Zinsser Watertite

Zinsser Watertite View larger
Typical Coverage (per coat)2m² per litre
Touch Dry1 Hour
ApplicationBrush, Roller
The figures stated above are approximate. Please ensure you refer to all datasheets for full application information.

A waterproofing paint that is guaranteed to keep water out and contains a biocide that protects the dried coating against fungal degradation for a minimum of 5 years. This waterproof masonry paint can easily be applied to wet or dry surfaces creating a smooth, non-gritty finish.

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£60.56 + VAT

Zinsser Watertite is a solvent-based, mould and mildew-proof, internal and external waterproofing paint that is guaranteed to keep water out by sealing masonry, and to give a fantastic finish in commercial spaces and workplaces. In-part, Watertite is designed for dank and damp cellars/basements, containing a biocide that protects the dried coating against fungal degradation for a minimum of 5 years. For ease of use and versatility, it can easily be applied to wet or dry surfaces in a range of light, pastel shades, to create a smooth, non-gritty finish.

Watertite has a unique solvent-based formula that combines a state-of-the-art waterproofing resin with Portland cement to create a coating that stops up to 34psi of water pressure. It is ideal for rooms and surfaces where mould, damp and fungal degradation have been a problem; wine cellars; storage rooms in compartmentalised basement spaces; areas with minimal or poor ventilation.

Unlike other waterproof coatings, Zinsser Watertite waterproofing paint can be applied directly to dry, damp or wet surfaces, allowing for water problems to be cured immediately with minimal preparation or surface drying-out requirements. It can also be recoated in just four hours, drying to a smooth, bright white, and non-yellowing finish that resists dirt and dust pick-up.

Project and facility managers will benefit from using Zinsser Watertite in college, schools and educational facilities, where there are many storage rooms without ventilation, poor air circulation, and long-term requirements of storing paperwork, stationary and equipment on permanent shelving and units.

Watertite can be tinted to most off-white or pastel colours, and has an ultra-low odour formula – lower than most standard emulsions. It adheres to any interior or exterior masonry surface, above and below grade, and is formulated to prevent recurring efflorescence on concrete and brickwork.

Touch-dry in one hour and recoatable after 4 hours, surfaces must be free of any active leaks prior to the first coating. It is advised to apply Watertite to textured surfaces, and smooth surfaces may need to be abraded or blasted first, to create a surface profile. For more information about applying Zinsser Watertite, please refer to the manufacturer’s product datasheets, or alternately contact Rawlins Paints’ technical support team.

Features & Benefits

• Guaranteed to stop up to 34psi of water pressure
• Prevents fungal degradation on the paint film for 5 years – guaranteed!
• Smooth, non-gritty finish applies easily to wet or dry walls.
• Ideal for basements and other interior / exterior surfaces.
• Ultra-low odour solvent-based formula.

Please note: Errors and omissions excepted (E&OE). It is your responsibility to read all data sheets (available upon request) prior to application. The specification given above is our best recommendation from the information supplied and is given in good faith but without warranty. We recommend a trial area is coated to ensure the product meets your requirements.

Send us your question


A below ground level (1m) internal wall in an old converted barn has been previously tanked, but now is damp. Plaster sound and render sounds solid. Will Watertite be a cost effective solution after stripping back plaster compared to very expensive re-tanking? Thanks for your help Graham

Graham Peck from Yelverton (U.K. ) - 21/11/17


Zinsser Watertite is a cheaper option than tanking and should work in this situation. It needs a sound masonry surface to bond to, all the plaster must be removed back to the masonry substrate. Apply the Watertite directly to the render surface, no primers or stabilisers should be applied. Be sure to read the products Technical Data Sheet carefully and advise if you have any other questions.

Hi,Can the zinsser-watertite paint be applied on internal skimmed walls. I have a house that is insulated and water has saurated the insulation and so in the kitchen water penetrates the wall and so paint flakes off.I note from the product description that it can only be applied on brick walls?Thankshttps://www.rawlinspaints.com/home/hygiene-coatings/mould-damp-proof-paints/447-zinsser-watertite.html

Aziz from sussex (uk) - 13/10/17

Zinsser Watertite works best when applied to bare masonry surfaces, for your application you may be better looking at Rust-Oleum Mathys Durbocem or Coo-Var Anti-Damp Paint. The source of your water ingress should be remedied ASAP.

