Kafuter-5203 Heat Sink Thermal Conductivity Silicon Sealant

Specifications

thermal conductivity silicon sealant
1.white thixotropic elastomer
2.one-part,room cure
3.good in cold and hot tolerance
80g

       Kafuter-5203 Heat Sink Thermal Conductivity Silicon Sealant      

                 (Seal in LED lights, CPU, Radiator)

 

FEATURES

K-5203 is a reinforced thermally conductive silicone elastomer with great adhesion, insulation and dissipation.

(1) one part, room cure, white thixotropic elastomer.

(2) Excellent in cold and high alternating resistance (-60°c~ 280°c).

(3) No peeling and good disassemble after long time usage.

(4)The elastomer with high bonding strength , the shear strength is 30kg/cm³

 

 

APPLICATION

 

fill, bond, and seal in electronics

1. the gap between CPU and radiators

2. the gap between thyristor control modules and radiator

3. the filling of high-power electronics modules and radiators,etc.

 

TYPICAL PROPERTIES

 

Cured		Property Name	K-5203
		Appearance	white
		Viscosity (cp)	thixotropic elastomer
		Density(g/cm3)	2.0~2.5
		Initial Curing Time(25°c, min)	≤30
Uncured	Mechanical Properties	Tensile Strength (Mpa)	≥2.5
		Elongation At Break (%)	≥100
		Shear Strength (Mpa)	≥1.5
		Hardness(shore A)	50~65
		Working Temp (°c)	-60~280
	Electrical Properties	Dielectric Strength(kv/mm)	≥18
		Permittivity (@60Hz)	2.8
		Volume Resistivity (Ω.cm)	1×1015
	Thermal Conductivity(w/m.k)		1.2

 

 

HOW TO USE

 

Preparation

Clean the surfaces by removing the rust, ash, and oil, etc.

 

Application

Pierce the opening with the tip of the cap. Fix the nozzle, and coat the clean surface evenly with the adhesives, then bond the two surfaces.

 

Cure Condition

 

 The elastomer get cure with the depth of 2~4mm in 24 hours (at room temperature, 55% moisture). if the bonded parts is too deep (especially the parts not easy to contact with air) or the temperature is too low, the full cure time will be extend.

Advise users prepare enough time to let elastomer get full cure in order to keep the properties stably. 

 

ATTENTION

1. After the application, screw its nozzle tightly and store in dry and cool place for next time using.

2. There may be some cured gel around the opening when you use it again, just remove the cured, and use the uncured.

 

PACKAGING  

 45g/ tube 

 

 

STORAGE

Store in cool and dry place, the shelf life is 12 months (≤25°c)