For use on iron, bronze, copper and copper alloys, brass, steel, zinc and galvanised materials. Also effectively cleans SCALE and rusty water stains. Treatment selectively ruptures the bond between base...
For use on iron, bronze, copper and copper alloys, brass, steel, zinc and galvanised materials. Also effectively cleans SCALE and rusty water stains.
Treatment selectively ruptures the bond between base metal and corrosion layer, reducing rust to a sludge which is easily wiped or brushed away. Clean-water rinse stops the process. Even relatively prolonged immersion over several days has no significant effect on sound metal, thus giving the conservator complete control over the process -and freedom from it.
The totally benign nature of the product eliminates work and health hazards associated with common de-rusting systems such as those based on phosphoric and hydrochloric acids. Gloves, masks ·or protective clothing are not required; normal ventilation and common-sense hygiene procedures should be observed. Following treatment, metal surfaces are stabilised for up to 14 days, giving ample time for applying long-term protection (such as Renaissance microcrystalline wax polish, which confers a tough -but reversible -gfass-dear lustrous finish).
Bi-metallic electrolytic effects between dissimilar metals are insignificant in treatment periods of up to 48 hours. There is no attack on zinc coatings, excepting greatly prolonged immersion. Treatment is most effective at temperatures between 10°C and 20°C. Colder solutions slow the action still further a useful quality when objects are left immersed over a weekend. Contrast this safe, gentle handling of metals with the more vigorous, often deleterious action of mineral acids.
Loose rust or scale should be wire-brushed and surfaces de-greased to allow optimum performance. Immersed objects will be clear of light corrosion in as little as two minutes. During longer immersion for heavier rusting, periodic checks can be made by rubbing the object with a finger. Brushing speeds the process. Storage and treatment vessels of mild steel, porcelain, rubber, polythene or other plastics are suitable. Galvanised, tin, zinc or lead-lined tanks are NOT suitable. After use of the solution, separate it from any sediment by siphoning into a clean container and top up occasionally with fresh solution. The product remains effective for many weeks.
Our cast iron products are supplied straight from the factory with a light oil or wax coating to prevent rusting. Cast Iron is susceptible to rust when exposed to moisture directly or in high humidity, in cases where the product may be exposed to moisture we recommend applying a suitable finish such as lacquer or varnish and oiling will also provide a level of protection. Light surface corrosion can easily be removed with a lightly oiled cloth, wire wool or a wire brush or if you like the more industrial aged look then no coating will be needed.
For lasting protection we recommend using our Renaissance Wax Polish which provide lasting protection on metals and many other surfaces.
Our wooden products are sourced from sustainable managed FSC certified forests and our suppliers are FSC certified importers.
Plywood Grades Our plywood boards are cut from BB/BB grade quality baltic birch plywood sheets. This grade of plywood allows for patches either an oval or a jigsaw on the face of a board, we ensure there is always one perfect face and minimal boards with a plug or patch and on one face only.
Plywood Tear Out Tear out is unavoidable on the cross cut. We remove boards with excessive tear out but there may be minimal amounts on the reverse side.
Plywood Bowing On occasions due to changes in temperature and humidity boards can slightly bow, this can sometimes happen after packing whilst in storage or transit. If you receive any boards which have excessive bowing then please get in touch for replacement.