+44 1670 734400

Heat Resistant Sealants with Chemical Resistant Properties

All of our RTV silicone sealants and adhesives have very good resistance to chemicals, high temperature, acid, alkaline and most industrial fluids. Intermittent exposure to fuels is fine but not resistant for continuous contact.

Common Chemical examples are Formaldehyde, Chlorine, Oil, Bio Diesel, Hydrogen Peroxide, caustic and Industrial Solvents.

  Operating Temperature Viscosity Tensile Strength MPa Cure Time Colour Chemical Resistance Temperature Resistance Weathering UV Resistance Electrical Properties Adhesive Strength
RTV 382 -55 + 260 C Non Slump Paste 1.9 3 mm per 24 hours Translucent Clear Good Good Good Recommended Good
AG 300 -55 + 300 C Non Slump Paste 2.9 3 mm per 8 hours Metallic Silver Recommended Excellent Recommended Good Recommended
XTS 320 -55 + 320 Non Slump Paste 1.9 3 mm per 24 hours Orange / Brown Excellent Recommended Excellent Excellent Excellent
Flowsil -50 + 200 Self Leveling Liquid 1.2 3 mm per 24 hours Translucent Clear Fair Good Fair Recommended Limited

Adhesion Performance

  Aluminium / Steel Stainless Steel Copper Glass Filled Nylon Polypropylene / PE Rigid PVC Silicone Rubber Chloroprene Glass Concrete Ceramic Carbon Fibre Powder Coatings Woods
AG 300 Excellent Excellent Good Excellent Not Recommended Good Excellent Good Excellent Good Good Excellent Excellent
RTV 382 Excellent Good Excellent Good Not Recommended Good Excellent Fair Excellent Good Good Excellent Good
XTS 320 Excellent Good Excellent Excellent Not Recommended Excellent Excellent Good Excellent Excellent Excellent Excellent Good

How much will I get from a 310 ml cartridge?

6 mm x 3 mm bead = 18 Metres approx

6 mm x 6 mm bead = 9 Metres approx

Will heating RTV’s accelerate the cure time?

No,as it will eliminate the required moisture. Note – If speed of cure is important see – AG 300 – Fast curing one part sealant (6-8 hours) RTV 2 – Two hour curing 2 part sealant.

How do I prepare my surface?

Clean and de-grease metals using an industrial solvent like our Metal Cleaner or IPA. Avoid detergents as they can leave a residue Light abrasion will also be helpful prior to cleaning.

Can silicone sealants be over painted?

Sorry no – but our polyurethane’s can.

Are silicones flame retardant?

Yes our silicones will not burn unless a direct flame is applied. Some grades meet UL 94 requirements. If they do burn minimal fumes are given off so toxicity is not a concern.

Adhesion Performance

Adhesion Performance


01670 734400
+44 1670 734400

Intek Adhesives
Unit 20
Atley Business Park,
NE23 1WP