SR71 – Smart Liquid

SR71 - WetherDry LiquidSR71 – Smart Liquid

SR71 WetherDry™ Smart Liquid Nano is an aqueous based hydrophobic impregnating agent based on a mixture of silane and siloxane. SR71 is a high quality speciality product for hydrophobic impregnation of natural mineral substrates.

Pack Size
25 Litres
Pallet QTY
30 Units
Application Tool
Brush, Roller or Spray
Suitable Substrate
Concrete ,Brick, stone and renders
0.1 – 0.2 Litres per M²
Application Temperature
5˚c – 25˚c
Humidity Requirement
Less than 95%


All surfaces should be clean, reasonably dry and free from algae, lichen & other growths and grease. If there is evidence of organic growth, power wash to remove & apply Wethertex™ Fungicidal wash in accordance with instructions.
SR71 WetherDry™ Smart Liquid is supplied ready to use.
SR71 WetherDry Smart Liquid is best applied to the mineral substrate by the airless technique, undiluted and in the desired thickness. Brushes or lambskin roller may be used for smaller areas. Up to 0.1 – 0.2 Ltrs/m² may be applied in one operation to vertical surfaces without loss of material. The exact amount depends on the absorbency of the substrate.

When stored unopened in a dry place at temperatures above 5oC, shelf life is 12 months from date of manufacture.

All equipment must be washed with clean water immediately after use. Waste material should not be emptied into drainage systems.

This product contains a biocide for the protection of the cured product. Contains 2-OCTYL-2H-ISOTHIAZOL-3-ONE. May produce an allergic reaction. For further information, please request the material safety data sheet for this product.
The weather conditions for application and drying are critical. Do not apply if any of the following conditions are likely to arise during –
or in the first 24 hours following application:
o If frost is forecast, or in excessive wet conditions
o When Relative Humidity is above 95%
o In temperatures below +5ºC or above +25ºC
o If the elevation is in direct sunlight
o If the substrate is hot (at or above 30C) or below +5ºC
o Coverage rates are approx. and do not take into account wastage and uneven substrates
The render must be protected against heavy rain, direct sun or high wind in the first 24 hours after application. Sheeting the façade or
the scaffold is advised to protect against this. For this particular product, if these parameters are not met, the product is at risk of, efflorescence
and potential failure. It is the responsibility of the application contractor to manage and record the weather conditions during
application and curing of the product.
To the best of our knowledge and belief, this information is true and accurate. However, as conditions of use of the product and the expertise
of any labour involved are beyond our control, the end user must satisfy himself by prior testing that the product is suitable for his
specific application if no spec has been provided for the project in hand. No responsibility can be accepted, nor any warranty given by
our Representatives, Agents or Distributors. Products are sold subject to our Standard Conditions of Sale and the end user should ensure
that he has consulted our latest literature.

Further Information

Download SR71 Product Datasheet

Take a Look at Our Colours & Finish Options

19 beautiful pastel shades that will allow you to colour your building with a sympathetic approach to its surroundings.

Specification & Advice Service

We offer a full specification and technical servie for all approved contractors.

Approved Network of Quality Approved Contractors

With our wide network of carefully selected contractors we can put you in touch with someone in your area.

Wetherby Group

Dalton Industrial Estate, Dalton
North Yorkshire, YO7 3HE

Get in Touch

T+44 (0)1845 578555

F+44 (0)1845 578777

Awards & Accreditations
Copyright Wetherby GroupTM