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Room Temperature Vulcanized PRTV RTV Silicone Coatings For Ceramic Insulators

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China Kayi Industrial Co., Ltd.
Province/State: Jiangsu
Country/Region: China
Tel: 86-755-26927358
Contact Person:
Mr Warren

Room Temperature Vulcanized PRTV RTV Silicone Coatings For Ceramic Insulators

Brand Name : Changgong
Model Number : RTV-PRTV-SRTV
Certification : Type test reports, SGS test report,5000 hour aging test report
Place of Origin : China
MOQ : As per the requirement from the client
Price : 15.00 USD to 25.00 USD per kg
Supply Ability : 20 Tons per month
Packaging Details : Bucket or Cans
Material : Room temperature silion
Solid content : ≥%30
Tack free time : 25 minutes
Specific gravity : 0.92-1.42 g/cm3
Salt fog test : 5000H
Tensile strength : 4.24 N/mm2
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Room Temperature Vulcanized PRTV RTV Silicone Coatings For Ceramic Insulators

Technical Spefications:

No.propertiesTest MethodunitMinimum requirement



1Solid contentDLT627-2012≥%3051
2Solid volumeIEC≥%40/
3Shelf life--Month1212 Months
4Tack free timeMinute4525 Minutes
6Specific gravityDLT627-20120.5g/cm³….2g/cm³0.92-1.42 g/cm3
7Flash pointDLT627-201230°C…………45°c35 °c
8Skin-over time at 23°cDLT627-20129min….40min20 min
9Water replellenceDLT627-2012105°C…..130°C113.8°
10Arc resistanceDLT627-2012180s ≥191s
11Volume resistivityDLT627-20121.2*10¹²6.05*1013
12Application temp rangeDLT627-2012-10°c…….+60°C-50-200°C
13Colour material--greyGREY
14Dielectric constant at 50 HZDLT627-2012≤32.0-2.1
15Dissipation factor at 50 HZDLT627-2012≤0.40.2-0.23
16Contamination flashover resistanceDLT627-2012


U2(un coated)


17Adhesion Ability TestIEEE std 1523PassPASS
18Salt fog testDLT627-2012h1000H5000H
19Tensile strengthDLT627-2012N/mm²34.24 N/mm2
20Tear strengthDLT627-2012N/mm910.2 N/mm
No.SubjectGuaranteed Value
1Solid Content by Weight51
2Solid Content by Volume/
3Density -Uncured0.92
4Density Cured


Question and answers:

1, How long you can guarantee your PRTV coating on ceramic insulators of substation equipments?

Answer : 15 years

2, How long the client will need to wash their equipment after PRTV coating in below mentioned areas?


Polluted AreasEstimated time need to wash again after using our RTV / PRTV products (years)
Cement Factories10-12
Petrochemical Plants12-13
Heavy Polluted Areas12-13
Polluted Areas15

3, If he minimum required thickness of PRTV on ceramic insulators of high voltage equipments in substations is

500 micron (Dry Film Thickness - DFT). To reach to this thickness, how much is your recommended weight for

each square meter?

Answer:1.4 kg/m2

4, What is your estimated time to do the PRTV coating of each bay of substations? ( line bay , transformer bay …)


Each Bay of Substation

Estimated time to do

the execution works (Hours)

How many person you need
63 kV83
132 kV84
230 kV85
400 KV88

5, What is your estimated area of ceramic surface in square meter for below mentioned equipments of high voltage


One Piece.

Each Equipment of Substation




Voltage Transformer


Current Transformer


Surge Arrester


63 kV1.50 kg6.00 kg4.70 kg3.50 kg
132 kV2.40 kg10.80 kg8.50 kg6.00 kg
230 kV5.00 kg22.50 kg17.50 kg12.50 kg
400 KV8.00 kg36.00 kg28.00 kg20.00 kg

6, What is your packing method?

5-10 KGS

Product Tags:

high voltage insulator coating


insulator coating

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