IOTA CORPORATION LTD
Product Description
Addition type liquid silicone rubber IOTA-3405A/B is a two-component platinum catalyzed transparent silicone elastomer. After mixing the A/B components, it solidifies to form a soft material with buffering properties and certain adhesive strength. This liquid silicone rubber has unique physical properties and is suitable for high-precision electronic encapsulation and filling. Composed of platinum catalyzed polydimethylsiloxane, the curing temperature range is from room temperature to 200 ℃, and no by-products are produced.
Applications
Resist moisture, dirt, and other atmospheric components, reduce mechanical stress and tension caused by mechanical, thermal shock, and vibration, at -50-200 ℃ stable mechanical and electrical performance, self-healing. It is an ideal choice for protecting sensitive electronic components in extreme environments.
Solvent free two-component system.
Low viscosity before curing, easy to process.
Excellent softness and stress free.
Extremely low oil permeability and shrinkage after curing.
Typical Characteristics
|
Properties |
Value |
|
Uncured |
|
|
Component A |
|
|
Appearance |
Colorless translucent fluid |
|
Density 25°C,10S-1 |
0.99-1.03 g/cm3 |
|
Viscosity at 25℃, stirred |
40000-60000(Customizable) |
|
Component B |
|
|
Appearance |
Colorless translucent fluid |
|
Density 25°C,10S-1 |
0.99-1.03 g/cm3 |
|
Viscosity at 25℃, stirred |
40000-60000(Customizable) |
|
Product data (A+B mixed) |
|
|
Mixing ratio (weight) |
1:1 |
|
Viscosity at 25℃, stirred |
40000-60000(Customizable) |
|
Curing time |
See the curing condition |
|
Product data (after cured) |
|
|
Flame retardant grade |
UL94V-0 |
|
Viscosity at 25℃, stirred |
40000-60000 |
|
Appearance |
Colorless semi transparent gel with hardened appearance |
|
PH value |
6-8 |
|
Hardness (Shore A) |
3-8 |
|
Breakdown resistivity (MV/m) |
≥ 20 |
|
Volume resistivity(Ω. cm) |
1.0 * 1014 |
|
Dielectric constant (1MHz) |
3.2 |
|
Electric strength (KV/mm) |
18 |
|
Temperature range for use(℃) |
-60~200 |
|
Shrinkage rate(%) |
＜ 1.5 |
|
Water absorption rate(Long term soaking,%) |
<1.0 |
Curing condition
1.The operation time after mixing, min (25 ℃)>3H min, varies according to room temperature changes (adjustable)
2.Hardening conditions, ℃/hr less than 25 ℃/24h or 100 ℃/10 mins (adjustable)
Note:
1. The operation time is tested based on a glue dosage of 100g. All data on the curing state were measured after 7 days of adhesive curing at 25 ℃ and 55% RH.
2.Cleaning: (before curing) n-hexane, benzene, toluene, xylene
Cleaning: (after curing) n-hexane, benzene, toluene, xylene
Operation Process
1. Weigh components A and B in a 1:1 ratio, mix them evenly, let them stand for 10 minutes, and then inject them into the module. It is best to slowly inject along one side to reduce the generation of bubbles.
2. Let the sealed components stand still and allow them to bubble out on their own. After the bubbles have basically disappeared, they can be heated and cured (at 120 ℃, it takes about 20-40 minutes, depending on the thickness of the adhesive layer). They can also be cured directly at room temperature, which takes about 6-10 hours.
Precautions
1. Vacuum defoaming of A/B components after mixing can improve product performance.
2. Components A and B should be sealed and stored after use.
3. Low temperature can cause slow curing speed, it is recommended to heat and cure.
4. It is difficult to solidify when in contact with sulfur-containing, amine, and tin materials.
Packaging specifications
Component A: 25KG plastic drum/iron drum; Component B: 25KG plastic drum/iron drum
Component A: 200KG iron drum; Component B: 200KG iron drum
Storage and transportation
Storage period of 1 year (25 ℃); This product should be stored in a dark, heat-resistant, and sealed manner. It is a non hazardous material and should be transported and stored as a general chemical.
