Product Description
| Base | Acetic silicone |
| Density | 1.04 g/cm³ |
| Shore A hardness | 25 |
| Skin formation | 5 min (23°C / 50% RH) |
| Hardening time | 4 mm / 24 h (23 °C / 50% RH) |
| Aiming time | 10 min |
| Elongation at break | 500% (ISO 8339) |
| Tensile strength | 18.5 kg/cm² |
| Compressive strength | 360 kg/cm² |
| Shear strength | 20.5 kg/cm² (1 mm aluminum) |
| Temperature resistance | -60 °C / +330 °C (peaks up to 400 °C for 30 min) |
| Elastic modulus | 5.5 kg/cm² |
| Recovery from distortion | 98% |
| Dielectric strength | 20 kV/mm (ASTM D419) |
| Dielectric constant | 3 to 1 MHz (ASTM D150) |
| Thermal conduction | 315 cal/sec/cm²°C/cm |
| Working temperature | +5 °C / +40 °C |
| Narrowing | None (DIN 52451) |
| UV resistance | Excellent |
| Chemical resistance | Oils, greases, fuels, acids, water, steam and light solvents |
| Electrical resistance | 2×10¹⁵ Ohm cm (ASTM D257) |
| Conservation | 12 months between +5°C and +25°C |
| Packaging | 310 ml cartridge (Code ST 511310) |
| Color | Transparent |
SEAL5 HT® is a professional high temperature clear silicone sealant , designed for applications requiring extreme thermal resistance and mechanical stability .
It guarantees reliable performance from –60 °C to +330 °C , with peaks up to 400 °C for 30 minutes , maintaining flexibility, transparency and perfect adhesion .
Its neutral and non-corrosive acetic formula ensures compatibility with most metals, glass, ceramics and rigid plastics , without causing oxidation.
Odorless, resistant to UV rays, water and chemicals , it can be painted with the most common water- or oil-based paints.
It is ideal for industrial and civil applications where high thermal performance is required, such as engines, heating systems, boilers, heat exchangers, ovens and chimneys .
How to Use
Preparation:
-
Thoroughly clean the surface from dust, grease and old sealants with SOLVIX .
-
Make sure surfaces are dry and stable .
-
Perform a preliminary test to check compatibility with materials and temperatures.
Application:
-
Cut the cartridge and nozzle to the desired size.
-
Apply with GUN7 sealant gun or similar.
-
Fill the joint up to 30 mm thick, levelling with a spatula if necessary.
-
Allow to cure 4 mm every 24 hours at room temperature.
-
Remove any fresh residues with SOLVIX .
-
Clean hands with PIC WIPES after application.
Ideal conditions:
Application temperature between +5°C and +40°C .
Applications
SEAL5 HT® is suitable for sealing and bonding subjected to high temperatures in the industrial, mechanical and construction sectors:
-
Heating and combustion systems: fireplaces, flues, boilers, heat exchangers, steam pipes.
-
Automotive and mechanical: engine heads, fuel pumps, water pumps, flanges, radiators, valves and gaskets.
-
Building and construction: wall-to-ceiling or wall-to-floor joints, metal panels, steel and wood frames.
-
Electrical and industrial: junction boxes, submersible pumps, heat-resistant or electrically insulated systems.
Thanks to the fire resistance tested to EN 1366-4 (up to 240 min) , it is also ideal for safety and fire insulation applications.
