Customized Soft Rubber Stopper Plug Waterproof 40-80 Shore A Hardness

1: Express: S.F. ,DHL,UPS, TNT, FedEx ect, for urgent and small order.

2: Air shipment: air port to air port , or air port to door.

3: Sea shipment: suitable for bulk goods. it will takes more longer time than air shipment.

1. How should hardness be chosen?
The listed 40–80 Shore A range describes options, not one universal grade. Specify nominal hardness and tolerance for the selected compound, then confirm insertion, retention and removal on a trial assembly.
A softer compound can deform differently during installation; evaluate the profile and mating opening together rather than selecting only by hardness.
2. What defines a water-sealing test?
a. The assembled opening and stopper dimensions.
b. Water pressure or immersion depth and exposure duration.
c. Water temperature and relevant additives.
d. Installation method and insertion depth.
e. Permitted leakage or moisture ingress.
f. Conditioning and repeated-use requirements.
g. The agreed test method and acceptance record.
3. What details are needed for a bored plug?
1. Hole count, diameter and location.
2. Mating tube, cable or probe dimensions.
3. Required fit and insertion force at the bore.
4. Wall thickness and surface requirements on the drawing.
5. Leakage criteria for the complete pass-through assembly.

4. What should accompany a custom enquiry?
1. Stopper and mating-opening drawings or original samples.
2. Compound, nominal hardness and color.
3. Water exposure and other operating conditions.
4. Quantity, packing and part identification requirements.
5. Dimensional inspection and assembly acceptance criteria.

For a custom water-sealing stopper enquiry, provide the mating opening, plug profile and test conditions with the selected compound and hardness.

Custom stoppers are reviewed from drawings or samples; confirm the complete assembly fit and agreed leakage test before production approval.