Thermal Spraying Zinc (TSZ, TSA) more commonly known as ‘Metal Spraying’ is an anti-corrosion protection system which is used to extend the service life of another material.

Grade2 IMPACT use modern flame spray technology for application of 3 specific materials – pure zinc, aluminium or zinc/aluminium alloy metal wire.

Zinc & Aluminium are the two most commonly used materials for corrosion protection. The third least common is zinc/aluminium alloy which is generally used in environments where corrosion resistance of zinc is borderline.

In general terms, zinc is used in reasonably low corrosion applications such as water tanks, bridges and general structural steel. Aluminium is used in the harsher corrosion applications such as salt water and splash-zone areas. Aluminium is also used in high temperature areas such as flare booms or pipework on off-shore oil rigs, this is because aluminium effectively dissolves into the substrate when exposed to high temperatures – traditionally known as aluminising.

• Fast turnaround as coatings require very little drying or curing times.
• TSZ suitable for in service substrate protection > 200 ºC
• TSA suitable for in service substrate protection > 400 ºC
• Thermal sprayed zinc coatings can be applied to a far greater coating thickness accuracy ranging from 50 microns to 250 microns. We have total control over the zinc thickness applied.
• Low heat input during Hot Zinc spraying eliminates the risk of the thermal distortion of fabrications (especially thin walled frames and curtain walling).
• No drilling of sealed hollow section required with Hot Zinc Spraying.
• No dross produced with Zinc Spray, hence eliminating fettling of components (eg. Handrails) which can invalidate galvanizer’s anti-corrosive warranty.
• Eliminates handling Health and Safety issues with razor edges and drip spikes etc. (especially on handrails or balustrades).
• No weld lift with TSZ/TSA. Welds remain completely flat and consistent.
• Thermal Sprayed Coatings are the only coating systems recognised by International and European Standards EN ISO 14713 as giving greater than 20 years to first maintenance in very aggressive environments.
• TSZ & TSA Coatings provide far superior bond strength for paint systems as it provides an excellent profile unlike ‘shiny’ galvanized coatings.
• Metal Sprayed components can be powder coated or wet sprayed to produce a beautiful blend of corrosion resistance and superb appearance.

• Grade 2 IMPACT are accredited with ISO 9001: 2015 & ISO 14001: 2015 and strive to produce the expected high standards required to produce quality work within the industry.
• Grade 2 IMPACT also hold SSIP Accreditation with CHAS & Safe Contractor and hold Silver Membership with Construction Line.
• Our TSZ & TSA operators are certified by Metallisation’s School of Thermal Spraying Technology.