Zinsser AllCoat Exterior Matt (Water Based) is an ultimate performance all surface paint. Designed for the long term decoration of timber, metal, masonry, plastic, concrete, cladding and more, it forms a vapourpermeable, low maintenance water-shedding coating, re-coatable in 1 hour.

ALLCOAT® Exterior Matt contains a biocide to protect the dried coating against fungal degradation.

Designed for all exterior surfaces, ALLCOAT® Exterior Matt is ideal for new or previously painted uPVC, wood, galvanising, metals, cladding, weathered bitumen, stucco, brick, stone, cured concrete and more. ALLCOAT® Exterior Matt is self-priming and will bond to existing glossy paints without sanding. For most jobs, there is no need to purchase a separate primer. After removing existing mould and mildew, two coats of ALLCOAT® Exterior Matt will ensure that any exterior looks bright and beautiful for years.

This product is not suitable for application on floors.

Please note: Matt finish products can be more susceptible to scuffs, watermarks, dirt, etc. so in areas of frequent contact/use such as windows, doors, roller shutters etc. an alternative finish may be more suited (such as Satin & Gloss). Please contact our Technical Department on 0113 2455450 (option 2) or send a message to [email protected] for further advice if in doubt.

Click To Jump To Section:

• Features and Benefits
• Product Specification
• Drying Times
• Surface Preparation
• Application Methods
• Application Conditions
• Health and Safety

Features and Benefits

• Cracking, blistering, and flaking resistant
• Weather resistant
• Easy to apply
• Long lasting finish
• Available in 4600+ RAL, NCS and British Standard colours
• Satin & Gloss finishes also available
• Excellent colour retention
• Multi-surface application
• Anti-fungal degradation
• Bonds to glossy paint
• This product is not suitable for application on floors

Product Specification

Drying Times

• Drying and recoat times will be extended at lower temperature and higher RH

Surface Preparation

• Surfaces should be clean, dry, sound, and free of any contamination that may interfere with adhesion
• Remove all loose or peeling paint and chalky paint residue
• Sand edges of any remaining paint film until smooth
• Special precautions should be taken during surface preparation of pre-1960 paint surfaces as they may contain harmful lead. Avoid the inhalation of dust. Wear a suitable face mask if dry sanding
• New concrete, masonry and other related surfaces must be cured at least 30 days before priming
• Remove all existing mould and mildew before painting. To effectively remove mould and mildew, dirt, and chalky paint residue, use a proper fungicidal wash or exterior house cleaner following the manufacturer’s instructions
• Timber at risk from decay or insect attack should be treated with an appropriate preservative
• Bare galvanised metal: apply direct to clean, bright metal, no primer required, ensure surface is clean, dry and free from any surface contamination
• Bare Ferrous Metal: product contains a flash rust inhibitor so will not rust the bare metal on application, can be applied direct if the metal is completely rust free, if this is unlikely apply a dedicated anti-corrosive metal primer such as Rust-Oleum 3369/3380 CombiPrimer Anti-Corrosion prior to application of AllCoat Exterior Water Based

Note: AllCoat Exterior Water Based is not anti-corrosive, it acts as a barrier to water reaching the surface and rusting the metal.

Two-Coat System

• ALLCOAT® Exterior Matt is self-priming and will adhere to most sound surface. It bonds to existing glossy paints without sanding
• The first coat of ALLCOAT® Exterior Matt primes and seals the surface, providing a base for the topcoat. The topcoat completes the sealing process while providing additional moisture resistance and protection
• Before painting, fill all nail holes and gouges
• Where necessary, spot prime knots and sap streaks with Zinsser B-I-N® Primer-Sealer
• For new or unpainted cedar, redwood, or other resinous timbers prime with Zinsser Cover Stain

Application Methods

• Shake or stir well before using
• Apply with synthetic bristle brush, roller, or sprayer
• For airless spraying, use a .017” tip and high-medium (2000-2500 PSI) pressure
• Avoid painting in direct sunlight and maintain a “wet edge” to avoid lapping
• Ensure conditions during application and cure are favourable, do not apply if there is a likelihood of rain, frost, fog, or condensation affecting the freshly applied paint before it has fully cured

Application Conditions

• Ensure air and surface temperature are between 10°C & 32°C and humidity is less than 85% during application and cure of the product

Health and Safety

Clean Up

• Clean application tools, spatters, and spills immediately with warm water and liquid detergent; rinse with water
• Follow equipment manufacturer’s directions to clean spray equipment
• Remove dried product with a household cleaner, rinse with water
• Refer to the product data sheet and safety data sheet in the attachments section above for further details