Yellowing resistance flexible ultra clear liquid two-part PU polyurethane adhesive

1) high performace polyurethane adhesive
2) water clear
3) UV resistance
4) non-yellowing
UV and yellowing resistance flexible ultra clear liquid two-part PU polyurethane adhesive

INTRODUCTION
PU245AB is a two-part, water clear, flexible, liquid polyurethane resin; it has best UV and yellowing resistance, anti-bending, anti-aging, and fast dry speed. It is widely used in:
1) LED strips encapsulation
2) PU polyurethane doming
3) Non-yellowing coating
PROPERTIES

PU245A
PU245B
Color
Water clear
Water clear
Viscosity cps/25°C
300~500
300~500
Specific gravity
1.03
1.03
APPLICATION CONDITIONS
Mix Ration (weight)
PU245A:PU245B=1:1
Pot Life (at 25
°C
)
20~30 min (After Mixing)
Cure
25°C×16~24h or
50°C×1.5h + 60°C&tim es;1h
CURED PROPERTIES
Hardness (Shore D)
55~65
Volume resistivity (ohm-cm)
>10
15
Surface resistivity (ohm)
>10
14
Dielectric constant (KHZ)
4.2±0.1
Bending strength (kg/mm
2
)
>10
Impact strength(kg/mm
2
/cm
2
)
>6