Hard Cured Crystal UV Resin for Doming on Pendent

                     MTB-669 Hard Colorless& Colorfull  UV Resin Glue  Various Colors for your Choice. Technical Data Sheet MTB - 669 Hard UV glue, time gem, high transparent UV - DIY crystal drops of glue, Adopt Japan's ultraviolet hardening resin raw materials   Instruction l  A one-component, acrylic ester UV cured adhesive. l  Has the color of crystal and accept OEM&ODM according to your colors. l  Adopt Japan's ultraviolet hardening resin raw materials  l  Has excellent adhesion for glass, plastic, metal and so on . l  Good flexibility , corrosion resistance and bending character . l  Fast curing time (surface) . l  Can be moisture, high temperature, high humidity, UV radiation and insulation resistance. l  Typical application for DIY doming and coating on jewelry accessories of  bracelet, pendant, necklace, earrings, ring, gemstone. l  Good for potting on glass and circuit board.   Features l  Has excellent adhesion for glass, plastic, metal and so on l  Fast surface curing (drying)speed, l  Can rapidly achieve surface debonding effect in high power under UV light l  With flexible formula, good effect to the soft circuit boards and soft plastic l  With low viscosity, good permeability, and can be mechanical spraying l  Excellent moisture, high temperature, high humidity and UV radiation resistance, can have the stable performance even if in harsh environment l  Can choose the fluorescence effect formula, after curing with low power light rubber will appear blue by an ultraviolet lamp in a dark room   Physical Performance

Item	MTB-669
Appearance	Clear &Various for your choice
Viscosity (@ 25 ℃, in rotation viscometer)	30000-32000 mpa. S
Shelf Life	12M

  Curing Condition (The following data was measured under Philips 36 w UV lamp irradiation:)

Curing Time(Surface drying	60s
Deep Cure Time(with glue thickness of 1mm)	20s
Cured Completely  Energy	800 mj/cm²

Curing Methods.   1)UV Lamps 2)UV Flashlights  Hardness (The following data is measured in the infinite source of mercury lamp accumulated energy 800 mj/cm squared after curing)

Hardness(Shore D)

75

  Electrical Properties   Dielectric constant& Dielectric Loss

Item	Dielectric constant /Dielectric Loss
@ 10 kHz	4.4/0.02
@ 1 MHz	4.1/0.03
@ 10 MHz	4.0/0.04

 

Item	Figure
Volume Resistivity (Ω·cm)	8.0 x 1015
Surface Resistivity(Ω·m)	5.9 x 1015
Dielectric Strength (kV/mm)	20

  Appliaction Show   Packaging & Shipping   Storage conditions l  Please store in a cool, dark place.   l  After open the bottle caps, please cover cap again.   l  The rest glue(not used ) can not pour back into the original packaging bottle.   l  The best storage temperature is in 8-28 ℃, too high or too low will affect the adhesive solution performance. Our Services   Notes
The above data is measured in the laboratory technical personnel of Shenzhen Meitaibang chemical Co.,Ltd. It has the certain reference value to our customers, but due to the use method and conditions of each user is not the same, recommend that users according to their own situation to find the best process and method .Have any questions please contact Shenzhen Meitaibang chemical Co., Ltd for further technical support and services at 86-755-84828977.