ZJ-225 General Use Neutral Silicone Sealant

Description Zhijiang ZJ-225 Neutral Silicone Sealants is a one-part, medial modulus, neutral curing sealant. It has an excellent adhesive ability to most construction materials without a primer. Characteristic a. Can be easily used and extruded any time. b. Excellent contact change and extrusion ability, in any air temperature( -40 to 100) can extrude easily. c. Excellent adhesion to stone, ceramics, concrete, and other building materials. It has no pollution to porous materials. d. Outstanding weatherproofing ability, resisting to ultraviolet ray, ozone. e. Be compatible with all kinds of silicone structural sealant. Use limitations ZJ-225 is not fit for structural usage. It should NOT be applied in the following conditions: a. To all materials that bleed oils, plasticizers or solvents, and green or partially sulfur zed gaskets or tapes, etc. b. In totally confined space (Silicone sealant need the water in the air to cure) c. For continuous immersion 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 or wet surfaces f. Surface touch the food directly g. Easily suffer mechanical clash. Typical properties (for reference) The following data is for reference, is not suggested to make standard. NoItemThe standardTest resultTest methodTest at 50±5% RH and temperature 23±2oC 1AppearanceHave no grain, no agglomerations,1Pass the the standard2Droop degree mm Uprightness ≤30GB/T113477.6-2002LevelNo distortionNo distortion3Tack Free Time, h≤30.8GB/T113477.5-20024Extrusion ability, ml/min≥802365Tensile modulusMpa23oC > 0.4 or > 0.6 0.7 -20oC6Curing time at 50±5% RH and temperature 23±2oC,days7-177-17As Cured After 21days at 50±5% RH and temperature 23±2oC: 7Durometer Hardness,(Shore A), points30GB/T1531-19998Tensile at 60% Elongationno breakGB/T113477.8-20029Ultimate elongation % at break,%120GB/T113477.8-200210Sealant Class12.5EJC/T881-884-2001