Watertight solution: new (H)DPX Tubtara® blind rivet nut with seal under the head

29 October 2014

The non-reactive peripheral seal, made of flexible organic based material, is applied to the under head bearing surface of Tubtara® rivet nuts with a flat head. It ensures an IP 67 waterproof Tubtara® sheet assembly (guaranteed under Dejond test conditions). During installation of the Tubtara® blind nut, the material fills any gaps, forming a robust seal between mating surfaces. The seal is also resistant to many automotive oils, antifreeze and transmission fluids.

 

New watertight solution : 
Tubtara® with seal under the head

Seal

The non-reactive peripheral seal, made of flexible organic based material, can be applied under the head of a Tubtara®.  It is resistant to many automotive oils, antifreeze and transmission fluids. 
Most common type:

Material Polyurethane Reusability yes
Colour blue Bead form concave
Sealing capacity > 150 bar Cure method heat cure
Temperature range -40  +100 °C Waterproof IP67 *
Shore hardness 50/65 A range    

*only guaranteed under Dejond test conditions – certificates available
Storage : min. 4 years shelf-life if stored in dry conditions (room temperature)

Tubtara® design

The underhead seal reassures an IP 67 waterproof  Tubtara-sheet assembly (if correctly installed). During installation of the Tubtara®, the material is gap filling, forming a robust seal between mating surfaces. 
The seal thickness varies. Compared to the same part without seal, this implies a reduced grip range and increased head height. Factors like seal thickness, hole size and setting force influence head height after installation (K2). See catalogue pages for K2 reference values.
The seal can be applied

  • on Tubtara’s in stainless steel, aluminium and coated steel, 
  • to the underhead bearing surface of a flat head Tubtara® (not recommended underneath 
  • countersunk or low profile heads),
  • on Tubtara’s with round or (semi-)hexagonal shank, open or closed end, from M4 till M12.

Samples

For detailed product offer: see our catalogue on pg 13, pg 21, pg 29 and pg 35
Samples, pricing, lead times and alternative seal options available on request.

  • Download info sheet of Watertight (H)DPX Tubtara®