IOTA 4808 Silicone sealant two-component room temperature vulcanized liquid silicone rubber CAS NO.132236-18-1

IOTA 4808 Silicone Electronic Potting Sealant

 

Features:

1.UL,CE certified 

2.Good flowability as supplied ,good self-debubbling performance 

3.Excellent resistance to temperature extremes

4.Excellent electrical insulation performance and excellent arc ,corona and shock resistance

5.Excellent resistance to water ,ozone and weathering

6.Excellent adhesion to PPO,PET,PVDF and other materials

7.Non-corrosive to copper, aluminium, tin ,silver and many other materials

8.V-1 class fire resistance performance

9.Excellent thermal conductivity  

 

COLOURS

IOTA 4808 part A is available in white or black fluid, and part B in clear or shallow yellow liquid. It is white or black fluid after mixing.

 

PACKAGING

IOTA 4808 is available in kits: Part A in plastic pails (12kg), part B in plastic pails (2kg); or Part A in plastic pails (3kg), part B in plastic cartridges (300ml, 0.5kg).

 

Typical properties:

These values are not intended for use in preparing specifications.

*GB: Chinese National Standard

 ASTM: American Society for Testing and Materials

 ISO: International Standardization Organization

 The“GB” testing method is equivalent or partly equivalent to that in the “()”

 

STORAGE AND SHELF LIFE

IOTA 4808 should be stored in original unopened containers over temperature from 4℃to 27℃ and be kept away from rain or direct sunshine.

IOTA 4808 has a shelf life of 12 months from the date of manufacture.

IOTA 4808 is non-hazardous for transportation.

 

HOW TO USE

Mix part A base to Part B curing agent at a ratio of 6:1 by weight or 4:1 by volume, and then pot the mixture into the parts of substrates where needed, place at room temperature for initial curing for about 2～4 hours before conducting the next procedure. If precipitation occurs in Part A, just stir it well before use, and this does not affect the performance of the sealant.

When using automatic dispensing machine, set at a ratio of 6:1 by weight or 4:1 by volume of part A to Part B for a test first and then put into use.

 

NOTES

Screw tight the cover of Part B immediately after use to avoid the exposure to atmospheric moisture

Part A base and part B curing agent should be fully mixed to ensure the homogenity of the sealant, or it affects the performance of the sealant.

Part A and Part B should be kept separately and get mixed on site, and be used within a short time after mixing.

For common low-voltage electrical potting, de-bubbling is not needed, but vacuum de-bubbling for 3～5 minutes is required for high voltage electrical potting.