Basic Info
Model NO.: 685
Material: Silicone Rubber
Form: Liquid Rubber
Thermal Conductivity (W/M.K): 0.6-2.0
Transport Package: Drum
Origin: Guangdong, China
Raw Material: Liquid Silicone Rubber
Appearance: Liquid
Hardness (Shore a): 40-70
Trademark: TBL
Specification: 1: 1
Product Description
Description
685 series are a double components liquid silicone sealant, with heat conduction and inflaming retarding. It has low viscosity and good flowing properties, cured at room temperature or by heating, also with good thermostability and anti-aging properties, keep good elastic and insulating performance, waterproof and anti-aging properties within a wide temperature range after curing.
Application
This series are widely used for sealing and protection of common electronic components, power modules and circuit boards, vehicle HTD power module, ignition system power module and internet transformers etc.
Technical Data
| Indicators | Specification | ||
| Before Curing | Specific Gravity (g/cm3, 25oC) | A: 1.3-2.0 B: 1.3-2.0 | |
| Viscosity (mpa.s, 25oC) | A: 1000-10000 B: 1000-10000 | ||
| Mixing Ratio (A:B) | 1:1 | ||
| Viscosity after mixing (mpa.s, 25oC) | 1000-10000 | ||
| Operating Time (min, 25oC) | 30-120 | ||
| Curing Time (h, 25oC) | 24 | ||
| Curing Time (min, 80oC) | 15-60 | ||
| After Curing | Mechanical Properties | Durometer (Shore A) | 40-70 |
| Tensile Strength (Mpa) | ≥1.0 | ||
| Elongation (%) | ≥65 | ||
| Electrical Properties | Dielectric Strength (KV/mm) | ≥20 | |
| Dielectric Constant (50Hz) | 3.0 | ||
| Volume Resistivity (Ω.cm) | ≥1x1014 | ||
| Water Absorption (%) | ≤0.1 | ||
| Working Temperature (oC) | -50---250 | ||
| Thermal Conductivity (w/m.k) | 0.6---2.0 | ||
| Flame Retardant Rating | UL94-V1 / UL94-V0 | ||
How to Use it
Weighing: mix A & B components separately, weigh A & B components as per weight ratio 1:1 exactly.
Mixing: put B component to A component, mix evenly, it can be finished by hand or equipment.
Defoaming: defoamed in the vacuum condition.
Potting: clean the surface that needed to be coated, put the rubber into the mould.
Curing: curing at room temperature or by heating. In room temperature, the viscosity of rubber will increased along with time extension, it would double with 40-60 minutes.
Our Service
1. Sample: Sample is free for our valuable customer.
2. OEM: OEM service is provided for our valuable customer.
3. Welcome to visit our factory anytime.
4. Welcome to be our brand "TBL" distributor in your local place.
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