Silsan® Impregnating Powders

Silicones on a Powder Carrier

Silanes and siloxanes are useful tools in the hydrophobisation (water repellence and durability) of construction materials and facade coatings. These surfaces require a durable solution whilst not affecting their appearance. 

Many construction materials are delivered in dry form and diluted with water shortly before application. The addition of liquid water repellents at this point would be time consuming and a potential source of error. Ideally the dry mixed material should already contain the water repellent. This is the purpose of our range of Silsan® impregnating powders, which are comprised of silicone water repellents on a powder carrier. Once diluted with water and applied they develop their water repellent effect in the construction material without reducing its water vapour permeability.


    • Water wettable powder comprised of water repellent silanes and siloxanes on a powder carrier.

    • White powder.


    • Good water solubility allowing for easy incorporation and elimination of powder bubbles.

    • Excellent water beading.

    • Low soiling tendency.

    • Very low water absorption with high water vapour permeability.

    • Reliable, durable, water repellency.

Typical Applications

    • Dry mixes based on lime, cement, synthetic resins, gypsum and water glass.

    • Mortars and adhesives.

    • Tile fillers.

    • Cement and silicate based paints.

Also Used In

Featured grades with technical datasheets

A brief overview of the key grades is given below. You will find the Technical Datasheets (TDS) available for download. If you are looking for a Safety Datasheet (SDS) or Product Safety Information (PSI) then please get in touch by phone or via the contact buttons at the top of the page.

Should you not find what you are looking for here then please note that we have further grades available besides these. One of our Technical Sales team will be happy to help. All of the sales team are technically qualified and will be able to advise you on which product to choose. You can either call us, email us or fill in a quick form at the top of the page to get us to call you (Request a Callback). A sample can be requested via the button at the top of the page as well. Please note that by providing us with your contact details, you are agreeing for us to potentially contact you.

Related brochures & technical literature

You will find some of the key product brochures available for download below. There are more brochures available upon request. If you would like to discuss your enquiry further then please get in contact by phone or by filling in the "Request a Callback" form at the top of the page. Someone from the technical sales team will then call you within 24 hours, to discuss your project further.

Silicone Impregnating Powders Brochure

An overview of the Graf powder impregnating range for the dry mix construction industry.

Silicone Impregnating Powders Brochure Brochure /