Aluminum Foil and Acid Test

Test Objective:
To ascertain the effectiveness of SYDERMA® to serve as a skin protectant against potentially harmfull environmental substances.

Test Method:
An aluminum foil sheet was cut and fit over a metal pan. Twelve 50 mm diameter circles were drawn on the foil. Six of the circles were coated with 2 grams of SYDERMA® and dried. 0.1 ml of 80% and 0.1 ml of 40% Hydrochloric Acid (HCl) were each placed on 3 coated and 3 uncoated circles. The contact time for burn-through was recorded. The analysis was discontinued after 1 hour.

Interpretation of Assay:
The time for Hydrochloric Acid to penetrate SYDERMA® and contact the aluminum foil was observed and recorded. The penetration of SYDERMA® by the acid would be confirmed by the burn-through of the aluminum foil that would be caused by the chemical reaction between the Hydrochloric Acid and aluminum foil. The same observations and recording were done for the uncoated aluminum foil test samples.

Test Results:
SyDERMA®, served as a barrier to the penetration of Hydrochloric Acid onto aluminum foil.