Makers Industrial Ltd and QED jointly commissioned an independent test to verify whether it is possible for a corrosion inhibitor to migrate through concrete.

Samples of Margel VPI 580 where submitted for testing to Geomaterials

The Conclusion Summarised by Dr French BSc,PhD,FGS of Geomaterials was;

"It is clear that Margel does travel through a concrete pore structure, or more precisely, each element of it does."

"Each active ingredient contains a known corrosion inhibitor with an industry track record of inhibiting corrosion, we can verify that this readily travels through dense structural concrete"


Report on testing from samples taken from Wynford House, London. 4310.PDF

----- further test results to follow -----