ZINC RICH PRIMER

Zinc Rich Primers are widely used for the purpose of corrosion protection on iron and steel.  Their performance characteristics are well known and their use has become ubiquitous in the coatings industry. 

But there are issues.  Those based on inorganic technology are not user friendly.  They require meticulous surface preparation, will mud crack if applied at more than 4 mils (100 microns) and will not cure properly in wet conditions.  They are extremely brittle, so impact resistance is poor. Abrasion resistance ranges from good to poor.  Some formulations cannot be topcoated for 18 to 24 hours, resulting in production delays. 

These problems gave rise to the advent of zinc rich primers using organic resins as the carrier rather than inorganic.  While these are slightly more surface tolerant and significantly more flexible, they will not cure properly at cold temperatures and have poor impact resistance.

Madison Chemical developed AlumiZinc^® ‘S’ to provide the best of both worlds.  By incorporating both zinc and aluminum and by adding a variety of other anti-corrosive ingredients, AlumiZinc^® ‘S’ offers superior protection in a user-friendly and forgiving format.  AlumiZinc^® ‘S’ is surface tolerant.  Not only will it work superbly under extreme conditions on a grit blasted surface, but it is also able to provide surprisingly good results in everyday industrial/commercial environments without blasting.  For such situations, simple been power tool cleaning or pressure washing using Madison PreWash™ and warm water will suffice. 

The product handles like paint, cures at sub-freezing temperatures, won’t mud-crack and has a pleasing silver metallic colour.  The combination of abrasion and impact resistance exceed all other technologies.  Corrosion resistance is on a par with the best of the traditional inorganic and organic formats. 

A comparative laboratory study is available setting out the specifics, detailing both handling and performance characteristics among inorganic zincs, organic zincs and AlumiZinc^® ‘S’.  Click here to view ZINC RICH PRIMERS, A Comparative Study. 

To view a Technical Data Sheet for Madison AlumiZinc^® “S”, please click here.

NOTE RE GALVANIZED AND WEATHERING STEEL:  If you are coating over galvanizing or weathering steel, technology now exists that will eliminate the need for blasting, even for heavy duty and severe service applications.  Please refer on our web site to the GalvaClad^® series of products.

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Copyright © 2008 Madison Chemical Industries, Inc.  All rights reserved. AcrylaThane®, AlumiZinc®, CorroClad®, CorroCote®, CorroPipe®, CorroPrime®, CorroZinc®, FibreThane®, Flexcel®, GemThane®, GemThane AquaTech®, GemThane AquaTech STC®, HydroThane™, MariThane®, Maxxam™,  PilingPro®, PoleClad®, PolySheen™, TufSheen®, UltraLiner™, UltraPrime™, Gemthane® ,FussionClad™, GalvaClad™, NanoSheild™, PrepCrete™, FerroGrip™, GalvaGrip™ and Madison AP-50 Adhesion Promoter™ are trademarks of Madison Chemical Industries, Inc. We are an ISO 9001:2000 registered company.