Performance Comparison between Our Filter PU Adhesive & Ordinary PU Adhesive

Filter PU adhesives give shorter cycle times and can actually be molded to replace the traditional metal end-cap. Given the vital role of PU adhesives in filter assembly, the quality of PU adhesive is of great importance. What makes a good PU adhesive? We choose PU adhesives from the following aspects.

Our PU Adhesives VS Ordinary PU Adhesives

Elasticity

Elasticity, the ability of a deformed material body to return to its original shape and size when the forces causing the deformation are removed. The higher the elasticity, the better the adhesive quality.

Excellent elasticity and can recover quickly after pressing

A finger presses on the end cap made of our PU adhesive.

Slow recovery after pressing

A finger presses on the end cap made of ordinary PU adhesive.

Hardness

Hardness is a measure of the resistance to localized plastic deformation induced by either mechanical indentation or abrasion. The smaller the hardness, the better the resilience.

Better resilience

A hardness tester is placed on the end cap made of our PU adhesive.

Poor resilience

A hardness tester is placed on the end cap made of ordinary PU adhesive.

Tear resistance

Tear resistance is a measure of how well a material can withstand the effect of tearing. The higher the tear resistance, the longer the service life.

Difficult to tear and fine tear surface

A hand is tearing the end cap made of our PU adhesive.

Easy to tear and rough tear surface

A hand is tearing the end cap made of ordinary PU adhesive.

Tensile Strength & Elongation

Tensile strength refers to the amount of load or stress that a material can handle until it stretches and breaks. Elongation is a measure of deformation that occurs before a material eventually breaks when subjected to a tensile load.

  • 1.48 MPa tensile strength, 1.8 times higher than that of ordinary PU adhesive.
  • 281.63% elongation, 2.1 times higher than that of ordinary PU adhesive.
The tensile tester breaks the Our PU adhesive with a large pulling force.
  • 0.83 MPa tensile strength
  • 134.36% elongation
The tensile tester breaks the ordinary PU adhesive with a small pulling force.

Stringent Quality Control

Our quality inspector is measuring the hardness of the PU adhesive.

Hardness measurement

Our quality inspector is measuring the density of the PU adhesive.

Density measurement

Our quality inspector is checking the resilience of the PU adhesive.

Good resilience

Our quality inspector is testing the tensile strength of the PU adhesive.

Good tensile strength

The PU adhesive cross section has uniform bubbles.

Cross section pictures

Our quality inspector is testing the moisture content of the PU adhesive.

Moisture determination