ViterShield SPF Epoxy Primer/Finish is a high performance two pack epoxy primer/finish for steelwork.
Low temperature curing and indefinitely overcoatable.
High build airless spray capability.
Good anti-blooming properties at lower temperatures.
Good resistance to undercutting from damaged areas.
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.
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