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Shield Technology
Fighting Corrosion in Your Workshop

Except for the lucky few, workshops, especially in the UK, are damp.  Dampness - or humidity - means that your beautiful shiny new tools (and that includes machine tools) are being attacked, damaged and devalued by corrosion from the minute they are brought into your workshop.  If you use any form of external combustion heating in your workshop, of course, then you are exacerbating the problem.  If you are a site worker, then the rain, snow, fog and mist will be having the same effect - but probably at an even greater rate!Click for larger image of the plane and the amazing results of treatment with Shield Technology rust removal  products

Woodworkers have used many and varied ways of trying to combat this silent menace: wrapping tools in oily rags, spraying them with WD-40, applying coats of grease or wax, and so on.  The problem with all of these methods is that they are generally short-term, don't work too well and frequently require you to clean the protective "gunge" off the tool before you can start to use it.  Shield Technology products are different: for a start they really work; secondly they are easy to apply and maintain; and they are each made to suit a particular purpose so no need to compromise on performance.

If your tools have gone "beyond the pale" and already look like recently-unearthed archaeological remains, then there's even a rust remover product which works equally effectively.  Almost nothing is beyond hope!

Corrosion Protection/Prevention

ToolGuard VCI toolbox contents protection from Shield TechnologyIf you keep your tools in a toolbox or similar, closed, container then probably the best long-term protection is to use ToolGuard VCI in your toolbox where it will work to release a protective vapour, each container being sufficient to protect a 50 litre (2 cu. ft.) volume for up to 12 months  VCI offers simple, effective, unbeaten protection against corrosion.  The released vapours contain active corrosion inhibitors specifically designed to protect iron and steel in damp and humid conditions (Up to 100% RH).  ToolGuard VCI is available in packs of one, three or ten units to give on-going protection to your tools.

Machinery tables, lathe beds and similar large exposed surface can be partShield Technology ProtecTool wax polishicularly vulnerable to corrosion since, by their very nature, these items cannot easily be stored away from the dampness lurking in the workshop.  For protecting these items, but equally suitable for use on exposed hand tools such as saw blades, chisel blades, hand plane soles etc. we recommend the use of ProtecTool Wax Polish .  The product is a soft paste wax designed specifically to protect iron and steel tools and machinery from corrosion.  Unlike ordinary wax polishes which, at best, can offer only barrier protection, ProtecTool contains a unique blend of powerful contact corrosion inhibitors suspended in a highly refined microcrystalline wax carrier.  ProtecTool does not contain silicone compounds.

ProtecTool can be buffed to a sheen producing a low friction surface which eases the passage of timber across the machine table, reduces the effort of hand planing and counteracts blade jamming when sawing.  No need to worry if your timber is damp or if damp shavings rest on your lathe bed: with ProtecTool Wax, your machine beds are protected.

MetalGuard Ultra and GreasExtra from Shield TechnologyMetalGuard Ultra is designed to give long-term protection to ferrous products by creating a micro-thin (two microns) coating on the surface, giving up to 2 years' protection against corrosion.  The film is clear and will not yellow with age and parts can easily be wiped clean.  This product has powerful water-displacement characteristics and thus can even be used to coat wet parts.  MetalGuard may be applied by brush, spray or dipping.  This product does not contain silicones and complies with DEF STAN 68-10/2 (PX24) and NATO CODE C-634.  It is harmless to most plastics, rubbers and paints.

Shield Technology GreaseXtra is designed for coating parts which may be held in stock for some time in damp conditions, insuring against deterioration during storage.  GreaseXtra contains a high proportion of unique, powerful corrosion inhibitors suspended in a highly refined gelled mineral oil. It produces a "self-healing" film which is capable of creeping and migrating into rolled or pressed seams and other small cavities where electrolytic action can create a galvanic cell causing rapid and potentially catastrophic deterioration of parts.  Being a grease, this product can also be used to both lubricate and protect larger items of equipment operating in damp conditions.  Removal is easy using a cloth dampened with white spirit.

 

Honing Fluid and Corrosion Inhibitor for Wetstone Grinders

There is something that seems intrinsically perverse about sharpening ferrous tools using water.  Excellent though wetstone grinders such as the Tormek can be at sharpening tools, it is essential that tools are thoroughly dried after sharpening.  Unless, that is, you render the water in your wetstone grinder trough non-corrosive by using HoneRite Gold in the water.  This superb product is simply mixed with water to be used in the trough of the grindeHoneRite Gold and HoneRite #1 from Shield Technologyr and thereafter will inhibit corrosion both in the tools sharpened and in the machine itself.

The same tool-saving characteristics make HoneRite Gold the fluid of choice for lubricating Japanese waterstones and diamond sharpening systems of both perforated and solid plate construction.

