ZJ-2000年硅胶Weatherproofing密封胶

Description ZJ-2000 Silicone Weatherproofing sealant is a one-part, neutral-cure, architectural grade sealant specifically designed for general glazing and weathersealing in curtainwall and building facade.It easily extrudes in a wide rang weather condition and quickly cures at room temperature by reaction with moisture in the air to form a excellent , durable, flexible silicone rubber seal. Characteristic A.Easily use and can be extruded in any time. B.Neutral cure-suitable for use on most construction materials. C.Excellent adhesion to most construction materials without the primmer. D.Excellent weatherability, 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 ZJ-2000 is especially designed for general glazing and weathersealing in curtainwall and building facades. It is suitable for glazing weatherproofing movement joint and sealing the joints of the non-structural curtainwall. It can form a waterproofing sealed layer to many kinds of glasses, coated aluminum, decorative metal board, tile, and granite without primmer. Technical data 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±2oC 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 23oC > 0.4 or > 0.6 0.5 -20oC 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±2oC: 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