UV light rapidly cures thin-layer Potting Compound

JM9000 is a one-component, ultraviolet light-curable polyurethane acrylate type anti-corrosion adhesive. It possesses excellent chemical resistance, moisture resistance and thermal shock resistance. Mainly used for PCB board industrial control board applications, it has low dielectric constant insulation properties, and can achieve waterproof, dustproof and anti-static functions.

product details

High-trans UV coating

Product Introduction

JM9000 is a low viscosity sprayable UV/wet double curing coating glue for circuit board protection. The product displays fluorescence under ultraviolet light .

product type	Polyurethane acrylate
surface	transparency liquid
Product features	● Low viscosity, 100% solid content ● Single component ● Fast curing, good surface dry ● The shadow area can be cured ● Fluorescence is displayed under ultraviolet light
apply	Electronic components are covered
Typical applications	Line board protection

Hardness (Shaft D)	80	GB/T2411-1980
Adhesion (hundred grams)	5B	GB/T9286-1998
Dielectric constant and loss 1MHz	Constant 3.04 loss 0.012	GB/T1693-2007
Volume resistivity (Ω·cm)	1.8×10	GB/T1410-1989
Dielectric strength (KV/mm)	60
working temperature （℃）	-50-150

Glue properties

Viscosity 200-400

(@25℃, rotational viscometer, cps)

Density (g/cm³) 1.08

Shelf life @ 8-28℃ , 6 months

(from the date of production)

condition of cure

Curing was carried out using ultraviolet light with intensity of 300mW/cm2

Surface desorption time, s 10

^{UV complete curing ≥ 3600mJ/cm2}

Shadows where there is no light

Wet air curing time, h (25℃50%RH) 48

The curing conditions mentioned above are advisory. The curing conditions (time and temperature) may vary depending on the customer’s experience and their application requirements, as well as the customer’s curing equipment and the temperature and humidity of the working environment during the application.

Performance after curing

Solvent resistance and aging performance

surveillance project
isopropanol	Solvent vapor for 1 week	uniformity
glycol	Soak for 7 days	uniformity
Double 85 (85℃,85%RH)	Two weeks	No surface delamination and peeling, OK for 100 gr
Hot and cold shock (-40~80℃)	200h	No surface delamination and peeling, OK for 100 gr
Salt spray resistance test (35℃, saturated barrel temperature 47℃)	168h	The welded corner is free from rust and the surface is smooth