Zinsser Watertite Paint - 5 Litre

Zinsser Watertite is an ultra low odour solvent based waterproofing paint suitable for use on interior and exterior concrete, stucco, cement, cinder block and other masonry surfaces. This product is ideal for use on basement walls and for sealing concrete basement slabs. The formula contains state of the art waterproofing resins with Portland cement to create a finish that will stop upto 34psi of water pressure. This smooth non gritty finish dries to a bright white which does not yellow and resists dirt and dust pick-up. It can be applied to dry or damp surfaces immediately and recoated in a s little as 4 hours.

• Low odour
• Ideal for basements
• Can be applied to damp walls
• Prevents fungal degradation on the paint film for 5 years - guaranteed!

Always ensure the surface to be treated is clean, dry and free from any dust, grease, oil, wax, mould or possible contaminates that may interfere with adhesion.

• New masonry must cure for at least 30 days before applying
• Salting or efflorescence (a white powdery substance) must be removed with a solution of hydrochloric acid or concrete etching compound. Rinse the surface thoroughly with water after application
• Remove all existing mould and mildew with a fungicidal wash
• Previously painted surfaces can affected its waterproofing ability as it’s dependent upon the integrity of the previous coating. For best results, remove as much of the old coating as possible by manually scraping the surface, followed by thorough wire brushing. A belt power sander with a 50 grit sanding belt is also effective
• Exterior surfaces should be power washed or sand blasted to remove all loose and scaling paint and cement
• All holes and cracks, especially active water leaks, must be patched with hydraulic cement

Always test a small area before application to ensure you are happy with the results

• Ensure the area is well ventilated and extinguish all flames and pilot lights at water heaters and heating systems
• Stir thoroughly before and during application
• Do not thin
• Apply when temperature is above 10°C and not when heavy rain is expected within 24 hours
• Liberally apply the first coat with a polyester brush
• Work the paint into the masonry
• Ensure you have a pinhole free film
• Allow to dry for 4 hours
• The second coat can be brushed or rolled, do not over spread
• The surface will be touch dry in 1 hour and fully cured in 7-14 days depending on the surface
• Always enusure to apply 2 coats as the first coat primes and seals the surface. The topcoat completes the sealing process to ensure protection against water intrusion

Note: Always follow the manufacturer instructions found on the tin.

Q. As Watertite is solvent based, will this yellow? If so how often do I need to maintain this paint?

A. Unlike many solvent based paints the Zinsser Watertie paint is formulated with non-yellowing properties to help retain the white colour. It's formulation also resists dirt and dust pick-up which will keep the surface looking fresher for longer.

Q. Does this contain biocide?

A. Yes, this paint contains biocide to help protect the coating against fungal degradation for a minimum of 5 years after application.

Q. Can Zinsser Watertite help stop growth of mould?

A. Yes, this is a mould and mildew proof paint waterproofing paint, when applied correctly this paint will stop up to 34psi of water pressure making it ideal for basements. It can even be applied to damp or wet surfaces so water problems can be cured immediately.

Delivery - All orders placed on a working day before 3pm will be dispatched on the same day for next working day delivery. Orders placed before 3pm on Friday will be delivered on Monday (excluding bank holidays). Orders placed on weekends and Bank Holidays will be dispatched on the next working day. 

Delivery of Tinted Products - Tinted paints are dispatched in line with our express order process, shown below. However, due to their bespoke nature, please allow up to an additional 5 working days to accommodate any potential courier delays or delivery issues before receiving a refund or replacement.

We strongly suggest customers avoid booking tradespeople until they receive their order. Next Day Paint will not be held liable for any costs incurred due to order processing errors, delivery delays, or other issues that may result in financial loss.

Delivery Options

Express Shipping - £3.99

Order by: 3pm, Monday - Sunday

Expected delivery: Next working day, 8am - 9pm

Orders placed on weekends or bank holidays will be dispatched on the next working day for delivery on the following day

AM Delivery - £12.99

Order by: 2pm, Monday - Sunday

Expected delivery: Next working day by 2pm

Orders placed on weekends or bank holidays will be dispatched on the next working day for delivery on the following AM

Late Cut-Off - £5.99

Order by: 4pm, Monday - Friday 

Expected delivery: Next working day, 8am - 9pm

Orders placed on weekends or bank holidays will be dispatched on the next working day for delivery on the following day

Saturday Delivery - £9.95

Order by: 2pm, Friday 

Expected delivery: Saturday, 8am - 9pm

Standard Delivery (Out of Zone Postcodes Only) - £6.99

Order by: 3pm, Monday - Sunday 

Expected delivery:  3-5  working days, 8am - 9pm

Orders placed on weekends or bank holidays will be dispatched on the next working day for delivery on the following day

We do not deliver to the Channel Islands or the Republic of Ireland

Certain postcodes delivery times and charges may vary please head to the cart to see your available delivery options.

Returns

We offer a 14 day money back guarantee for all goods shipped correctly that are not required. If the item is not required, please send the item back for a full refund in its original condition, unused with its original packaging. Please note return for unwanted item is at your own expense.

Contact us as soon as possible to inform us you will be returning the product either by a contact form or by calling our team on 0161 960 0217.

All tinted paint purchases are final and non-refundable. If you're unsure about your selection, please refer to the product listing or contact us for guidance before ordering. Once mixed, tinted paints cannot be returned or refunded, regardless of delivery delays or changes in circumstances.

While we aim to meet delivery timelines, we are not responsible for delays caused by couriers, weather, or other external factors.

We recommend ordering samples or colour charts before purchasing. While we strive to represent colours accurately, screen settings and surface types can affect appearance. Opened tins cannot be returned due to dissatisfaction with colour.

For non-tinted products, we offer a 14-day money-back guarantee. Items must be returned unused, in original condition and packaging, at your own expense.

Damaged Paint

Please visit our damages page, where we can help resolve the issue for you. 

Incorrect Item

If we have sent you a different item from what you ordered, we will be happy to organise an exchange for the correct goods at no extra charge to yourself, please get in touch to organise this.

Faulty Items

Faulty items can be refunded or exchanged within 30 days. All returns are tested, and if no fault is found, no refund will be issued you'll have the option to have the item returned. For faults discovered after 30 days, please contact the manufacturer for further support.