 4226A Clear Insulating Varnish is a high-performance, low-viscosity dielectric coating designed to protect high-voltage electrical components from arcs, moisture, and corrosion. It delivers a durable, glossy finish that adheres to metals, glass, and plastics, meeting UL EIS standards with a dielectric strength of 3000 V/mil. Free from hazardous solvents, it’s the smart, safe choice for professional-grade insulation.













| ASIN | B0BPB6XBMS |
| Best Sellers Rank | #92,382 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,376 in Spray Paint |
| Brand | MG Chemicals |
| Brand Name | MG Chemicals |
| Compatible Material | Metals, Glass, Most common plastics |
| Coverage | Arc, corrosion, and moisture protection |
| Customer Reviews | 4.6 out of 5 stars 157 Reviews |
| Finish Type | Gloss |
| Finish Types | Gloss |
| Included Components | MG Chemicals - 4226A Clear Insulating Varnish, 1L, Can |
| Item Form | Liquid |
| Item Type Name | Electrical Insulator |
| Item Weight | 2 Pounds |
| Liquid Volume | 945 Milliliters |
| Manufacturer | MG Chemicals |
| Manufacturer Part Number | 4226A-1L |
| Manufacturer Warranty Description | [email protected] |
| Material | Polyurethane (PU) |
| Material Type | Polyurethane (PU) |
| Model Number | 4226A-1L |
| Recommended Uses For Product | Exterior, Interior |
| UPC | 779008422687 |
| Unit Count | 1.0 Count |
W**T
Excellent Product
Excellent product. Much better looking than the red corona dope. Easy to apply, and stopped a high voltage arc as advertised.
D**L
Works on stator windings for Denso alternator
Worked great on my Denso alternator stator windings. Alternator was for a 2006 Toyota Camry 2.4L
S**E
Say what?
Good product, seals well. Great for huffing too
G**Y
clear insulating varnish
i use this for sealing coils on guitar pickups. it does a good job. 2 oz doesn't seem like much, but its enough to test the product to see if i want to spend 70 on the big bottle.
B**D
Quality coating.
Wish brush was mounted in lid. Lid has a pesky child safe feature you gotta really push to open...I jb them back to normal. Coating is more for coils than PCB. Might make PCB a little too hot.
J**D
Works as advertised
Used for locking trimmers, adjustment, and mounting screws does a good job and holds well when cured.
T**M
Used on a electrially leaky distributor cap.
NIce stuff. I used this on a 5 cylinder, homemade, fiber distributor cap on a one-off handmade 5 cylinder radial outboard motor that hadn't run in over 30 years. It appeared there was some high voltage leakage from the center electrode to the 5 electrodes to the spark plugs so I sanded the carbon traces and coated the entire cap with this stuff. It worked.
S**A
Messy.
Messy. Hardened coating
L**O
Consigliato
Questo isolante è l'ideale per mettere al sicuro collegamenti elettrici, impossibili da isolare, una volta asciugato crea come un tappo solido, usato per isolare i contatti di una vecchia bobina di una vespa, consigliato.
H**I
good product
easy to apply and helps with high voltage. Use ventilation when applying.
M**S
Electric wheel
Came on time and done the job
L**A
MG Chemicals 4226A Vernice isolante trasparente, flacone liquido da 55 ml
Davvero un' ottimo prodotto, stesura perfetta e ottima l'essiccazione all'aria. Un peccato che non sono disponibili anche quantità da 500 ml e da 1 Litro.
F**R
Kann nur sagen alles Top!
Kann nur sagen alles Top!
Trustpilot
1 week ago
5 days ago