HoneRite Gold is supplied as a concentrate: a 250 ml tin makes up into 6 litres of non-corroding honing fluid.

If you work with India stones or natural sharpening stones such as Arkansas or Washita stones, then HoneRite #1 is the product for you.  It is a dual-action ultra-low viscosity honing and lapping fluid which speeds and eases sharpening by hand.  Its low viscosity makes it a fast cutting fluid whilst its powerful anti-corrosive additives continue to protect your tools after sharpening.  HoneRite does not contain silicones.  Old, clogged oilstones can be revived by soaking the stone in HoneRite and scrubbing with an old toothbrush or similar to remove the loosened debris from the pores of the stone.

 

Rust Removal

Restore Rust Remover and Restore Pre-Clean from Shield TechnologyIf this talk of corrosion prevention seems to be a little late in the day for your tools, then there's still no need to despair.  Those clever folk at Shield Technology have a solution even for this sorry state of affairs.  Restore Rust Remover will not only remove built-up rust but it will also continue to protect your tools after the initial rust has been removed.

The non-acidic, water-based formulation of Restore only removes the rust from your tools and will not attack plastics, rubbers and non-ferrous metals.  The solution is biodegradable when spent and is very economical in use with the 500 ml bottle making up a solution of 10 litres for rust remover, for normal use. 

Parts need to be degreased before treatment with Restore Rust Remover and for thSection of saw blade treated with Restore Gel allowing comparison of treated and untreated sectionsis purpose Restore Pre-Clean is ideal.  This product too is biodegradable and supplied as a concentrate which is made up to the required strength using water.  Loose rust should be removed by wire brushing before using either of the products mentioned here.

If the part to be de-rusted is not suitable for immersion treatment - maybe it is still mounted in situ or is too large for the treatment bath - then the new Restore GEL formula from Shield Technology provides a perfect solution.  When the time came to try out this new "wonder solution" we happened to have an old heavily rust-encrusted two-handed saw lying around in a very sad state.  Not so much in need of TLC as never having had a whiff of it since it left the maker's factory!

Detail of saw blade after treatment with Restore Gel from Shield TechnologyWe masked off a dividing line with tape  (visible upon removal as the slightly darker coloured lines on the photos) and set to following the instructions on the bottle - basically consisting of massaging the gel onto the tool surface using a kitchen pan scourer pad.  We used no pre-treatment whatsoever: no sanding, no wire brushing, no going-over with emery cloth - not even a wipe down with an oily rag.  The results you see in the accompanying photos are wholly down to the efficacy of the product.  Coating the treated half of the saw with the gel took about five minutes, maybe less.  We were so impressed by the result of the first treatment that we followed up with a second attempt - and were amazed to see that the good results from the first test got even better.  You can repeat the treatment and, to a point (as yet undetermined), see improved results each time.

The process does not exactly turn base metal into gold (if it did, we'd be using it, not selling it to you!!!) but it gets pretty d***** close.  A rusty widget dug out of the garden will not be turned into a shiny "as-made" mantlepiece-gracing artefact in seconds, but tools and ferrous components which have become unsightly and/or unusable because of corrosion will definitely be rescued by this process.  A final bonus is that the tools are also left with a finish which has a degree of corrosion-resistance, though this should, in most cases, be augmented by the use of the preservative products listed above.Click for larger image of the plane and the amazing results of treatment with Shield Technology rust removal  products

Showing just how dramatic the cleansing action of Shield Rust Remover can be, the accompanying photo of a Stanley No 5 plane bears witness.  This is, of course, a composite photo but is composed of two separate 'before' and 'after' images (I know because I composed it myself and I still have the original images!)  The plane had been left for several months exposed to the elements after the roof of a workshop collapsed under the weight of snow last winter.  After several weeks of exposure to the elements and then storage, still in situ in the crumbling workshop but under a tarpaulin - a guarantee of humid rust-promoting conditions - the plane was finally dug out and presented to Paul Prince of Shield Technology with a request that he make it usable again.  GIven the severity of the corrosion, Paul soaked the plane for four hours with the solution at a temperature of 50 degrees and what you see is the stunning result.

Instructions for use are provided on the product labels.

 

*NB: Prices quoted in pounds sterling. 
Value Added Tax will be added to invoices to EU residents unless
a valid VAT registration number is quoted when ordering.

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1997-2011 P. Hemsley.  The information on this website is the copyright property of Peter Hemsley & ToolPost Ltd.  Coeur du Bois and The ToolPost are trading styles of Peter Hemsley.  Whilst reasonable efforts are made to ensure the accuracy of information presented, no liability can be accepted for errors in this information nor for contingencies arising therefrom.  If you are inexperienced in any aspect of woodworking, we would strongly counsel that you take a course of formal instruction before commencing to practice