High Temp Sealant HTN

High Temperature Silicone

Neutral curing sealant and adhesive with excellent adhesion properties on glass, glazed ceramic, concrete, stone, artificial stone, aluminium, non-ferrous metals, zinc, steel, wood-based materials, plastics and rigid PVC.

Areas of Application

Construction, agriculture, heating and plumbing, air conditioning and oven building

Application Examples

  • Sealing street lights, headlamps and lamp housings
  • General waterproofing on heating installations
  • Glazing in sanitary facilities, heating and ventilation pipes, cold rooms
  • Grouting fireplace mantles, dryers, ovens and heating cabinets
Size 310 ml
Art. Nr. 15 0387 35
Skinning 5-10 min
Setting Time 2 – 3 mm (24 hours)
Recommending Working Temp +5 °C to +20 °C
Elongation at Break max. 350 %
Temperature Resistance -45°C to +300°C
(Intermittent to +350°C/1 hr.)


Bonding and Sealing Agent

Special Features:

  • Is chemically neutral, low-odour, non-corrosive and overpaintable around the border.
  • Is suitable for use both indoors and outdoors.

Instructions for use

The surface must be clean, dry and free from contaminants such as oil, rust or grease. Highly absorbent and porous surfaces must be prepared with a temperature-adjusted primer. The joints should be at least 4 mm wide and 4 mm deep. The maximum joint is 30 mm width and 10 mm depth. For joints over 10 mm width, the joint depth should not exceed half of the joint width. Larger joints should be filled with a heat-resistant backfill material (such as ceramic band) before sealing. It is advisable to cover the joint edges with masking tape to ensure a clean and straight bond. The sealant must be applied so that enough pressure takes place on the joint flanks. It is particularly important to ensure that no air bubbles are in the grout. Immediately flatten the applied sealant with a spatula. For bonding, a vertical, caterpillar-shaped application is recommended to ensure enough supply of humidity during the cross-linking process.