IOTA GF998 Fire Resistant Silicone Weatherproofing Sealant

1. Weatherproofing joint seal for the curtain wall with fire resistance requirement; 

2. ±25% movement capacity

Features：

1.FV-0 class fire resistance ,the highest rate in China

2.Good weatherability, virtually unaffected by sunlight, rain, snow and ozone 

3.Neutral cure – suitable for use on metals, coated glass, aluminium panels, terracotta panels, concrete materials, galvanized steel and many other substrates.

4.Extension/compression movement capability of up to ±25 percent of the original joint width

5.Good resistance to temperature extremes, stable and flexible over the temperature range from –50 to +150 ℃

6.Good unprimed adhesion to a wide variety of construction materials

7.Easy of application-ready to use as supplied 

8.Good compatibility with other neutral silicone sealants

COLOURS

IOTA GF998 is available in black and gray 

PACKAGING

IOTA GF998 is available in disposable cartridges (net 300ml) and sausages (net 590ml). 

Typical properties：

These values are not intended for preparing specifications

*GB: Chinese National Standard

STORAGE AND SHELF LIFE

IOTA GF998 should be stored at or below 27℃ in original unopened containers. It has a shelf life of 12 months from the date of manufacture.

LIMITATIONS

IOTA GF998 should not be applied:

As structural sealant

To the materials that bleed oils , plasticizers or solvents, such as impregnated wood, oil-based caulks

In totally confined spaces as sealant requires atmospheric moisture for cure

To frost laden or damp surfaces 

For continuous water immersion

When surface temperature below 4℃ or over 50℃

To copper, zinc or lead coated surfaces