Pressure Sensitive Torque Activated Cap Seals Liners -89mm (3.50") - 500 PCS -Made in USA -for Wide Mouth Glass & Plastic Ball Mason Canning Jars - No Induction Sealer Needed - Black (500)

These polystyrene jar foam liner seals coated with torque-activated adhesiverequire no tools and no heat induction equipment.For proper application consider the following recommendations:● Make sure your pressure sensitive liner size matches the jar opening.These 89 mm (3.50 inches) seals are to be used with WIDE mouth jarsthat measure 3 in (76 mm) inner and 3 3⁄8 in (86 mm) outer diameter neck size.● Completely clean the jar top with clean cloth and alcohol to clear of liquidand/or solids. Center jar seal on top of you plastic or glass jar and apply. The whiteside of the seal shall be facing down the side with black letters shall be facing up.● Screw metal or plastic cap on jar. Make sure the liner and cap are tightly securedon the container.● Once the cap is applied it should not be removed for at least 24 hoursto ensure proper adhesion. Although depending on your application the adhesionprocess might take significantly less time.● Seals can be used with glass and plastic jars and with lined or unlined caps.These pressure sensitive liners are best for use with powder or dry products.● Avoid overfilling your containers!● Once seal is removed it cannot be reapplied.● Not suitable for applications containing oil.