Silsan® Impregnating Additives

Water Repellent Polysiloxane Additives

Functional polysiloxanes that impart strong water proofing and water beading effects. Grades available for both aqueous and non-aqueous formulations. Use in combination with Silsan® resin binders to maximise their effectiveness.


    • Functional polysiloxanes carried in water, solvents or at 100%.

    • Work well with Silsan® resin binders.

    • Silsan® 1300 has a hydrophobic emulsifier system.


    • High levels of water proofing and water beading.

    • No negative effect on the water vapour permeability.

    • Long lasting and reliable performance.

    • Easy to incorporate either during or after the production process.

Typical Applications

    • Masonry paints.

    • Thin-coat silicone renders.

    • Silicone resin emulsion paints.

    • Kitchen & bathroom paints.

    • Hydrophobic caulks.

    • Sealants.

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.

Silsan® - Silicone Water Repellent Additives

An overview brochure of the Graf additives that impart a high level of water proofing and beading, used in both aqueous and non-aqueous systems.

Silsan® - Silicone Water Repellent Additives Brochure /