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ElastoSure Validated Against Acid / Chemical Aging on PU Waterproofing Membranes
We hid half of a 290-day acid test from ElastoSure. It still predicted the ending, the membrane barely noticed.
Secondary containment and chemical-exposure environments push PU waterproofing membranes through a different failure path than heat or moisture alone. An independent study immersed two PU formulations in 35°C, 5% H₂SO₄ solution for up to 290 days, the longest single-stressor test in the dataset. ElastoSure was fit on the first half of that duration and validated against the remaining held-out half.
Acid exposure proved the mildest of the three stressors tested: both formulations retained 88–92% of baseline tensile strength through 290 days. ElastoSure's fit, built without ever seeing the longer-duration points, still supported a predicted natural service life of 16.3–22.7 years, consistent with the 15–25 year range one-component PU membranes (including products such as Sika's Sikalastic and Alchimica's HYPERDESMO) are specified against.
Tensile strength retention vs. acid aging time
Prediction Accuracy
95%
For long-term durability prediction
Experimental Tests
80,000+
Used for training and validation
vs. 6 Months
35 Days
Replacing long-weathering tests
Faster Analysis
5–10×
Compared to traditional FE models