MDSI 7339 Black/White silicone adhesive

Excellent chemical resistance, low odor and good adhesion
Low volatile content no more than 500ppm, closed environment no corrosion no fog
Resistance to moisture, dirt and other atmospheric components
Reduces mechanical stress and tension caused by mechanical, thermal shock and vibration
Excellent outdoor aging, service life of up to 20-30 years
Stable mechanical and electrical properties between -60 and 300℃

Product description

MDSI N 7339 Dealcoholized silicone bonding sealant is a neutral silicone sealing material that absorbs moisture in the air to cure at room temperature. It is non-corrosive to materials, and has good bonding and sealing performance for most plastic and metal materials, protecting electronic products in a stable state under harsh conditions.

Data Sheet

Test items	Test standard	Units	N 7339	N 7339	7339
Order code	—	—	1KSI3180	1KSI3200	1KSI3160
Appearance	Visual	—	Grey thixotropic paste	White	Gray
Viscosity	GB/T 2794-2022	25℃, mPa·s	Paste	Paste	Paste
Density	GB/T 13354-1992	25℃, g/cm3	1.45±0.05	1.45±0.05	1.35±0.05
Tack-free Time	GB/T 13477.5-2002	25℃, 55%RH,min	≤20	≤20	≤20
Extrusion rate	25℃	g/15s	30-50	35-45	100-150
Curing depth	25℃	mm	≥2.0	≥2.0	≥2.0
Hardness	GB/T 531.1-2008	Shore A	40±5	45±5	30±5
Thermal conductivity	GB/T 10297-2015	W/m.K	0.35	0.35	0.3
Elongation at break	GB/T 528-2009	%	≥300	≥350	≥500
Tensile strength	GB/T 528-2009	Mpa	≥2.5	≥2.0	≥2.3
Shear strength	GB/T 7124-2008	Mpa, Iron/iron	2.3±0.3	2.3±0.3	2.2±0.3
Compression deformation rate	BG/T7759.1-2015	%	25	25	20
Dielectric strength	GB/T 1695-2005	kV/mm (25 ° C)	>18	>18	>18
Loss factor	GB/T 1693-2007	(1MHz) (25℃)	0.09	0.09	0.09
Dielectric constant	GB/T 1693-2007	(1MHz) (25℃)	2.9	2.9	2.9
Volume Resistance	GB/T 1692-2008	(DC500V) Ω· cm	≥1.0*10¹⁴	≥1.0*10¹⁴	≥1.0*10¹⁴

Application

Household electric iron, microwave oven, induction cooker
Car light fixtures, LED bulb lights, T-tubes
PCB components fixed bonding, LCM border seal
Engineering machinery caulking seal, control box shell CIPG/FIPG

How to use

Operation process

Surface treatment: will be sticky or coated surface finish clean, clean with cleaning agent to remove rust, dust and oil. Can be applied to a variety of materials, such as glass, metal and most commonly used industrial plastics, to achieve a bottomless coating bond. However, on some polymers, the bond may be poor, such as polyethylene, polypropylene and PTFE. It is recommended to use Biko PM1263/ PM1262 primer in advance to obtain good bonding effect.
Sizing: Cut the nozzle to the required size and load it into the glue gun. Squeeze the glue solution onto the cleaned surface for an even distribution. When bonding, the adhesive surface can be closed and fixed. At room temperature and 55% relative humidity, the adhesive exposed to the air will complete the “crust” in about 10 minutes. Therefore, all processing must be completed before crusting.
Curing: After finishing the crust, curing will continue from the inside out. The curing depth within 24 hours (room temperature 25 ° C, 50% relative humidity) is approximately 4mm. Very deep sections, especially those with difficulty in contact with water vapor in the air, will require longer curing times. The lower the relative humidity will extend the curing time. The painted part is placed in the air and can be put into use after curing at room temperature for 24 hours.
Note: After opening, use it as much as possible once, once not used up, and then use it again, after squeezing out the cured part, continue to use without affecting normal use.
Please consult MDTECH Marketing Department for the use of dispensing equipment.