This productforms to any shape instantly and cures fast. After curing, it resists cracking, shrinking and migration caused by thermal cycling. Also, it can work up to 260°C and has good resistance of oil, water, anti-freeze and transmission fluid. So it's widely used to seal timing chain covers and other different covers. Technical Data: Acidic Silicone Neutral Silicone Appearance Exquisite and well-proportioned past, no agglomeration, no gelling and no surface solidify Sag ≤2.5 mm ≤2.5 mm Tack-free time ≤15 min ≤15 min Tensile Strength ≥1.80 Mpa ≥1.20 Mpa Break Elongation ≥250% ≥350% Curing Speed 24 hours 24 hours Shores Hardness 35-45 35-45 User Guide: 1. Clean all surfaces thoroughly. Remove old gaskets and prepare flange surfaces. Dry and remove all oil and grease; 2. Remove the cap, puncture inner seal of the tube, screw on nozzle and cut the nozzle to desired size; 3. Apply continuous, uniform 1 4mm bead around perimeter of one surface. Completely surround all bolt holes; 4. Wait about 10 minutes for silicone to skin over. Then reassemble the parts. 5. Silicone dries to touch in 1 hour and allow 24 hours to fully cure and bond.Notes: A) Leave thickness for gasket when reassembling; don't over-tighten the bolts. B) Sealant releases acetic acid (vinegar-like odor); Used with adequate ventilation. C) Replace the cap after use