Rust-Oleum Mathys Dac Hydro Plus
  • Rust-Oleum Mathys Dac Hydro Plus

Rust-Oleum Mathys Dac Hydro Plus


Rust-Oleum Mathys Dac Hydro Plus is a weather resistant, microporous, elastic finish that combines nice aesthetics with long-lasting colour retention.

  • Quick, easy and affordable
  • Creates an impermeable water barrier
  • Water based formula, low odour
  • For a variety of roof tiles
  • Long-lasting gloss retention
  • Waterproof after just 2 hrs
  • More below!

Pick a Colour
  • Current colour: C859 Black
Close colour picker
  • C351 Slate
  • C353 Brown
  • C355 Tile Red
  • C859 Black
  • E596 Rustic
£143.61(ex. VAT)
£172.33 (inc. VAT)
Please choose your colour
In Stock and Available for Delivery (See Delivery Options Below)


Rust-Oleum Mathys Dac Hydro Plus

Rust-Oleum Mathys Dac Hydro Plus is weather resistant, microporous, elastic, easy to apply and has a durable finish that combines nice aesthetics with a long-lasting colour retention which helps to transform old discoloured roof tiles into new looking roof tiles, while protecting the substrate from further weathering.

Further Features

  • Theoretical coverage: 9-11m²/l per layer
  • Recoatable after 24hrs
  • Appearance: Satin matt
  • Easy to apply by brush, roller or spray

Recommended Uses

  • For pitched roofs
  • Domestic use
  • Business use

Technical Data

  • Density: 1,16
  • Gloss Level: Satin
  • Solids content in volume: 30 %
  • Solids Content in weight: 40 %

Drying Times At 20°C/RH 50%

  • Touch dry: 1 hour
  • Dry to handle: 2 hours
  • Dry to recoat: 24 hours
  • Fully cured: 1 week

Theoretical Consumption

10 m²/l per coat

Practical Consumption

Practical coverage depends on many factors such as porosity and roughness of the substrate and material losses during application.

Surface Preparation

After a good cleaning with pure water under high pressure (200 bars), all substrates have to be dry, clean, not chalking and normally absorbent (untreated roof tiles). Apply an anti fungicidal solution such as AMW fungicidal Wash for removal of moss, etc. Recommended primers for substrate:

  • Concrete: no primer required
  • Slate tiles: Primer 44HS or Pegafix
  • Terracotta tiles, concrete tiles type Redland, fully weathered and/or very porous: Primer 44HS
  • Very dense substrates: Noxyde diluted with 25% volume water
  • It is recommended to always perform an adhesion test

Application Conditions

> 8°C, relative humidity max. 80%. Do not apply in full sun

Please contact Rawlins Paints' Technical Support Team on 0113 2455450 (option 2) or send a message to [email protected] for more information.

Product Details

Data sheet

For Use By
Consumer Use
Interior / Exterior Use
Water / Solvent Based
For Use On
Slate Tiles
Application Method
Standard / Ready Mixed
VOC Levels
Ultra-Low (5-49 g/l)
Pack Size
Dry to Handle (at 20°C)
2 Hours
Dry to Recoat (at 20°C)
24 Hours
Fully Cured (at 20°C)
1 Week
10m² per litre
Min. Application Temperature
Solids by Volume
Shelf Life (from date of manufacture)
2 years from date of production in unopened cans, if stored in dry, well ventilated areas, not in direct sunlight at temperatures between 5° and 35°C.
Touch Dry
1 Hour
Recommended Dry Film Thickness
1st coat: 33 µm, 2nd coat: 26 µm
Recommended Wet Film Thickness
1st coat: 110 µm (125 g/m²), 2nd coat: 85 µm (100 g/m²
UN Number
Not regulated
Base Type
Suitable For Use On
Concrete Roofs
Suitable For Use On
Pitched Roofs
Suitable For Use On
Suitable For Use On
Suitable For Use On
Roof Tiles
Application Method
Application Method
Application Method
Product Type
Fastest Delivery
Next Working Day
Colour Family
Colour Family
Colour Family
Colour Family

Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

questions Philip Bowes  on 2023-09-18 15:02:21

What's the life expectancy of these products

Answer from Rawlins’ Technical Team: 

Unfortunately the manufacturer does not list an expected life expectancy. 

The substrate, preparation and the amount of exposure will all affect the lifespan.

questions Joe on 2019-03-01 11:26:30

Does the Dac hydro plus paint contain fungicidal stuff to prevent moss? Thank you

Answer from Rawlins’ Technical Team: 

No, but Britannia Tilecoat Advanced does.

questions H Hamilton on 2018-11-08 13:46:30

Hello, Is the Dac hydro tile paint BBA certificated or PRA approved by UK based 3rd party accreditation? And are two coats necessary? Thank you

Answer from Rawlins’ Technical Team: 

Rust-Oleum Mathys Dac Hydro Plus has neither of these accreditations, however 2 coats are required as per the product data sheet. 

questions Guy on 2018-09-05 23:01:05

Do you do sample packs of Rust-Oleum Mathys Dac Hydro Plus? Just looking to colour test?

Answer from Rawlins’ Technical Team: 

No, unfortunately the 15lt pack sizes listed on our website are the only size this product is available in.

questions Ray on 2018-06-30 11:22:49

Hi painting the roof tiles would it create Condensation in the loft area Regards ray

Answer from Rawlins’ Technical Team: 

No it would not.

questions Clive Prosser on 2017-07-26 16:36:44
Question: Do you have a paint designed for use on natural slates?
Answer from Rawlins’ Technical Team: 

Rust-Oleum Mathys Dac Hydro Plus is suitable for slate roof tiles as long as they are first primed with Rust-Oleum Mathys Primer 44 HS. Please carry out a test prior to application to ensure compatibility, adhesion and appearance.


Question about the product

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Rust-Oleum Mathys Dac Hydro Plus is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.

Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.

Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.

All delivery costs below are excluding VAT

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