Intek are the UK's leading independent distributors of high temperature, chemical resistant RTV silicone sealants and adhesives.

Contact us for friendly sales & technical advice from a family run company for over 25 years.


Threadlocking Adhesives

Food Grade Sealant

Engineering Adhesives

Electronics Assembly

Unit 20,

Atley Business Park,



NE23 1WP

Tel: 01670 734400

International: +44 1670 734400


Technical Support:

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Home Heat resistant silicone sealant Enquire Download Technical Data File

RTV 382 heat resistant sealant is a non acid RTV silicone adhesive sealant which withstands high temperatures of up to 260 C. It will bond and seal most engineering materials including glass, metals, rigid plastics and silicone rubber. RTV 382 heat resistant sealant benefits from neutral curing system. One of our most specified industrial sealants RTV 382 has a NATO stock code NSN 6850-99-519-6905 it also meets UL 94 HB Flame Retardancy


• Heat resistant RTV silicone sealant to 260 C ( 315 C Intermittent )

• Weatherproofing and insulating cable connectors & high voltage equipment

• Oil, chemical and heat resistant sealant / gasket maker

• Sealant for bonding vibration prone machines and appliances

• Heat proof bonding or sealing applications e.g. metal to glass

Uncured Properties

Cured Properties


Translucent / Clear

Specific Gravity:




Hardness Shore A:


Cure Time:

24 hours per 3mm

Tensile Strength:

19 kgf/cm2 ( 1.9 Mpa )

Tack Free:

30 minutes

Dielectric Strength:

20 kV/mm

Shelf Life:

6 months in dry conditions @ 20C

Temperature Range:

-55 to +260C

Mail: enquiry - AG 300

01670 734400

Heat Resistant Sealant - RTV 382 Clear