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Silane Siloxane Water Repellent RJ-WP03(E)

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Silane Siloxane Water Repellent RJ-WP03(E) is anon-ionic silane/siloxane emulsion which is a kind of water based water repellents. This product is an excellent penetration waterproofing agent, when RJ-WP03 (E) is coated on the surface of the substrate, it will penetrate into the substrate and does not block capillary. Hydrophobic film is formed by the reaction of reactive groups,and combined with hydroxyl groups in the substrate to form a Si-R siloxane chain. It will fill the micro pores, improve the strength of the substrate. After the construction, its water contact angle can reach 120°or more with high water resistance ability. RJ-WP03(E) is the ideal choice for building materials and stone surface protection.

Masonry Water Repellent RJ-WP03E

Fig.2-16 RJ-WP03E effect of several different experimental substrates

Silane Siloxane emulsion water repellent

Fig.2-17 RJ-WP03E thawing experimenton cement substrate  

For use method details, please contact, RUIchem will provide technical support. 

Technical Index


Milky white liquid

Active Content

40% min

Centrifugal Stability

No layers after  centrifuge at 3000 rpm for 30 min



Dilution  ratio





l   Low molecular structure,can penetrate into the substrate surface to provide protection, penetration depth≥6 mm

l   Greatly reduce the water absorption of the substrate, resist corrosion and acid rain

l   Not affect the appearance of the substrate, improve anti-efflorescence ability and prolong the life of the substrates

l   Water-based, low VOC


Interior and exterior surface of buildings

Brick, concrete and wood

Natural stone and artificial stone

Highway and airport pavement

Ancient artifacts and ancient buildings


Silane Siloxane Water Repellent RJ-WP03E is available in 50kg plastic barrel or according to customer request.


Sealed storage under 5-30 ℃ temperature. Avoid high temperature and freezing conditions.

Shelf life

Shelf life: 12 months.

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