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
• Composite Surfaces: Always ensure that the surface has been prepared sufficiently, Zinsser Universal Degreaser & Cleaner is ideal for this. As composite surfaces tend to have a wax like finish we would also advise lightly abrading the surface area. Two coats are required, the first coat acts as the primer and the second seals and protects the system

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