Product Info

Goldseal Advanced Corrosion Control

Many clients maintaining road bridge assets or production lines are looking for reduced down times, simpler contract sequences and if possible lower cost and longer service life. In difficult access, highly corrosive or areas unwashed by rainfall Goldseal delivers on all four.

Our core business is corrosion control in severe environments where traditional protective coatings deliver their shortest service lives and least value for the maintenance dollar. Goldseal Si Tech has continually evolved since 1970 developing encapsulating barrier coatings with superior characteristics.

Goldseal Group manufactures, promotes and applies Goldseal Si Tech. This innovative technology has been developed in New Zealand.

Our Products:

Gen5 Si Technology (Substrate Interaction) is a variable film build, heavy weight anti-corrosive technology developed in New Zealand. Goldseal Gen5 Si Technology has evolved to fill a performance gap where industrial protective coatings deliver short service lives.
Gen5 Si Technology removes the critical adhesion interface where a corroding surface must be prepared to a high standard for a maintenance coating to gain and retain adhesion. Goldseal Gen5 Si Coatings are the result of 50 years of cooperative evolution with industry. The result is the removal of the solvent and a binder is replaced by a 97% solids carrier. The carrier is melted prior to application and applied by hot airless spray. There is no separation between the Goldseal and the substrate. Throughout its service life the Goldseal responds to vibration and expansion without cracking and is self healing to impact damage.
The contract application process and equipment remain standard but the coating and its capabilities deliver significant advantages in highly corrosive environments. The coating sets as soon as it touches the substrate without sagging. This creates a multi build capability, so any common film build can be achieved in one application (350-3000 micron).
The coating has a two phase cure:
Initially penetrants cross the adhesion interface and enter the physical structure of the steel , which kills existing corrosion and ensures no future coating damage can delaminate the protection.
A second phase sets up a firm dry encapsulating barrier coat, that is resistant to vibration, cracking or peeling. Yet throughout its service life Goldseal Si will self heal to scratch or impact damage.
There are a diverse range of difficult environments where dry film paints deliver their shortest service lives. Maintenance becomes very costly when these then need a complete strip and recoat. Si Technology requires spot rectification and complete recoat at 15, 20 or 30 years depending on the application. The Goldseal Group recognises the need to produce coatings that are less toxic , without solvents or catalysts. Industry is focusing on health and safety of personnel and the environment with low volatility coatings (VOC). There is emphasis on recycling, spill control, stock rotation, transport safety and landfill control.
With a primary focus on vehicle underbodies. Engineered for versatility, this innovative formula ensures comprehensive maintenance and protection for vehicles, stationary machinery, crevice corrosion, structural joints, welding, and more.
At 87% solids this formula is available as a clear or charcoal paste.
Experience unparalleled corrosion control for your vehicle's underbody with Goldseal Si Tech – your go-to solution for protecting valuable assets against the elements.
Cold Application: Perfect for the automotive environment, applied primarily by brush or spray. This makes it ideal for hassle-free underbody coating without the need for elaborate equipment or high-temperature environments.
Wide Substrate Compatibility: Minimal hand preparation is required for application to sound previous coatings, including paint, steel, galvanizing, oxidized steel, aluminum, and spalling concrete with exposed rebar.
Application Guidelines: For vehicle underbodies, apply Goldseal Si Tech by brush or spray, ensuring a thick underseal coating that adheres seamlessly to the contours of the vehicle. Address crevice corrosion with precision, fill gaps and cracks with ease. Recoat effortlessly, ensuring a moisture or corrosion-proof seal.
Recoating and Maintenance: Recoat efficiently by removing localised corrosion cells, rough or dry flakes, and applying a single coat to create a durable seal.
Simple hand touch-ups and cleanup using petroleum spirit or white spirit ensure a hassle-free maintenance process.
Council Bylaw Compliance: Perfect for caravans, leisure mobile batches, and tiny homes, Goldseal Si Tech meets the durability requirements of AS2312, ensuring structural longevity and compliance with new council bylaws.

Benefits of Goldseal Si Technology:

Goldseal Si Tech has been specifically developed to resist traditional coatings tendency to crack, undercut and expose the steel substrate. In many cases Goldseal completes its service as an aged coating, largely intact with no steel loss at pressure points or flange connections

Hotspray 97% Solids, A.C.C 87% Solids
VOC 2.9%

Multi build single coat
No Grit Blast
Non-Dangerous Goods for transport, storage or handling
Unlimited shelf life
Confined space use
High and Low Temperature application
Encapsulates previous or toxic coatings
Spill recyclable for return to commercial use.

Standard Paint Technology:

Most protective coatings are based on a binder mixed with pigment additives. This is delivered to the substrate by a solvent, which wets the surface and allows the coating to flow into an even wet film.

The cure process allows the solvent to exit the film leaving a hard, dry coating adhering to the substrate surface. This is standard paint technology which performs well in high traffic areas or where smooth or cleanable surfaces are required.

In highly corrosive environments chemicals accumulate on the coating surface. If the coating is stressed by expansion, vibration, mechanical damage or physical flexing it can lose surface integrity by chipping or cracking. This may only involve a minor percentage of the coated area. However corrosion cells are immediately created which accelerate rapidly under the coating in both dry or wet chemical environments. This occurs in process environments such as Galvanising plants and canneries, marine situations or in hidden environments such as barge interiors or cool store attics.

Barges and Vessels

Many barges or older vessels were assembled from steel with only a holding primer. Although the interior is a relatively closed environment there is usually a build up of contaminants in the bilge which slowly corrodes the interior.In many closed steel environments corrosion goes unnoticed until it appears through the hull from the inside out.
Factories & Buildings

The Goldseal coating can be applied without extensive preparation and where the debris from preparation can be controlled. Often maintenance is long overdue and a complete strip back to the steel would be required, in order to apply a paint type coating system.
Bridges

Goldseal is applied to cleaned, dry oxidised steel in one coat. It lubricates and penetrates bridge bearings and seals against moisture Ingress on moving parts. New Zealand district councils specify or use the Goldseal coating for steel structures. It can also be applied to hollow bridge foundation legs in condensation environments.
Vehicle Underbody

Goldseal A.C.C Vehicle Underbody protection can be applied to vehicle underboiies to protect from corrosion and exposure to elements. Our innovative formula ensures comprehensive maintenance and protection for vehicles, stationary machinery, crevice corrosion, structural joints, welding, and more.