Silicone sealant

Description Silicone Weatherproofing sealant is a one-part, neutral-cure, architectural grade sealant specifically designed fo

Characteristic

a. It can be easily used and extruded any time.

b. Neutral cure-suitable for use on most construction materials.

c. Excellent adhesion to most construction materials without the primmer.

d. Excellent weather ability, virtually unaffected by sunlight, rain, snow, ozone or temperature extremes.

e. Low modulus sealant.

f. Extension/compression movement capability of up to ±50% of the original joint width.

Where to use

It is especially designed for general glazing and weather sealing in curtain wall and building facades. It is suitable for glazing weatherproofing movement joint and sealing the joints of the non-structural curtain wall. It can form a waterproofing sealed layer to many kinds of glasses, coated aluminum, decorative metal board, tile, and granite without primmer.

Use limitations Silicone Weatherproofing sealant is not fit for structural usage. It should NOT be applied in the following conditions:

a. To building materials that bleed oils, plasticizers or solvents and green or partially sulfur zed gaskets or tapes, etc.

b. In totally confined spaces (Silicon sealant need the water in the air to cure)

c. For continuous inversion in water or below-grade applications all the year

d. To painted surfaces, may cause seal failure as the paint cracking or paint stripping

e. To frost-laden or wet surfaces

f. Surface touch the food directly

g. Easily suffer mechanical wear

h. Fireproofing seal system

Typical properties (for reference)

The following data is for reference, is not suggested to make standard.

No Item The standard Test result Test method Test at 50±5% RH and temperature 23±2   1 Appearance Have no grain, no agglomerations,1 Pass the the standard 2 Droop degree mm Uprightness ≤3 0 GB/T113477.6-2002 Level No distortion No distortion 3 Tack Free Time, h ≤3 0.8 GB/T113477.5-2002 4 Extrusion ability, ml/min ≥80 137 5 Tensile modulus Mpa 23 > 0.4 or > 0.6 0.5 -20   6 Curing time at 50±5% RH and temperature 23±2,days 7-14 7-14 As Cured After 21days at 50±5% RH and temperature 23±2:   7 Durometer Hardness,(Shore A), points   28 GB/T1531-1999 8 Tensile strength at 25% elongation, Mpa   0.2 GB/T113477.8-2002 9 Tensile strength at 25% elongation, Mpa   0.35 GB/T113477.8-2002 10 Tensile at 100% Elongation   no break GB/T113477.8-2002 11 Ultimate elongation % at break,%   350-400 GB/T113477.8-2002 12 Sealant Class   25LM ISO 11600 or JC/T881-884-2001

Silicone sealant