APPLICATION BULLETIN
Kemiko® Repels™
Concrete
Coatings &
Floor systems
Silane/Solixane Sealer
(K51-1)
Description
Kemiko Repels™ (K51-1) is a 0-VOC, extremely user-friendly, waterborne silane/siloxane emulsion
for sealing Kemiko Stone Tone™ Stained concrete and other cementitious substrates. Kemiko
Repels™ Sealer is a water viscosity, single component product that is formulated to repel water,
reduce efflorescence and frost damage, allows substrate to breathe, has very little or no odor, does
not contain solvents, and preserves stained concrete color and natural gloss. Kemiko Repels™ Sealer
is resistant to UV and high alkalinity exposure.
Applications
Kemiko Repels™ K51-1 is applied to properly prepared stained and bare concrete, new and
existing stucco finishes, fired clay brick, and many other cementitious mortars. Typical applications
include commercial and residential driveways, walkways, facades, pool decks, stamped and stained
concrete, new architectural poured in place and precast concrete, and many other horizontal and
vertical above grade exterior surfaces requiring additional protection. Excellent replacement product
for high VOC solvent base water repellents and sealers with excellent wetting properties.
Not formulated to be applied over previously sealed substrate, non-porous substrate, Kemiko Dyes or
Rembrandt™ Polymer Stain.
Surface Preparation
Concrete
Surface must be cured, dry and free from stains and laitance. All visible oil, grease or any other
contaminants must be removed prior to application of coating. Surface preparation includes
using concrete grinding, shot blasting, and acid etching. If acid is used, refer to the manufacturer’s
instructions and recommendations for neutralization. If using mild mechanical abrasion techniques,
use a concrete grinder or shot blasting machine to achieve a surface profile of CSP 3-5. Clean
surface and ensure that all dust, debris, and contaminants have been removed. Check concrete
preparation by applying water over a small area of the concrete surface (especially in areas that
had oil and grease stains). If water beads on the surface, additional surface preparation is needed.
If concrete darkens with no water beading on the surface, then the surface is ready to be coated
after concrete dries. Mask all glass and metal surfaces – THESE SURFACES MUST BE PROTECTED FROM
CONTACT WITH THIS PRODUCT.
Existing Coatings
This product is not designed to be applied over existing coatings.
Warning
Wear a NIOSH approved respirator to control toxin exposure. Scraping, sanding or removing old paint
may release toxic lead dust. Exposure may lead to serious illness, such as brain damage, especially in
children. Pregnant women should avoid exposure. Clean up carefully with a HEPA vacuum and a wet
mop.
Mixing Instructions
Using a mechanical jiffy-type mixer, mix Kemiko Repels™ K51-1 at slow speed (500-1000rpm) for
1-2 minutes until a homogenous mixture is obtained. Scrape sides and bottom of container to ensure
that there is no settled material. Mix again at slow speed for an additional 1-2 minutes.
Mixing Tips
• Do not mix product by hand; only use a mechanical mixer. Hand mixing does not properly
incorporate the components.
• For best results, prior to mixing, have material as close as possible to an ambient temperature of
77ºF (25ºC).
