Construction Grade Silicone Sealant One part Neutral cure Use for ACP, Stones, Metals, Curtain Wall Product ... one part neutral cure construction grade silicone sealant that easily extruded in any weather. It cures at room temperature with moisture in ... ability, resisting to ultraviolet ray, ozone, snow or temperature extremes.Neutral cure, non-acidic, will not corrode metal or other corrosion ...