RTV 160 Grey Encapsulants Potting Silicone Compound for LED /
Circuits Electronic Potting Silicone
Description
Silicone compound is supplied as a two-component addition cure
system. It consists of Part A and Part B. When the components are
thoroughly mixed in a 1:1 ratio by weight or volume, the liquid
mixture cures to a flexible elastomer, which is suited for
electrical/electronic potting and encapsulating applications.
Typical properties
| Item No.: | RTV170A/B |
| Appearance(A/B) | Black liquid |
| Viscosity(A/B,Mpa.s) | 2800±2000 |
| Mix ratio(A/B) | 1:1 |
| Pot life after curing(25℃,min) | 15~20 |
| Full Curing time (hrs) | 24 |
| Thermal conductivity(W/m·K)(A/B) | 0.27~0.32 |
| Durometer Hardness(JIS A0) | 47 |
| Volume resistivity(Ω·cm) | 7X1014 |
| Dielectric breakdown voltage(KV/mm) | ≥20 |
| Flammability classification | UL-94 V-0 |
| Shrinkage % | 0.01 |
Features
1. Two-component, room temperature curing, under -60 to 200℃( If in
lasting operation).
2. Deeply curing, good adhesive to module and electrical components
3. Good weather ability , insulation, waterproof, damp proofing
4. encapsulation for Electronic components, power module, and LED
outdoor displayer
Using instruction
1. Mix component A and component B thoroughly at a 10:1 ratio (by
weight or volume)
2. Vacuum de-airing after mixing, then its ready for pouring
3. If bubbles occurs due to much slender crevices, two times
pouring will be a good choice, the second pouring should be done
after the curing of first pouring.
4. The silicone will be cured completely after 24 hours, if the
depth of the parts which need to be encapsulating is over 2cm, the
curing time of bottom silicone will be a bit longer.
Packing
20kg/plastic drum
Precautions
1. Catalyst component B should be tightly closed for storage; after
open the bottle, the rest should be sealed immediately, avoid from
air contact which might cause color change, and its original curing
properties.
2. Different mix ratio will change the pot life or curing time,
increase the volume of component B will shorten the curing time,
decrease the volume of component B can prolong the curing time.
3. The curing time varies due to different temperature, the higher
temperature, it cures faster. Conversely, it cures slower when
under a low temperature or humidity. Customer can adjust the volume
according to actual condition or needs.
4. Do not heating up or fully seal up the part during its curing
process. (>60℃)
5. Electrical property and adhesive property test should be done 72
hours after curing.
Storage
1. It should be stored in a cool, dry and ventilated place. Shelf
life is 12 months.
2. This product is nontoxic, meets the standard of ROHS, no
flammable or explosive ingredients, no special requirement for
transportation.
