Vegam Exterior Primer

About This Product

Vegam Exterior Primer is specifically formulated for exterior masonry applications where moisture, UV and biological attack are ongoing threats to the paint system's integrity. Its anti-fungal biocide package prevents algae and mould from colonising the primer layer — protecting both the primer and topcoat from premature failure.

The deep-penetrating resin consolidates and binds the surface, reducing differential porosity that causes uneven topcoat absorption and patchy appearance on exterior facades.

Ideal Applications

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Exterior Masonry

Essential primer for cement plaster, concrete and brick facades.

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Monsoon-Exposed Surfaces

Anti-fungal properties protect high-humidity facade surfaces.

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New Construction

Applied to fresh-cured plaster as first step in exterior paint system.

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Repaint Projects

Binds and seals chalky old paint surfaces before repainting.

Technical Specifications

Base	Acrylic emulsion, water-based
Finish	Flat
VOC Level	Low VOC — 30 g/L
Drying Time	Touch dry: 1.5 hrs \| Recoat: 6 hrs
Coverage	140 to 160 sq ft per litre
Coats Required	1 to 2 coats
Dilution	Up to 10% water
Pack Sizes	4L, 10L, 20L
Biocide	Anti-fungal, anti-algae package
System Req.	Mandatory for 8-year warranty

System Coverage

Coverage varies by surface texture, porosity and application method. Contact our technical team for project-specific estimates.

Coverage Guide

Smooth rendered facade150 to 160 sq ft/L

Standard cement plaster135 to 150 sq ft/L

Rough / sand-faced plaster120 to 135 sq ft/L

Old painted surface145 to 155 sq ft/L

Application Steps

Surface Preparation

Clean facade — remove dirt, efflorescence, algae and loose paint. Allow new plaster 28 days cure. Test moisture below 15%.

For efflorescence, treat with dilute acid wash, neutralise and allow to dry before priming.

Apply Exterior Primer

Dilute up to 10% with clean water. Apply using brush, roller or spray. Work primer into all pores and crevices.

Allow Full Cure

Allow primer to cure for minimum 6 hours before applying topcoat. Overnight cure recommended in humid conditions.

Apply Vegam Exterior Emulsion

Proceed with Vegam Exterior Emulsion as per its application guide.

Tools & Tips

Recommended Tools

🖌️4–6 inch brush for masonry surfaces

🎨Medium nap roller 12mm for facade work

💨Airless spray for large facades

Pro Tips

—Apply only in dry conditions — rain within 4 hours of application will wash off fresh primer.

—For surfaces with active biological growth, treat with fungicidal wash before priming.

—Do not apply over wet or damp surfaces.

Complete Paint System

Vegam Exterior Primer is step 3 of the Vegam 8-Year Exterior System. It is mandatory for warranty qualification and must be followed by Vegam Exterior Emulsion minimum 2 coats.

Recommended System

1Surface PreparationClean masonry, fill cracks, allow cure

2Vegam Dampproof1 coat on damp-prone areas

3Vegam Exterior Primer1–2 coats on all exterior masonry

4Vegam Exterior Emulsion2 coats minimum, 6–8 hrs apartThis Product

Warranty Conditions

✓Full Vegam system must be used — primer, intermediate and topcoat from Vegam range

✓Surface must be properly prepared per Vegam application guidelines

✓Applied by a trained painter using recommended tools and methods

✓Normal weathering conditions — warranty does not cover structural movement or flooding

✓Warranty is non-transferable and applies from date of application

✓Contact our technical team for written warranty documentation

Technical Support Our team provides free specification support for builders, architects and contractors. Contact us for project-specific system recommendations.