*Sika SikaCor Icosit 6630 System Primer

Please note, this product is now discontinued. Contact our technical team for a suitable alternative.

Sika SikaCor Icosit 6630 Primer is a low solvent, anti corrosive paint system primer that can be applied directly to new and weather galvanised steel. Especially suited for application to Steel and Street Furniture.

Sika SikaCor 6630 Primer is a low-solvent, oxidative drying high-build coating with active corrosion protection pigments based on modified synthetic resin combination. Suitable as a system alongside Sika SikaCor 6630 Topcoat.

Sikacor Icosit 6630 is a one coat polyurethane paint system that can be applied directly to new and weather galvanised steel, especially suited for application to Steel and Street Furniture. This system is highly versatile and can be used directly onto steel and galvanised steel, whether it is new or weathered. It can also be used to overcoat previously painted steel. Offers a life expectancy in excess of 15 years to first maintenance in ISO 12944 Part 5.

Best Uses

The Sikacor 6630 System (Primer and Topcoat) is best used for providing weather resistance to rural, industrial and marine atmospheres. However, it also works excellently well on all kinds of street furniture, including lighting columns, pipelines, bridges, lattice, masts and the outside protection of silos. Sika 6630 is hard wearing and weather resistance making it extremely long lasting as it needs to be.

• Low solvent content, easy to apply and environmentally friendly
• Excellent corrosion protection even in chemically aggressive atmosphere
• Excellent adhesion to steel, galvanized surfaces, stainless steel, copper, aluminium, hard PVC and timber
• Good corrosion protection even on manually de-rusted surfaces
• Excellent colour-shade retention and chalking resistance
• Non-brittling due to an unique binder combination

Coating Systems

Steel:

• 2 - 3 x SikaCor®-6630 System Topcoat

In case of manual de-rusting:

• 1 x SikaCor®-6630 Primer
• 2 x SikaCor®-6630 System Topcoat

Galvanized surfaces, stainless steel, copper, aluminium, hard PVC and timber:

• 2 x SikaCor®-6630 System Topcoat

Maintenance coatings:

• Patch-up with SikaCor®-6630 Primer
• 1 - 2 x SikaCor®-6630 System Topcoat

Application

Steel:

In case of aggressive industrial atmosphere or highly polluted surfaces (e.g. by chlorides, sulphates, nitrates etc.), Blast cleaning to Sa 2 ½ according to EN ISO 12944, part 4. Free from dirt, oil and grease. In case of lower exposure as e.g. in rural atmosphere or indoors, manual surface preparation (power tool cleaning) to St 2 is acceptable.

Galvanizing, stainless steel, copper, aluminium, hard PVC:
Free from dirt, oil, grease and corrosion products.

Maintenance coating:
In case of well adhering coating systems, careful cleaning (e.g. by water jetting) is sufficient. Loose particles must be removed, defective areas to be de-rusted to
surface degree PSa 2 ½, PMa or PSt 2 and primed with SikaCor®-6630 Primer.

For contaminated and weathered surfaces e.g. galvanized or primed areas we recommend to clean with SikaCor® Wash.

The method of application has a major effect on achieving uniform thickness and appearance. Spray application will give the best results. The indicated dry
film thickness is easily achieved by airless spray. Adding solvents reduces the sag resistance and the dry film thickness. In case of application by roller or brush,
additional applications may become necessary to achieve the required coating thickness, depending on type of construction, site conditions, colour shade etc.

Prior to major coating operations a test application on site may be useful to ensure the selected application method will provide the requested results.

Apply by brush and roller or via:

Conventional high pressure spraying:

• Nozzle size 1.7 - 2.5 mm
• Pressure 3 - 5 bar

Airless-spraying:

• Pressure min. 180 bar
• Nozzle size 0.38 - 0.53 mm (0.015 - 0.021 inch)
• Spraying angle 40° - 80°