About ViterShield SPF Epoxy Primer/Finish

ViterShield SPF Epoxy Primer/Finish is a two pack epoxy mid sheen primer/finish for blast cleaned steelwork.

• It has an eggshell finish and is available in any colour.
• Low temperature curing (down to 0ºC) and low tendency to bloom
• Use as an anticorrosive primer/undercoat or primer/finish for general structural steelwork
• Good resistance to undercutting from damaged areas
• Overcoatable with most epoxy, acrylic or polyurethane coatings
• Use as a base coat for most thin film intumescent coatings

Preparation 

Surfaces to be coated must be clean, dry and free from any material such as oil, grease, salts and dirt that might affect adhesion.

Remove loose flaking or friable material. 

Where necessary, remove weld spatter and grind smooth all rough,sharp edges and weld seams.

Galvanised steel

Thoroughly degrease with Cleaner Degreaser (Product Reference H30 or ND14) and lightly abrade any very shiny areas. Treat with a galvanising wash / mordant solution (Product Reference HSP 84/1) prior to application of the Primer Coat

Mild Steel 

Degrease with a Cleaner Degreaser (Product Reference H30 or ND14) and either manually abrade or blast clean to Sa2½ (ISO 8501-1:2007)

If blast cleaning is not possible, phosphating is recommended for cold rolled steel to improve adhesion.

Phosphate Steel 

Degrease with Cleaner Degreaser (Product Reference H30 or ND14) and manually abrade prior to application of the Primer Coat

Stainless Steel

Degrease with Cleaner Degreaser (Product Reference H30 or ND14) and manually abrade. Etch prime with a Two Pack Etch Primer, (Product Reference 26/3) prior to application of the Primer Coat

Aluminium and Alloys

Degrease with Cleaner Degreaser (Product Reference H30 or ND14) and manually abrade. Etch prime with a Two Pack Etch Primer, (Product Reference 26/3) prior to application of the Primer Coat

The temperature of the ambient air, surface or paint should not fall below 5ºC during application or drying.

Application Conditions

Relative humidity should not exceed 80%. 

The surface temperature of the steel should remain at least 3ºC above the dew point.

Cold damp conditions will impair drying times and the final finish.

Recommended Finish Coats:, Epoxy, acrylic or polyurethane coatings

Recommended Thinners

1031 Thinner

Coverage Rates

Recommended Film weight: WFT minimum 125µm, maximum 333µm

Theoretical coverage rate: 3m² to 8m² per litre

Application Methods

Vitershield SPF can be applied by the following methods.

Airless Spray; Yes

Conventional Spray; No

Brush; Yes 

Roller; No

Mix Ratio:  3 parts base : 1 part hardener

Pot life 8 hours at 23ºC

Application Guidance 

Airless Spray

Output fluid pressure at tip 2500 -3000psi, 

Tip Size 15-21 thou (0.38-0.53 mm) 

Thinning with 10301 Thinners  (Note thinning will reduce the film weight)

Brush 

Recommended for small areas of touch up or remedial work only

Thin as appropriate to achieve a smooth film flow.

Please note: application by brush will result in a reduced film thickness and is recommended only for small areas of touch up/remedial work

Drying times at a WFT of 165µm at 23ºC

Dust Dry   30 minutes 

Overcoat   4h

Hard Dry   2h 

Cleaning Tools and Equipment: 

Clean equipment with 950 Thinner after use

% Volume Solids : 60%

VOC content : 400g - 440g / litre

Safe use.

This product is formulated for professional use. 

Please ensure suitable and appropriate personal protective equipment is worn during handling and application.

For more detail please consult the Product Datasheet.

Please contact us for the Health and Safety Datasheet.