The Decra tile steel core undergoes a high perfomance zinc aluminium galvanisation process which offers a very significant improvement in performance compared to traditional zinc galvanising processes used by lesser quality orientated manufacturers.
Decra tiles require no further protection to the cut edge providing they are cut using a Decra guillotine, reciprocating saw, tin snips or nibblers. The use of the correct cutting equipment stops any destruction occurring to the protective zinc/aluminium coating and allows a protective cathodic process to take place. An explanation of the cathodic process can be seen below.
Protection of Steel at Cut Edges
Two differing metals each with a different electric potential in direct physical contact with each other and an electrolyte (water) form a galvanic cell. Within this galvanic cell electrons from the zinc atoms which have a lower electric potential transfer themselves to the steel atoms which have a higher electric potential. This charging of additional electrons to the steel atoms protects the steel from corrosion. Corrosion will only take place in any metal when electrons from a metal atom are lost into an electrolyte (water). Since the steel atoms are being charged with electrons corrosion will not take place.
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