Is this the best paint to use in our cellar. Bricks are quite wet and in a couple of areas water is coming in through old mortar joints

Tracey from West Midlands (England) - 03/09/17

Zinsser Watertite should be OK for this job, this is the type of situation the product is used for. It can be applied to damp surfaces however these must be clean, sound and any previous paint coatings well adhered. Any gaps in the mortar joints where the water is leaking through will need to be patched up with render. Refer to the Technical Data Sheet and follow all the steps regarding preparation and application.

Can this paint be used over existing emulsion? I want to use it in the cellar, the plastered walls have already been painted. but damp is coming through in places. Provided any loose paint is scraped off, would this paint work?

Liz Spencer from Chipping Norton, Oxon (UK) - 15/05/17

No, Zinsser Watertite should not be applied over existing coatings. Instead see Coo-Var Anti-Damp Paint.

Can I use this product to paint over the tiles in my shower ??

Ali Reed from Chippenham (England) - 23/04/17

No, you would need to use instead something like Rust-Oleum Tub & Tile Refinishing Kit.

how many coats does zinzeer watertight require on bare block-work walls please

r collier from rainham essex (uk) - 15/02/17

2 - 3 coats at 2m² per litre, per coat.

Would it be ok in a bathroom to paint Watertight over water resistant plasterboard, and ceiling, then tile over part of the board?Is the paint likely to affect tile adhesion?

G Overbury from Walsall (UK) - 15/06/16

This is a fairly common question and the answer is Zinsser Watertite is definitely not recommended for this situation. You should ask the supplier of the plasterboard if any special treatment is required before tiling over, but we would expect you can tile straight over the board.

How many litres in a tin?

Ian from Liversedge (West yorkshire) - 02/04/16

This product is available in 5 litre or 10 litre tins.

Can Zinsser Watertite be used indoors for damp proofing?

angela moth from swansea (wales) - 27/10/15

Zinsser Watertite has a unique solvent based formula that combines a state-of-the-art waterproofing resin with Portland cement to create a coating that stops up to 34psi of water pressure. It can be used internally and externally on walls.

Can we overpaint Zinsser Watertite?

Orpheus consultants from Glos (Uk) - 26/05/15

Zinsser Watertite can be mixed to most pastel shades and produces a smooth, eggshell finish. But, if desired, it may be over coated with most good quality paints, but this will nullify the mould and mildew protection portion of the Zinsser warranty. To maintain the warranty, use Zinsser Perma-White Interior or Zinsser Perma-White Exterior which can be mixed to almost any colour required in a variety of sheen levels. Whichever method is chosen, allow a minimum of 14 days before over-painting.

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Free delivery on orders over £75 (terms & conditions)

• Deliveries will be made within 3 working days (standard delivery)
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UK Mainland OnlyUp to £75.00£75.01 +
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Next day before 09:00am£30.00£30.00
Next day before 10:30am£25.00£25.00
Next day before 12:00pm£20.00£20.00
Saturday Delivery£35.00£35.00

£25 (Standard 2-3 Day Delivery Only)

AB30, AB31, AB32, AB33, AB34, AB35, AB36, AB37, AB38, AB44, AB45, AB46, AB47, AB48, AB49, AB50, AB51, AB52, AB53, AB54, AB55, AB56, FK, G83, IV, KW1, KW2, KW3, KW4, KW5, KW6, KW7, KW8, KW9, KW10, KW11, KW12, KW13, KW14, PA, PH, HS, KA27, KA28, ZE

£35 (Standard 2-3 Day Delivery Only)


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Next Day delivery and Saturday Service is available on stocked items for orders received before 11:00am only.

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Please note: Any time or date named by Rawlins Paints Limited for delivery is given and intended as an estimate only and Rawlins Paints Limited shall not be liable to make good any damage or loss whether arising directly or indirectly out of a delay in delivery. Deliveries are made using a reliable nationwide carrier. Although over 99% of consignments arrive on time, we recommend that no labour is employed to undertake work until materials have arrived on site.

Watertite TDS


Watertite MSDS

Whilst every effort is made to ensure our data sheets are up to date, we advise you check the latest revision directly with the manufacturer to ensure you have the most current version.
E J Rawlins & Co. Ltd trading as Rawlins Paints make available product data sheets and information in good faith but without warranty. We do not accept liability for any errors or omissions contained within the data sheets or any outdated versions.