Techsil® RTV27844

Category: Silicone Rubber, RTV-2 , Silicone Rubber, RTV-2
Manufacturer: Techsil Limited
Trademark: Techsil®
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: pAhD07_TechsilRTV27844.pdf
PRICE: ​Order Products​ email   sales@su-jiao.com
Wechat: WECHAT
Message
Techsil RTV27844 is a clear liquid which will cure at room temperature to a high strength silicone rubber with the addition of curing agents. RTV27844 is supplied with a curing agent in matched kits which are designed for use at a convenient 10:1 ratio by weight. RTV27844 is a low viscosity, easily pourable liquid. RTV27844 silicone rubber compound has the capability of remaining flexible at low temperatures and have been used for protection of electronic components and assemblies against shock, vibration, moisture, ozone, dust, chemicals, and other environmental hazards by potting or encapsulation of the components and assemblies. The optical clarity of this silicone rubber suggests evaluation for applications such as potting solar cells for maximum light transmission and electronic assemblies where component identification is necessary or desirable.

Key Features and Benefits:
  • Convenient 10:1 mixing ratio for use in automatic dispensing or hand operations
  • Low viscosity allows easy flow in and around complex parts, providing excellent electrical insulation and shock resistance
  • Cure rate can be accelerated by heat
  • Will cure in deep sections or enclosed assemblies without exotherm and with low shrinkage
  • Chemical composition contains no solvents for ease of use on production lines
  • Reversion resistance and hydrolytic stability permit use in high humidity environments at elevated temperatures
  • Clarity permits visual inspection for easy identification and repair of encapsulated parts
  • Retention of elastomeric properties at temperatures up to 204°C (400°F)
General Information
Features
  • Flexibility at low temperatures
  • Low viscosity
  • High strength
  • Insulation
  • Earthquake resistance
  • Good liquidity
  • Definition, high
  • Compliance of Food Exposure
  • Room temperature vulcanization
  • Low shrinkage
  • Hydrolysis stability
Uses
  • Encapsulant
  • Electrical/Electronic Applications
Agency Ratings
  • FDA Food Exposure, Not Rated
Appearance
  • Clear/transparent
Forms
  • Liquid
Processing Method
  • Enclosure
  • potting
PhysicalNominal ValueUnit
Molding Shrinkage - Flow 0.20%
ThermalNominal ValueUnit
CLTE - Flow 2.7E-4cm/cm/°C
Specific Heat 1260J/kg/°C
Thermal Conductivity 0.19W/m/K
Service Temperature -60 - 240°C
OpticalNominal Value
Refractive Index 1.406
Uncured PropertiesNominal ValueUnit
Mix Ratio by Weight (PBW)
    Part A 10
    Part B 1.0
Density 1.02g/cm³
Viscosity 4.0Pa·s
Curing Time
    125°C 0.75hr
    100°C 1.0hr
    65°C 4.0hr
    150°C 15hr
    25°C 1.4E+2 - 1.7E+2hr
Pot Life (25°C)240min
Cured PropertiesNominal ValueUnit
Shore Hardness (Shore A)44
Tensile Strength 6.37MPa
Tensile Elongation at Break 120%
Electric strength (1.90 mm)20kV/mm
Relative Permittivity (1 kHz)2.70
Volume Resistivity 1.8E+15ohms·cm
Dissipation Factor (1 kHz)6.0E-4
Resin Grade Manufacturer Category Trademark
RTP 1385 C TFE 15 RTP Company PPS RTP
RTP ESD 282 RTP Company Nylon 66 RTP
Wellamid® NY1599 BK Wellman Engineering Resins Nylon 66 Wellamid®
UBE Nylon 5034 UC2 UBE Engineering Plastics, S.A. Nylon 66/6 UBE Nylon
Niblend S45 Soredi S.p.a. PC+ABS Niblend