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Reduce cost through fewer components more easily assembled.
Consider dual durometer (hard/soft) part design.
Adjust part geometry for Santoprene™ TPV from thermoset rubber geometry in reducing volumes whenever possible.
Account for tolerance extremes.
Tips to seal with Santoprene TPV
For static sealing, look for 25% compression of a soft Santoprene TPV grade; 45% is acceptable with extreme tolerance.
To improve the elastic recovery in a semi-dynamic application, create a hinge in the bending area with maximum 45% local strain under extreme conditions.
Beads may help sealing.
Consider stress relaxation effects for life predictions.
Tips to modify the stiffness of a part
An increase in thickness of 25% nearly doubles the part stiffness.
Each hardness step-up, from 111-35 to 101-87, nearly doubles the modulus.
A convolute section increases the flexibility.
A convolute section increases the resistance to radial deformation.
